Data for Uranium-Lead Geochronology, Carbon and Sulfur Stable Isotopes, and Raman Spectroscopy from Graphite Creek, Alaska

This data release supports the paper titled, "Insights into the metamorphic history and origin of flake graphite mineralization at the Graphite Creek graphite deposit, Seward Peninsula, Alaska, USA", published in the journal Mineralium Deposita. The data release includes zircon and titanite U-Pb-Thisotope and age data, monazite U-Pb-Th isotope, trace element and age data, carbon and sulfur stableisotope data, and graphite Raman spectroscopy data, from samples collected at the Graphite Creek deposit, Alaska. Sample location information and descriptions are in table "sample_descriptions.csv". The raw numerical data are presented in tabular format. Additionally, plots of select zircon data – conventional discordia, U/Th vs age, U (ppm) vs age, and percent discordance vs age – are included in PDF format (zircon_plots.pdf), along with scanning electron microscope cathodoluminescence images of zircon in TIFF format. Folder "zircon_data" contains all zircon numerical data, plots, and images. Table "raman_peak_fits.csv" contains all raw Raman spectra peak fit data. Table "monazite_isotopic_data.csv" contains all monazite data. Table "carbon_sulfur_isotopic_data.csv" contains all carbon and sulfur data. Interpretations of the data are presented in the aforementioned journal paper.

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: sample_descriptions.csv
Entity_Type_Definition:

Table with drill core sample information, including location, geologic description, and type of analyses performed on each sample. Presented in a Comma Separated Value (CSV) formatted table.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: Hole_ID
Attribute_Definition: Drill hole identifier
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unique value assigned to each drill hole sample

Attribute:

Attribute_Label: From_m
Attribute_Definition:

Start of sampled interval, measured as distance in meters downhole

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 11.15
Range_Domain_Maximum: 340.26
Attribute_Units_of_Measure: meters (m)

Attribute:

Attribute_Label: To_m
Attribute_Definition:

End of sampled interval, measured as distance in meters downhole

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 11.3
Range_Domain_Maximum: 340.32
Attribute_Units_of_Measure: meters (m)

Attribute:

Attribute_Label: Sample_ID
Attribute_Definition:

Sample number as collected in the field, using drill hole identifier and sampled interval

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Concatenation of Hole_ID and interval values. Key field for one-to-many relationship between zircon, monazite, carbon_sulfer, and titanite analysis results tables.

Attribute:

Attribute_Label: Description
Attribute_Definition: Drill core sample description
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain: Geologic description of sample

Attribute:

Attribute_Label: Type
Attribute_Definition: Sample type
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: drill core
Enumerated_Domain_Value_Definition: Type of sample collected
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: Collection_year
Attribute_Definition: The year the sample was collected
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2018
Range_Domain_Maximum: 2019
Attribute_Units_of_Measure: years

Attribute:

Attribute_Label: Zircon
Attribute_Definition: Indicates a zircon U/Pb geochronology sample
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: x
Enumerated_Domain_Value_Definition: Sample has zircon analysis
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: Monazite
Attribute_Definition: Indicates a monazite U/Pb petrochronology sample
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: x
Enumerated_Domain_Value_Definition: Sample has monazite analysis
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: Carbon_sulfur
Attribute_Definition: Indicates a carbon and/or sulfur isotope sample
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: x
Enumerated_Domain_Value_Definition: Sample has carbon and/or sulfur analysis
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: Raman
Attribute_Definition: Indicates a Raman analysis sample
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: x
Enumerated_Domain_Value_Definition: Sample has Raman analysis
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: Titanite
Attribute_Definition: Indicates a titanite U/Pb geochronology sample
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: x
Enumerated_Domain_Value_Definition: Sample has titanite analysis
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: Elevation_ASL_m
Attribute_Definition:

Sample location elevation, in meters above sea level; negative values indicate below sea level

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -47.18
Range_Domain_Maximum: 255.29
Attribute_Units_of_Measure: meters (m)

Attribute:

Attribute_Label: Lat_NAD83
Attribute_Definition:

Sample location latitude in the NAD83 coordinate system, in decimal degrees

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 65.0371
Range_Domain_Maximum: 65.0465
Attribute_Units_of_Measure: decimal degrees

Attribute:

Attribute_Label: Long_NAD83
Attribute_Definition:

Sample location longitude in the NAD83 coordinate system, in decimal degrees

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -165.543
Range_Domain_Maximum: -165.51
Attribute_Units_of_Measure: decimal degrees

Detailed_Description:

Entity_Type:

Entity_Type_Label: zircon_isotopic_data.csv
Entity_Type_Definition:

Table of raw zircon U/Pb isotopic and calculated age data. Presented in a Comma Separated Value (CSV) formatted table. Details of the calculation methods are provided in "analytical_methods.pdf", included with this data package.

All zircon data and images are provided in the Zip package "zircon_data.zip" included in the data package.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: Sample_ID
Attribute_Definition: Sample number as collected in the field
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Unique value from sample_descriptions table. Key field for relationships between tables.

Attribute:

Attribute_Label: Analysis_ID
Attribute_Definition: LA-ICP-MS analysis number
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unique value assigned to analysis by lab

Attribute:

Attribute_Label: Preferred_age
Attribute_Definition:

Preferred U/Pb grain age, in millions of years before present (mega-annum); type of age indicated in field PA_type

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 80.44
Range_Domain_Maximum: 1728.65
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: PA_uncertainty_2s_minus
Attribute_Definition:

Preferred U/Pb grain age younger uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.77
Range_Domain_Maximum: 223.55
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: PA_uncertainty_2s_plus
Attribute_Definition:

Preferred U/Pb grain age older uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.77
Range_Domain_Maximum: 219.74
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: PA_type
Attribute_Definition:

Preferred U/Pb grain age type, either 206Pb/238U concordant scan (field CS_206Pb_over_238U_age_Ma) or 207Pb/206Pb concordant scan (field CS_207Pb_over_206Pb_age_Ma)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 206Pb/238U concordant scans
Enumerated_Domain_Value_Definition: Preferred U/Pb grain age type
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 207Pb/206Pb concordant scans
Enumerated_Domain_Value_Definition: Preferred U/Pb grain age type
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: Concordant_Scans_No
Attribute_Definition: The number of concordant age scans
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2
Range_Domain_Maximum: 30

Attribute:

Attribute_Label: Discordant_Scans_No
Attribute_Definition: The number of discordant age scans
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 28
Range_Domain_Maximum: 30

Attribute:

Attribute_Label: CD_207Pb_over_235U_r
Attribute_Definition: Conventional discordia 207Pb/235U isotopic ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.08179
Range_Domain_Maximum: 4.451

Attribute:

Attribute_Label: CD_207Pb_over_235U_r_2s
Attribute_Definition:

Conventional discordia 207Pb/235U isotopic ratio uncertainty (2-sigma)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00404
Range_Domain_Maximum: 0.69808

Attribute:

Attribute_Label: CD_206Pb_over_238U_r
Attribute_Definition: Conventional discordia 206Pb/238U isotopic ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.01256
Range_Domain_Maximum: 0.30505

Attribute:

Attribute_Label: CD_206Pb_over_238U_r_2s
Attribute_Definition:

Conventional discordia 206Pb/238U isotopic ratio uncertainty (2-sigma)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00028
Range_Domain_Maximum: 0.03956

Attribute:

Attribute_Label: CD_error_corr
Attribute_Definition: Conventional discordia error correlation
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.17
Range_Domain_Maximum: 0.77

Attribute:

Attribute_Label: TWD_206Pb_over_238U_r
Attribute_Definition: Tera-Wasserburg discordia 206Pb/238U isotopic ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.2781
Range_Domain_Maximum: 79.64029

Attribute:

Attribute_Label: TWD_206Pb_over_238U_r_2s
Attribute_Definition:

Tera-Wasserburg discordia 206Pb/238U isotopic ratio uncertainty (2-sigma)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.06462
Range_Domain_Maximum: 32.56323

Attribute:

Attribute_Label: TWD_207Pb_over_206Pb_r
Attribute_Definition: Tera-Wasserburg discordia 207Pb/206Pb isotopic ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.04675
Range_Domain_Maximum: 0.20789

Attribute:

Attribute_Label: TWD_207Pb_over_206Pb_r_2s
Attribute_Definition:

Tera-Wasserburg discordia 207Pb/206Pb isotopic ratio uncertainty (2-sigma)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00134
Range_Domain_Maximum: 0.26935

Attribute:

Attribute_Label: TWD_error_corr
Attribute_Definition: Tera-Wasserburg error correlation
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.4
Range_Domain_Maximum: 0.77

Attribute:

Attribute_Label: OIR_207Pb_over_235U_r
Attribute_Definition: Other isotopic ratios: uncorrected 207Pb/235U
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.08226
Range_Domain_Maximum: 4.49468

Attribute:

Attribute_Label: OIR_207Pb_over_235U_r_2s
Attribute_Definition:

Other isotopic ratios: uncorrected 207Pb/235U uncertainty (2-sigma)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00417
Range_Domain_Maximum: 1.62281

Attribute:

Attribute_Label: OIR_208Pb_over_232Th_r
Attribute_Definition: Other isotpic ratios: 208Pb/232Th
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00275
Range_Domain_Maximum: 0.12217

Attribute:

Attribute_Label: OIR_208Pb_over_232Th_r_2s
Attribute_Definition: Other isotpic ratios: 208Pb/232Th uncertainty (2-sigma)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00025
Range_Domain_Maximum: 0.0632

Attribute:

Attribute_Label: CS_207Pb_over_235U_age_Ma
Attribute_Definition:

Concordant scans 207Pb/235U uncorrected age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 80.27
Range_Domain_Maximum: 1729.99
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_207Pb_over_235U_age_Ma_2sm
Attribute_Definition:

Concordant scans 207Pb/235U uncorrected age younger uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.87
Range_Domain_Maximum: 667.02
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_207Pb_over_235U_age_Ma_2sp
Attribute_Definition:

Concordant scans 207Pb/235U uncorrected age older uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.87
Range_Domain_Maximum: 501.26
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_207Pb_over_235Uc_age_Ma
Attribute_Definition:

Concordant scans 207Pb/235U corrected age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 79.82
Range_Domain_Maximum: 1721.89
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_207Pb_over_235Uc_age_Ma_2sm
Attribute_Definition:

Concordant scans 207Pb/235U corrected age younger uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.75
Range_Domain_Maximum: 520.4
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_207Pb_over_235Uc_age_Ma_2sp
Attribute_Definition:

Concordant scans 207Pb/235U corrected age older uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.74
Range_Domain_Maximum: 413.88
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_206Pb_over_238U_age_Ma
Attribute_Definition:

Concordant scans 206Pb/238U age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 80.44
Range_Domain_Maximum: 1716.33
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_206Pb_over_238U_age_Ma_2sm
Attribute_Definition:

Concordant scans 206Pb/238U age younger uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.77
Range_Domain_Maximum: 223.55
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_206Pb_over_238U_age_Ma_2sp
Attribute_Definition:

Concordant scans 206Pb/238U age older uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.77
Range_Domain_Maximum: 219.74
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_207Pb_over_206Pb_age_Ma
Attribute_Definition:

Concordant scans 207Pb/206Pb age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 36.53
Range_Domain_Maximum: 2889.18
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_207Pb_over_206Pb_age_Ma_2sm
Attribute_Definition:

Concordant scans 207Pb/206Pb age younger uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 63.52
Range_Domain_Maximum: 3739.85
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_207Pb_over_206Pb_age_Ma_2sp
Attribute_Definition:

Concordant scans 207Pb/206Pb age older uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 62.31
Range_Domain_Maximum: 2449.34
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_208Pb_over_232Th_age_Ma
Attribute_Definition:

Concordant scans 208Pb/232Th age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 55.6
Range_Domain_Maximum: 2329.74
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_208Pb_over_232Th_age_Ma_2sm
Attribute_Definition:

Concordant scans 208Pb/232Th age younger uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5.01
Range_Domain_Maximum: 1070.34
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: CS_208Pb_over_232Th_age_Ma_2sp
Attribute_Definition:

Concordant scans 208Pb/232Th age older uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5.01
Range_Domain_Maximum: 1225.3
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_207Pb_over_235U_age_Ma
Attribute_Definition:

Isotopic sums 207Pb/235U uncorrected age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 79.86
Range_Domain_Maximum: 1747.98
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_207Pb_over_235U_age_Ma_2sm
Attribute_Definition:

Isotopic sums 207Pb/235U uncorrected age younger uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.8
Range_Domain_Maximum: 309.22
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_207Pb_over_235U_age_Ma_2sp
Attribute_Definition:

Isotopic sums 207Pb/235U uncorrected age older uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.8
Range_Domain_Maximum: 268.3
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_207Pb_over_235Uc_age_Ma
Attribute_Definition:

Isotopic sums 207Pb/235U corrected age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 73.67
Range_Domain_Maximum: 1734.32
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_207Pb_over_235Uc_age_Ma_2sm
Attribute_Definition:

Isotopic sums 207Pb/235U corrected age younger uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.96
Range_Domain_Maximum: 304.76
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_207Pb_over_235Uc_age_Ma_2sp
Attribute_Definition:

Isotopic sums 207Pb/235U corrected age older uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.96
Range_Domain_Maximum: 264.93
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_206Pb_over_238U_age_Ma
Attribute_Definition:

Isotopic sums 206Pb/238U age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 79.45
Range_Domain_Maximum: 1739.69
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_206Pb_over_238U_age_Ma_2sm
Attribute_Definition:

Isotopic sums 206Pb/238U age younger uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.73
Range_Domain_Maximum: 71.46
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_206Pb_over_238U_age_Ma_2sp
Attribute_Definition:

Isotopic sums 206Pb/238U age older uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.73
Range_Domain_Maximum: 71.06
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_Per_discordance
Attribute_Definition:

Percent discordance between the 235 and 238 ages, equal to (1 - (IS_206Pb_over_238U_age_Ma / IS_207Pb_over_235Uc_age_Ma)) * 100

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -52.9
Range_Domain_Maximum: 81.59
Attribute_Units_of_Measure: percent

Attribute:

Attribute_Label: IS_207Pb_over_206Pb_age_Ma
Attribute_Definition:

Isotopic sums 207Pb/206Pb age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 3863.3
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_207Pb_over_206Pb_age_Ma_2sm
Attribute_Definition:

Isotopic sums 207Pb/206Pb age younger uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 1020.44
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_207Pb_over_206Pb_age_Ma_2sp
Attribute_Definition:

Isotopic sums 207Pb/206Pb age older uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 1893.13
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_208Pb_over_232Th_age_Ma
Attribute_Definition:

Isotopic sums 208Pb/232Th age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 50.52
Range_Domain_Maximum: 6387.92
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_208Pb_over_232Th_age_Ma_2sm
Attribute_Definition:

Isotopic sums 208Pb/232Th age younger uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4.77
Range_Domain_Maximum: 819.36
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: IS_208Pb_over_232Th_age_Ma_2sp
Attribute_Definition:

Isotopic sums 208Pb/232Th age older uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4.77
Range_Domain_Maximum: 803.09
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: U_ppm
Attribute_Definition: Uranium concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 11
Range_Domain_Maximum: 2228
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Th_ppm
Attribute_Definition: Thorium concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 3210
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: U/Th
Attribute_Definition: Uranium / thorium ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.36
Range_Domain_Maximum: 165.67

Detailed_Description:

Entity_Type:

Entity_Type_Label: 12GC002_127_images
Entity_Type_Definition:

Folder containing thirteen cathodoluminescence (CL) images in tiff format from the first 10 zircon grains analyzed for sample 12GC002_127.

All zircon data and images are provided in the Zip package "zircon_data.zip" included in the data package.

Entity_Type_Definition_Source: Author defined

Detailed_Description:

Entity_Type:

Entity_Type_Label: carbon_sulfur_isotopic_data.csv
Entity_Type_Definition:

Table of raw carbon and sulfur stable isotopic data. Presented in a Comma Separated Value (CSV) formatted table.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: Sample_ID
Attribute_Definition: Sample number as collected in the field
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Unique value from sample_descriptions table. Key field for relationships between tables.

Attribute:

Attribute_Label: d13C_permil
Attribute_Definition:

Measured 13C/12C ratio of graphite, relative to the Vienna Peedee belemnite standard, expressed in delta notation, in permil

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -27.6
Range_Domain_Maximum: -12.3
Attribute_Units_of_Measure: permil

Attribute:

Attribute_Label: d13C_permil_dup
Attribute_Definition:

Duplicated measured 13C/12C ratio of graphite, relative to the Vienna Peedee belemnite standard, expressed in delta notation, in permil

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -26.6
Range_Domain_Maximum: -14.7
Attribute_Units_of_Measure: permil

Attribute:

Attribute_Label: d13C_permil_av
Attribute_Definition: Average of d13C_permil and d13C_permil_dup, in permil
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -27.6
Range_Domain_Maximum: -12.3
Attribute_Units_of_Measure: permil

Attribute:

Attribute_Label: d13C_error_permil
Attribute_Definition:

Measured 13C/12C ratio of graphite uncertainty, relative to the Vienna Peedee belemnite standard, expressed in delta notation, in permil

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.1
Range_Domain_Maximum: 0.5
Attribute_Units_of_Measure: permil

Attribute:

Attribute_Label: d34S_permil
Attribute_Definition:

Measured 34S/32S ratio of pyrrhotite, relative to the Vienna Cañon Diablo troilite standard, expressed in delta notation, in permil

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -13.9
Range_Domain_Maximum: 10.1
Attribute_Units_of_Measure: permil

Attribute:

Attribute_Label: d34S_error_permil
Attribute_Definition:

Measured 34S/32S ratio of pyrrhotite uncertainty, relative to the Vienna Cañon Diablo troilite standard, expressed in delta notation, in permil

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.3
Range_Domain_Maximum: 0.3
Attribute_Units_of_Measure: permil

Detailed_Description:

Entity_Type:

Entity_Type_Label: monazite_isotopic_data.csv
Entity_Type_Definition:

Table of raw monazite U/Pb isotopic and trace element data and calculated age data. Presented in a Comma Separated Value (CSV) formatted table. Details of the calculation methods are provided in "analytical_methods.pdf", included with this data package.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: Sample_ID
Attribute_Definition: Sample number as collected in the field, or standard name
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Unique value from sample_descriptions table. Key field for relationships between tables.

Attribute:

Attribute_Label: Analysis_ID
Attribute_Definition: LA-ICP-MS analysis number
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unique value assigned to analysis by lab

Attribute:

Attribute_Label: Sample_type
Attribute_Definition: Unknown (field sample) or reference standard
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: standard
Enumerated_Domain_Value_Definition: Standard type of sample
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Unknown
Enumerated_Domain_Value_Definition: Unknown type of sample
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute:

Attribute_Label: U_ppm
Attribute_Definition: Uranium concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1376
Range_Domain_Maximum: 20952
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: 206Pb_over_204Pb
Attribute_Definition: Common lead 206Pb/204Pb ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -2007.411143
Range_Domain_Maximum: 2767.071076

Attribute:

Attribute_Label: 206Pb_over_204Pb_1s
Attribute_Definition: Common lead 206Pb/204Pb ratio uncertainty (1-sigma)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -3757.761527
Range_Domain_Maximum: 17755.51244

Attribute:

Attribute_Label: TW_238U_over_206Pb
Attribute_Definition: Tera-Wasserburg 238U/206Pb ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.9
Range_Domain_Maximum: 317.77

Attribute:

Attribute_Label: TW_238U_over_206Pb_1s
Attribute_Definition: Tera-Wasserburg 238U/206Pb ratio uncertainty (1-sigma)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.1
Range_Domain_Maximum: 109

Attribute:

Attribute_Label: TW_207Pb_over_206Pb
Attribute_Definition: Tera-Wasserburg 207U/206Pb ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.03905
Range_Domain_Maximum: 1.02361

Attribute:

Attribute_Label: TW_207Pb_over_206Pb_1s
Attribute_Definition: Tera-Wasserburg 207U/206Pb ratio uncertainty (1-sigma)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.08
Range_Domain_Maximum: 81.89

Attribute:

Attribute_Label: 208Pb_over_206Pb
Attribute_Definition: 208Pb/206Pb ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -97.24572545
Range_Domain_Maximum: 24.84409267

Attribute:

Attribute_Label: 208Pb_over_206Pb_1s
Attribute_Definition: 208Pb/206Pb ratio uncertainty (1-sigma)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -3622.345051
Range_Domain_Maximum: 289.0984679

Attribute:

Attribute_Label: W_207Pb_over_235U
Attribute_Definition: Wetherill 207Pb/235U ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0212
Range_Domain_Maximum: 25.7188

Attribute:

Attribute_Label: W_207Pb_over_235U_1s
Attribute_Definition: Wetherill 207Pb/235U ratio uncertainty (1-sigma)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.2
Range_Domain_Maximum: 72

Attribute:

Attribute_Label: W_206Pb_over_238U
Attribute_Definition: Wetherill 206Pb/238U ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00387
Range_Domain_Maximum: 0.22665

Attribute:

Attribute_Label: W_206Pb_over_238U_1s
Attribute_Definition: Wetherill 206Pb/238U ratio uncertainty (1-sigma)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.1
Range_Domain_Maximum: 29

Attribute:

Attribute_Label: W_error_corr
Attribute_Definition: Wetherill error correlation
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.51
Range_Domain_Maximum: 0.58

Attribute:

Attribute_Label: 208Pb_over_232Th
Attribute_Definition: 208Pb/232Th ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.587780366
Range_Domain_Maximum: 0.920486622

Attribute:

Attribute_Label: 208Pb_over_232Th_1s
Attribute_Definition: 208Pb/232Th ratio uncertainty (1-sigma)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -104.0096063
Range_Domain_Maximum: 92.96170773

Attribute:

Attribute_Label: Age_207Pb_over_206Pb_Ma
Attribute_Definition:

207Pb/206Pb age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 230
Range_Domain_Maximum: 4415
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Age_207Pb_over_206Pb_Ma_2s
Attribute_Definition:

207Pb/206Pb age uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 39
Range_Domain_Maximum: 825
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Age_207Pb_over_206Pb_Ma_2ssys
Attribute_Definition:

207Pb/206Pb age systematic uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 39
Range_Domain_Maximum: 825
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Age_206Pb_over_238U_Ma
Attribute_Definition:

206Pb/238U age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 24.9
Range_Domain_Maximum: 1402.8
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Age_206Pb_over_238U_Ma_2s
Attribute_Definition:

206Pb/238U age uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.5
Range_Domain_Maximum: 348.6
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Age_206Pb_over_238U_Ma_2s_2ssys
Attribute_Definition:

206Pb/238U age systematic uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.8
Range_Domain_Maximum: 348.7
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Age_207Pb_over_235U_Ma
Attribute_Definition:

207Pb/235U age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 18
Range_Domain_Maximum: 3351

Attribute:

Attribute_Label: Age_207Pb_over_235U_Ma_2s
Attribute_Definition:

207Pb/235U age uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3
Range_Domain_Maximum: 189
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Age_207Pb_over_235U_Ma_2ssys
Attribute_Definition:

207Pb/235U age systematic uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3
Range_Domain_Maximum: 189
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Age_208Pb_over_232Th_Ma
Attribute_Definition:

208Pb/232Th age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 26.47248448
Range_Domain_Maximum: 12464.49713
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Age_208Pb_over_232Th_Ma_2s
Attribute_Definition:

208Pb/232Th age uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.258442797
Range_Domain_Maximum: 2903.95952
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Age_208Pb_over_232Th_Ma_2ssys
Attribute_Definition:

208Pb/232Th age systematic uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.386643888
Range_Domain_Maximum: 2904.868966
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Duration_s
Attribute_Definition: Analysis duration, in seconds
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.752
Range_Domain_Maximum: 26.186
Attribute_Units_of_Measure: seconds

Attribute:

Attribute_Label: Pb204_ppm_mean
Attribute_Definition: Mean lead-204 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -15317.6709
Range_Domain_Maximum: 13485.72113
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Pb204_ppm_2S
Attribute_Definition:

Mean lead-204 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.944745987
Range_Domain_Maximum: 27391.13783
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Pb206_ppm_mean
Attribute_Definition: Mean lead-206 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 31.5350892
Range_Domain_Maximum: 18030.06932
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Pb206_ppm_2S
Attribute_Definition:

Mean lead-206 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.572299516
Range_Domain_Maximum: 14693.08669
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Pb207_ppm_mean
Attribute_Definition: Mean lead-207 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.205740877
Range_Domain_Maximum: 20242.57776
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Pb207_ppm_2S
Attribute_Definition:

Mean lead-207 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.041872335
Range_Domain_Maximum: 14334.88447
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Pb208_ppm_mean
Attribute_Definition: Mean lead-208 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 113.9818425
Range_Domain_Maximum: 19620.35453
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Pb208_ppm_2S
Attribute_Definition:

Mean lead-208 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.637793183
Range_Domain_Maximum: 12548.80012
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Th232_ppm_mean
Attribute_Definition: Mean thorium-232 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 8076.998873
Range_Domain_Maximum: 194138.0356
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Th232_ppm_2S
Attribute_Definition:

Mean thorium-232 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 631.5014864
Range_Domain_Maximum: 11538.93982
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: U238_ppm_mean
Attribute_Definition: Mean uranium-238 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1375.62122
Range_Domain_Maximum: 20951.55727
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: U238_ppm_2S
Attribute_Definition:

Mean uranium-238 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 38.18272279
Range_Domain_Maximum: 15795.04131
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Si29_ppm_mean
Attribute_Definition: Mean silicon-29 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -875.7899627
Range_Domain_Maximum: 198004.5023
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Si29_ppm_2S
Attribute_Definition:

Mean silicon-29 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 37.5889032
Range_Domain_Maximum: 177037.6809
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: P31_ppm_mean
Attribute_Definition: Mean phosphorus-31 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -740.2098863
Range_Domain_Maximum: 597.2295667
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: P31_ppm_2S
Attribute_Definition:

Mean phosphorus-31 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5.093722625
Range_Domain_Maximum: 1454.017116
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Ca44_ppm_mean
Attribute_Definition: Mean calcium-44 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -11.7064294
Range_Domain_Maximum: 151916.4299
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Ca44_ppm_2S
Attribute_Definition:

Mean calcium-44 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 21.98853092
Range_Domain_Maximum: 110303.3043
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Sr88_ppm_mean
Attribute_Definition: Mean strontium-88 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.977502215
Range_Domain_Maximum: 23071.62706
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Sr88_ppm_2S
Attribute_Definition:

Mean strontium-88 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.541480136
Range_Domain_Maximum: 25393.10922
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Y89_ppm_mean
Attribute_Definition: Mean yttrium-89 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 901.3133005
Range_Domain_Maximum: 48458.96381
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Y89_ppm_2S
Attribute_Definition:

Mean yttrium-89 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 31.29806361
Range_Domain_Maximum: 14832.92458
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: La139_ppm_mean
Attribute_Definition: Mean lanthanum-139 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 7549.502586
Range_Domain_Maximum: 149499.4727
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: La139_ppm_2S
Attribute_Definition:

Mean lanthanum-139 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1513.570831
Range_Domain_Maximum: 14924.27103
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Ce140_ppm_mean
Attribute_Definition: Mean cerium-140 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 6046.415054
Range_Domain_Maximum: 244869.9466
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Ce140_ppm_2S
Attribute_Definition:

Mean cerium-140 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2563.114536
Range_Domain_Maximum: 20905.68497
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Pr141_ppm_mean
Attribute_Definition: Mean praseodymium-141 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 7257.290645
Range_Domain_Maximum: 37078.4367
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Pr141_ppm_2S
Attribute_Definition:

Mean praseodymium-141 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 583.1450008
Range_Domain_Maximum: 10869.12534
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Nd146_ppm_mean
Attribute_Definition: Mean neodymium-146 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 7512.383186
Range_Domain_Maximum: 142594.056
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Nd146_ppm_2S
Attribute_Definition:

Mean neodymium-146 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1840.857105
Range_Domain_Maximum: 28330.56592
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Sm147_ppm_mean
Attribute_Definition: Mean samarium-147 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4896.512677
Range_Domain_Maximum: 36674.51748
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Sm147_ppm_2S
Attribute_Definition:

Mean samarium-147 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 324.8472624
Range_Domain_Maximum: 13375.87372
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Eu153_ppm_mean
Attribute_Definition: Mean europium-153 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 158.393048
Range_Domain_Maximum: 17541.29075
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Eu153_ppm_2S
Attribute_Definition:

Mean europium-153 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4.65401441
Range_Domain_Maximum: 11473.27073
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Gd157_ppm_mean
Attribute_Definition: Mean gadolinium-157 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 6785.555445
Range_Domain_Maximum: 30351.89716
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Gd157_ppm_2S
Attribute_Definition:

Mean gadolinium-157 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 236.7853478
Range_Domain_Maximum: 10960.94621
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Tb159_ppm_mean
Attribute_Definition: Mean terbium-159 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 468.7162766
Range_Domain_Maximum: 16426.9979
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Tb159_ppm_2S
Attribute_Definition:

Mean terbium-159 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 19.18321987
Range_Domain_Maximum: 10042.31903
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Dy163_ppm_mean
Attribute_Definition: Mean dysprosium-163 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 797.1605894
Range_Domain_Maximum: 18489.25165
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Dy163_ppm_2S
Attribute_Definition:

Mean dysprosium-163 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 44.2276092
Range_Domain_Maximum: 10511.27118
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Ho165_ppm_mean
Attribute_Definition: Mean holmium-165 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 44.392563
Range_Domain_Maximum: 16913.22023
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Ho165_ppm_2S
Attribute_Definition:

Mean holmium-165 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.023054302
Range_Domain_Maximum: 10460.029
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Er166_ppm_mean
Attribute_Definition: Mean erbium-166 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 111.423787
Range_Domain_Maximum: 21053.9264
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Er166_ppm_2S
Attribute_Definition:

Mean erbium-166 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 7.070041824
Range_Domain_Maximum: 12538.63371
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Tm169_ppm_mean
Attribute_Definition: Mean thulium-169 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.853893891
Range_Domain_Maximum: 17477.31329
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Tm169_ppm_2S
Attribute_Definition:

Mean thulium-169 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.350719553
Range_Domain_Maximum: 11071.83336
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Yb172_ppm_mean
Attribute_Definition: Mean ytterbium-172 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 21.29733817
Range_Domain_Maximum: 15827.42992
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Yb172_ppm_2S
Attribute_Definition:

Mean ytterbium-172 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.587501524
Range_Domain_Maximum: 9095.620602
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Lu175_ppm_mean
Attribute_Definition: Mean lutetium-175 concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.770706485
Range_Domain_Maximum: 18164.93169
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Lu175_ppm_2S
Attribute_Definition:

Mean lutetium-175 concentration uncertainty (2-sigma), in parts per million

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.43096185
Range_Domain_Maximum: 11210.72624
Attribute_Units_of_Measure: ppm (parts per million)

Detailed_Description:

Entity_Type:

Entity_Type_Label: titanite_age_summary.csv
Entity_Type_Definition:

Table of calculated titanite U/Pb ages for samples in the table "titanite_US_isotopic_data.csv". Presented in a Comma Separated Value (CSV) formatted table. Details of the calculation methods are provided in "analytical_methods.pdf", included with this data package.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: Sample_ID
Attribute_Definition: Sample Identification
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Unique value from sample_descriptions table. Key field for relationships between tables.

Attribute:

Attribute_Label: TRA
Attribute_Definition: Time Resolved Analysis number
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 9249
Range_Domain_Maximum: 9253

Attribute:

Attribute_Label: TW_Intercept_Age_Ma
Attribute_Definition:

Tera-Wasserburg calculated intercept age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 84.5
Range_Domain_Maximum: 92.5
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: TW_Intercept_Age_2SE_Ma
Attribute_Definition:

Tera-Wasserburg calculated intercept age absolute uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.57
Range_Domain_Maximum: 3
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Intercept_Age_MSWD
Attribute_Definition:

Mean standard weighted deviate of the calculated intercept age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.2
Range_Domain_Maximum: 3.3
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: BLR1_TW_Age_Ma
Attribute_Definition:

BLR1 (primary reference material) uncorrected Tera-Wasserburg age absolute uncertainty (2-sigma), in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 961.4
Range_Domain_Maximum: 971.6
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: BLR1_TW_Age_2SE_Ma
Attribute_Definition:

BLR1 (primary reference material) uncorrected Tera-Wasserburg age, in millions of years before present (mega-annum)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5.8
Range_Domain_Maximum: 6.2
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Correction_Factor_F
Attribute_Definition: Correction Factor (F)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.918154904
Range_Domain_Maximum: 0.927896094
Attribute_Units_of_Measure: Ma (mega-annum)

Attribute:

Attribute_Label: Correction_Factor_F_2SE
Attribute_Definition: Correction Factor (F) absolute uncertainty (2-sigma)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00555
Range_Domain_Maximum: 0.005931
Attribute_Units_of_Measure: Ma (mega-annum)

Detailed_Description:

Entity_Type:

Entity_Type_Label: titanite_US_isotopic_data.csv
Entity_Type_Definition:

Table of raw titanite U/Pb isotopic and age data for samples. Presented in a Comma Separated Value (CSV) formatted table. Details of the calculation methods are provided in "analytical_methods.pdf", included with this data package.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: Sample_ID
Attribute_Definition: Sample Identification
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Unique value from sample_descriptions table. Key field for relationships between tables.

Attribute:

Attribute_Label: Analysis_ID
Attribute_Definition: Analysis identification
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unique value assigned to analysis by lab

Attribute:

Attribute_Label: TRA
Attribute_Definition: Time Resolved Analysis number
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 9249
Range_Domain_Maximum: 9253

Attribute:

Attribute_Label: Correction_Factor_F
Attribute_Definition: Correction Factor (F)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.918154904
Range_Domain_Maximum: 0.927896094

Attribute:

Attribute_Label: Correction_Factor_F_2SE
Attribute_Definition: Correction Factor (F) absolute uncertainty (2-sigma)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.005550438
Range_Domain_Maximum: 0.005931495

Attribute:

Attribute_Label: 207Pb_206Pb
Attribute_Definition: Measured ratio of 207Pb/206Pb
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0596
Range_Domain_Maximum: 0.257

Attribute:

Attribute_Label: 207Pb_206Pb_2SE
Attribute_Definition: Absolute uncertainty (2-sigma) of Measured ratio of 207Pb/206Pb
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0012
Range_Domain_Maximum: 0.015

Attribute:

Attribute_Label: ErrorCorrelation_38_6vs7_6
Attribute_Definition: Error correlation of the 238U/206Pb ratio vs 207Pb/206Pb ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.78179
Range_Domain_Maximum: 0.78218

Attribute:

Attribute_Label: 238U_206Pb_Uncorrected
Attribute_Definition: Uncorrected 238U/206Pb ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 52.00208
Range_Domain_Maximum: 76.68712

Attribute:

Attribute_Label: 238U_206Pb_Uncorrected_2SE
Attribute_Definition: Absolute uncertainty (2-sigma) of uncorrected 238U/206Pb
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.128976
Range_Domain_Maximum: 3.593787

Attribute:

Attribute_Label: 238U_206Pb_corrected_with_F
Attribute_Definition: Corrected 238U/206Pb ratio using Fractionation factor (F)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 48.25252691
Range_Domain_Maximum: 70.4106553

Attribute:

Attribute_Label: 238U_206Pb_corrected_with_F_2SE
Attribute_Definition:

Absolute uncertainty (2-sigma) of corrected 238U/206Pb using Fractionation factor (F)

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.018681791
Range_Domain_Maximum: 3.355347572

Attribute:

Attribute_Label: U_ppm
Attribute_Definition: Uranium concentration
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 129.8
Range_Domain_Maximum: 1452
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Th_ppm
Attribute_Definition: Thorium concentration
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 32.69
Range_Domain_Maximum: 876
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Th_U_Ratio
Attribute_Definition: Thorium/Uranium ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.185185185
Range_Domain_Maximum: 0.753012048

Attribute:

Attribute_Label: Young_Old_Population
Attribute_Definition:

Designation of within sample analysis if it is part of younger or older age population

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Y
Enumerated_Domain_Value_Definition: Young population
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: O
Enumerated_Domain_Value_Definition: Old population
Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: NA
Enumerated_Domain_Value_Definition: Population unknown
Enumerated_Domain_Value_Definition_Source: Author defined

Detailed_Description:

Entity_Type:

Entity_Type_Label: titanite_RM_isotopic_data.csv
Entity_Type_Definition:

Table of raw titanite U/Pb isotopic and age data for reference materials. Presented in a Comma Separated Value (CSV) formatted table. Details of the calculation methods are provided in "analytical_methods.pdf", included with this data package.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: Reference_material_ID
Attribute_Definition: Reference Material number
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain: Reference Material number

Attribute:

Attribute_Label: TRA
Attribute_Definition: Time Resolved Analysis number
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 9249
Range_Domain_Maximum: 9253

Attribute:

Attribute_Label: Analysis_ID
Attribute_Definition: Analysis identification
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unique value assigned to analysis by lab

Attribute:

Attribute_Label: Correction_Factor_F
Attribute_Definition: Correction Factor (F). No data shown as -99999
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.918154904
Range_Domain_Maximum: 0.966791486

Attribute:

Attribute_Label: Correction_Factor_F_2SE
Attribute_Definition:

Correction Factor (F) absolute uncertainty (2-sigma). No data shown as -99999

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.005550438
Range_Domain_Maximum: 0.006667189

Attribute:

Attribute_Label: 238U_206Pb
Attribute_Definition: Measured ratio of 238U/206Pb
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.821169
Range_Domain_Maximum: 6.451613

Attribute:

Attribute_Label: 238U_206Pb_2SE
Attribute_Definition: Absolute uncertainty (2-sigma) of Measured ratio of 238U/206Pb
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.09585063
Range_Domain_Maximum: 0.2702063

Attribute:

Attribute_Label: 207Pb_206Pb
Attribute_Definition: Measured ratio of 207Pb/206Pb
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0815
Range_Domain_Maximum: 0.9258

Attribute:

Attribute_Label: 207Pb_206Pb_2SE
Attribute_Definition: Absolute uncertainty (2-sigma) of Measured ratio of 207Pb/206Pb
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0011
Range_Domain_Maximum: 0.018

Attribute:

Attribute_Label: ErrorCorrelation_38_6vs7_6
Attribute_Definition: Error correlation of the 238U/206Pb ratio vs 207Pb/206Pb ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.36281
Range_Domain_Maximum: 0.79771

Attribute:

Attribute_Label: Approx_U_PPM
Attribute_Definition: Approximate U concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 157.2
Range_Domain_Maximum: 805
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Approx_Th_PPM
Attribute_Definition: Approximate Th concentration, in parts per million
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 120.2
Range_Domain_Maximum: 851
Attribute_Units_of_Measure: ppm (parts per million)

Attribute:

Attribute_Label: Final_U_Th_Ratio
Attribute_Definition: U/Th ratio
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.84
Range_Domain_Maximum: 1.686

Detailed_Description:

Entity_Type:

Entity_Type_Label: raman_peak_fits.csv
Entity_Type_Definition:

Tables of Raman analysis sample analysis results. Presented in a Comma Separated Value (CSV) formatted table.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: Sample_ID
Attribute_Definition: Sample Identification
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Unique value from sample_descriptions table. Key field for relationships between tables.

Attribute:

Attribute_Label: shift
Attribute_Definition: Raman shift of measurement, in centimeters^-1
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1000.51
Range_Domain_Maximum: 1798.88

Attribute:

Attribute_Label: raw
Attribute_Definition: Measured Raman spectrum intensity
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 37.3346
Range_Domain_Maximum: 3521.95

Attribute:

Attribute_Label: fit
Attribute_Definition: Total fit to the measured spectrum (baseline + all peaks)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 47.6953588
Range_Domain_Maximum: 3508.046

Attribute:

Attribute_Label: baseline
Attribute_Definition: Polynomial baseline fit to raw spectrum background
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 47.1402521
Range_Domain_Maximum: 3014.6769

Attribute:

Attribute_Label: blsub
Attribute_Definition: Baseline-subtracted measurement
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -68.104
Range_Domain_Maximum: 1338.55

Attribute:

Attribute_Label: allpeaks
Attribute_Definition: Sum of all fit peaks
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0384413
Range_Domain_Maximum: 1349.73

Attribute:

Attribute_Label: residual
Attribute_Definition: Residual error in fitting (i.e. difference between raw and fit)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -86.5541000000001
Range_Domain_Maximum: 157.191955

Attribute:

Attribute_Label: peak1
Attribute_Definition: Intensity of peak number 1
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 1347.84

Attribute:

Attribute_Label: peak2
Attribute_Definition: Intensity of peak number 2. No data shown as -99999
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00400054
Range_Domain_Maximum: 1066.47

Attribute:

Attribute_Label: peak3
Attribute_Definition: Intensity of peak number 3. No data shown as -99999
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 316.081

Attribute:

Attribute_Label: peak4
Attribute_Definition: Intensity of peak number 4. No data shown as -99999
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00034528
Range_Domain_Maximum: 81.6269

Data for Uranium-Lead Geochronology, Carbon and Sulfur Stable Isotopes, and Raman Spectroscopy from Graphite Creek, Alaska

Metadata: