Entity_Type:
Entity_Type_Label: QCF_Geochemistry.csv
Entity_Type_Definition:
Table containing geochemical analyses of authigenic carbonates, pore fluid, and bivalves.
Entity_Type_Definition_Source: Producer defined.
Attribute:
Attribute_Label: Sample ID
Attribute_Definition: The unique sample identification of a particular sample
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Unrepresentable_Domain:
The unique Sample ID contains the station number and either a number or description of the sample in a collection series.
Attribute:
Attribute_Label: Sample Type
Attribute_Definition: Explains the sample type or sample material matrix
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: authigenic carbonate
Enumerated_Domain_Value_Definition: cement and groundmass of authigenic carbonate
Enumerated_Domain_Value_Definition_Source: producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: shell in authigenic carbonate
Enumerated_Domain_Value_Definition:
intact shell fragments embedded into the authigenic carbonate matrix
Enumerated_Domain_Value_Definition_Source: producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: pore fluid
Enumerated_Domain_Value_Definition: filtered pore fluid collected from piston cores
Enumerated_Domain_Value_Definition_Source: producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: mussel gill
Enumerated_Domain_Value_Definition: gill tissue from mussel specimen
Enumerated_Domain_Value_Definition_Source: producer defined
Attribute:
Attribute_Label: Station Number
Attribute_Definition: Station number listed as year-station number.
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Unrepresentable_Domain: Station number listed as year-station number.
Attribute:
Attribute_Label: Depth
Attribute_Definition:
Identifies either the depth range in meters or the exact depth in meters.
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 492
Range_Domain_Maximum: 1003
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: Date of Collection
Attribute_Definition:
Calendar date (month/day/year) when sample was collected in the field
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 7/7/2011
Range_Domain_Maximum: 9/28/2017
Attribute_Units_of_Measure: month/day/year
Attribute:
Attribute_Label: Latitude
Attribute_Definition: Latitude
Attribute_Definition_Source: based on ship navigation system
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 52.0185
Range_Domain_Maximum: 57.2007
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: Longitude
Attribute_Definition: Longitude
Attribute_Definition_Source: based on ship navigation system
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -136.3007
Range_Domain_Maximum: -131.4506
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: Calcium Carbonate
Attribute_Definition: percent calcium carbonate
Attribute_Definition_Source:
Mineral percentages were determined by multiplying unique peak intensities for each mineral in a sample by relative intensity factors. Empty cells in the spreadsheet are common, as calcium carbonate was not calculated for every sample.
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 6.92
Range_Domain_Maximum: 97.06
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: delta-C-13
Attribute_Definition:
delta-C-13 is a measure of the ratio of stable isotopes Carbon-13:Carbon-12, reported in parts per thousand (per mil). Empty cells in the spreadsheet are common, as 13C:12C was not calculated for every sample.
Attribute_Definition_Source: standard reporting value in isotope chemistry
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -48.82
Range_Domain_Maximum: -2.96
Attribute_Units_of_Measure: parts per thousand (per mil)
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: delta-O-18
Attribute_Definition:
delta-O-18 is a measure of the ratio of stable isotopes Oxygen-18:Oxygen-16, reported in parts per thousand (per mil). Empty cells in the spreadsheet are common, as 18O:16O was not calculated for every sample.
Attribute_Definition_Source: standard reporting value in isotope chemistry
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -6.89
Range_Domain_Maximum: 6.44
Attribute_Units_of_Measure: parts per thousand (per mil)
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: 87Sr:86Sr
Attribute_Definition:
a measure of the ratio of isotopes Strontium-87:Strontium-86. Empty cells in the spreadsheet are common, as 87Sr:86Sr was not calculated for every sample.
Attribute_Definition_Source: standard reporting value in isotope chemistry
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.70892
Range_Domain_Maximum: 0.70916
Attribute_Measurement_Resolution: 0.00001
Attribute:
Attribute_Label: delta-S-34
Attribute_Definition:
a measure of the ratio of stable isotopes Sulfur-34:Sulfur-32, reported in parts per thousand (per mil). Empty cells in the spreadsheet are common, as 34S:32S was not calculated for every sample.
Attribute_Definition_Source: standard reporting value in isotope chemistry
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -10.43
Range_Domain_Maximum: 0.84
Attribute_Units_of_Measure: parts per thousand (per mil)
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Uranium
Attribute_Definition:
concentration of Uranium in sample in parts per million (ppm). Empty cells in the spreadsheet are common, as Uranium concentration was not calculated for every sample.
Attribute_Definition_Source: standard value in analytical chemistry
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.9920
Range_Domain_Maximum: 5.6164
Attribute_Units_of_Measure: parts per million (ppm)
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: 232Th
Attribute_Definition:
Definition: concentration of Thorium-232 in sample in parts per million (ppm). Empty cells in the spreadsheet are common, as concentration of 232Th was not calculated for every sample.
Attribute_Definition_Source: standard value in isotope chemistry
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0901
Range_Domain_Maximum: 0.9030
Attribute_Units_of_Measure: parts per billion (ppb)
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: 230Th:232Th AR
Attribute_Definition:
Thorium-230:Thorium-232 Activity Ratio. Activity ratios corrected for hydride formation, tailing, fractionation, SEM-Faraday yield, and tracer isotopic composition. Empty cells in the spreadsheet are common, as 230Th:232Th AR was not calculated for every sample.
Attribute_Definition_Source: defined in Jaffey and others, 1971
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2.6363
Range_Domain_Maximum: 6.1814
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: 232Th:238U AR
Attribute_Definition:
Thorium-232:Uranium-238 Activity Ratio. Activity ratios corrected for hydride formation, tailing, fractionation, SEM-Faraday yield, and tracer isotopic composition. Empty cells in the spreadsheet are common, as 232Th:238U AR was not calculated for every sample.
Attribute_Definition_Source: defined in Jaffey and others, 1971
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0149
Range_Domain_Maximum: 0.0712
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: 232Th:238U AR (error)
Attribute_Definition:
Thorium-232:Uranium-238 Activity Ratio error reported as 2-sigma composition. Empty cells in the spreadsheet are common, as 232Th:238U AR (error) was not calculated for every sample.
Attribute_Definition_Source: defined in Jaffey and others, 1971
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.06
Range_Domain_Maximum: 0.21
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: 230Th:238U AR
Attribute_Definition:
Thorium-230:Uranium-238 Activity Ratio. Activity ratios corrected for hydride formation, tailing, fractionation, SEM-Faraday yield, and tracer isotopic composition. Empty cells in the spreadsheet are common, as 230Th:238U AR was not calculated for every sample.
Attribute_Definition_Source: defined in Jaffey and others, 1971
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0529
Range_Domain_Maximum: 0.2571
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: 230Th:238U AR (error)
Attribute_Definition:
Thorium-230:Uranium-238 Activity Ratio error reported as 2-sigma composition. Empty cells in the spreadsheet are common, as 230Th:238U AR (error) was not calculated for every sample.
Attribute_Definition_Source: defined in Jaffey and others, 1971
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.53
Range_Domain_Maximum: 0.86
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: 234U:238U AR
Attribute_Definition:
Uranium-234:Uranium-238 Activity Ratio. Activity ratios corrected for hydride formation, tailing, fractionation, SEM-Faraday yield, and tracer isotopic composition. Empty cells in the spreadsheet are common, as 234U:238U AR was not calculated for every sample.
Attribute_Definition_Source: defined in Jaffey and others, 1971
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.1268
Range_Domain_Maximum: 1.1383
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: 234U:238U AR (error)
Attribute_Definition:
Uranium-234:Uranium-238 Activity Ratio error reported as 2-sigma composition. Empty cells in the spreadsheet are common, as 234U:238U AR (error) was not calculated for every sample.
Attribute_Definition_Source: defined in Jaffey and others, 1971
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.21
Range_Domain_Maximum: 0.43
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: 230Th:238U AR corrected
Attribute_Definition:
Corrected using average measured detrital Uranium and Thorium isotopic compositions for the Norfolk Canyon [(232Th:238U) = 1.38, (230Th:238U) = 2.05 and (234U:238U) = 0.99, n=3)] and Baltimore Canyon [(232Th:238U) = 1.39, (230Th:238U) = 1.32 and (234U:238U) = 1.00, n=3)] sites with all uncertainties set at +/- 25 percent. Empty cells in the spreadsheet are common, as 230Th:238U AR corrected was not calculated for every sample.
Attribute_Definition_Source: produced defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0360
Range_Domain_Maximum: 0.1906
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: 230Th:238U AR corrected (error)
Attribute_Definition:
Corrected using average measured detrital Uranium and Thorium isotopic error reported as 2-sigma composition. Empty cells in the spreadsheet are common, as 230Th:238U AR corrected (error) was not calculated for every sample.
Attribute_Definition_Source: produced defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 13.76
Range_Domain_Maximum: 42.04
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: 234U:238U AR corrected
Attribute_Definition:
Corrected using average measured detrital Uranium and Thorium isotopic compositions for the Norfolk Canyon [(232Th:238U) = 1.38, (230Th:238U) = 2.05 and (234U:238U) = 0.99, n=3)] and Baltimore Canyon [(232Th:238U) = 1.39, (230Th:238U) = 1.32 and (234U:238U) = 1.00, n=3)] sites with all uncertainties set at +/- 25 percent. Empty cells in the spreadsheet are common, as 234U:238U AR corrected was not calculated for every sample.
Attribute_Definition_Source: produced defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.1337
Range_Domain_Maximum: 1.1398
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: 234U:238U AR corrected (error)
Attribute_Definition:
Corrected using average measured detrital Uranium and Thorium isotopic error reported as 2-sigma composition. Empty cells in the spreadsheet are common, as 234U:238U AR corrected (error) was not calculated for every sample.
Attribute_Definition_Source: produced defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.56
Range_Domain_Maximum: 2.31
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Rho 08-48
Attribute_Definition:
Rho 08-48 is the correlation coefficient between the 230Th:238U and 234U:238U activity ratios. Empty cells in the spreadsheet are common, as Rho 08-48 was not calculated for every sample.
Attribute_Definition_Source: produced defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.228
Range_Domain_Maximum: 0.326
Attribute_Measurement_Resolution: 0.001
Attribute:
Attribute_Label: Age (ka)
Attribute_Definition:
Uranium-Thorium derived age in thousands of years. Empty cells in the spreadsheet are common, as Age (ka) was not calculated for every sample.
Attribute_Definition_Source: produced defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3.50
Range_Domain_Maximum: 20.00
Attribute_Units_of_Measure: thousands of years
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Age error (ka)
Attribute_Definition:
Uranium-Thorium derived age error. Empty cells in the spreadsheet are common, as Age error (ka) was not calculated for every sample.
Attribute_Definition_Source: produced defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.02
Range_Domain_Maximum: 5.96
Attribute_Units_of_Measure: thousands of years
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: delta-N-15
Attribute_Definition:
delta-N-15 is a measure of the ratio of stable isotopes Nitrogen-15:Nitrogen-14, reported in parts per thousand (per mil). Empty cells in the spreadsheet are common, as 15N:14N was not calculated for every sample.
Attribute_Definition_Source: produced defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3.04
Range_Domain_Maximum: 4.60
Attribute_Units_of_Measure: thousands of years
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: chloride
Attribute_Definition:
Chloride concentration measured in pore fluid samples. Empty cells in the spreadsheet are common, as chloride was not calculated for every sample.
Attribute_Definition_Source: produced defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 541.06
Range_Domain_Maximum: 565.65
Attribute_Units_of_Measure: micromolar
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: sulfate
Attribute_Definition:
Sulfate concentration measured in pore fluid samples. Empty cells in the spreadsheet are common, as sulfate was not calculated for every sample.
Attribute_Definition_Source: produced defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.57
Range_Domain_Maximum: 28.03
Attribute_Units_of_Measure: micromolar
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: hydrogen isotope
Attribute_Definition:
Deuterium is a stable isotope of hydrogen. Empty cells in the spreadsheet are common, as deuterium was not calculated for every sample.
Attribute_Definition_Source: produced defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -10.51
Range_Domain_Maximum: 6.97
Attribute_Units_of_Measure: parts per thousand (per mil)
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Core depth
Attribute_Definition:
Depth below top of piston core for pore fluid sampling. Empty cells in the spreadsheet are common, as pore fluid samples were not every sample.
Attribute_Definition_Source: produced defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3
Range_Domain_Maximum: 187
Attribute_Units_of_Measure: centimeter
Attribute_Measurement_Resolution: 1