Metadata: Identification_Information: Citation: Citation_Information: Originator: Nancy G. Prouty Originator: Pamela Campbell Swarzenski Publication_Date: 2019 Title: Biomarker analysis of cold seeps along the United States Atlantic Margin Geospatial_Data_Presentation_Form: comma-delimited text Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9JHGO8O Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9JHGO8O Online_Linkage: https://www.sciencebase.gov/catalog/file/get/5c4f3988e4b0708288f78d7a Description: Abstract: Results of lipid biomarker concentration and compound specific isotopes analyzed from authigenic carbonates and surrounding sediment collected from Baltimore and Norfolk seep fields along the United States Atlantic Margin are presented in csv format. Samples were collected by the U.S. Geological Survey and Duke University between 2012 and 2015 using remotely operated vehicles (ROVs). Geochemical analysis was performed using gas chromatography (GC) and GC-combustion isotope ratio mass spectrometry (GC-C-IRMS). Purpose: The purpose of making these measurements was to identify what microbial communities are driving anaerobic oxidation of methane at the Norfolk and Baltimore seep fields. The identification and distribution of these microbial communities represents a key component to understanding the global methane cycle including both short- and long-term methane storage. Supplemental_Information: Additional information about the USGS field activities from which some of these data were derived is available online at: http://cmgds.marine.usgs.gov/fan_info.php?fan=F0112MC http://cmgds.marine.usgs.gov/fan_info.php?fan=B0413MC Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20120825 Ending_Date: 20150721 Currentness_Reference: Ground condition at time data were collected. Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -74.4929 East_Bounding_Coordinate: -73.7722 North_Bounding_Coordinate: 38.0977 South_Bounding_Coordinate: 36.8654 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:5c4f3988e4b0708288f78d7a Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: environment Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Assessments Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: chemical analysis Theme_Keyword: geochemistry Theme_Keyword: marine chemistry Theme_Keyword: gas chromatography Theme_Keyword: Archaea Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: geochemistry Theme_Keyword: animal-sediment interactions Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Theme_Keyword: cold seep Theme_Keyword: light stable isotopic analysis Theme_Keyword: sediment geochemistry Theme_Keyword: methanogens Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Atlantic Ocean Place: Place_Keyword_Thesaurus: NGA GEOnet Names Server (GNS) Place_Keyword: Atlantic Ocean Place_Keyword: Baltimore Canyon Place_Keyword: Norfolk Canyon Access_Constraints: None Use_Constraints: USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey and Atmospheric Administration (NOAA), and Bureau of Ocean Energy Management (BOEM) as the originator(s) of the dataset and in products derived from these data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Data_Set_Credit: We wish to thank C. Van Dover (Duke University) for donating samples collected on board the R/V Atlantis, as well as A. Lam, B. Tipple, and M. Baker (USGS) and J. Herszage (UC Davis) for their analytical assistance. Native_Data_Set_Environment: Mac OSX 10.11.6, Microsoft Excel 14.7.1 for Mac Cross_Reference: Citation_Information: Originator: Nancy G. Prouty Originator: Diana Sahy Originator: Carolyn D. Ruppel Originator: E. Brendan Roark Originator: Dan Condon Originator: Sandra Brook Originator: Steve W. Ross Originator: Amanda W.J. Demopoulos Publication_Date: 2016 Title: Earth and Planetary Science Letters Other_Citation_Details: Prouty, N.G., Sahy, D., Ruppel, C.D., Roark, E.B., Condon, D., Brooke S., Ross, S.W., and Demopoulos, A.W.J., 2016, Insights into methane dynamics from analysis of authigenic carbonates and chemosynthetic mussels at newly-discovered Atlantic Margin seeps: Earth and Planetary Science Letters, v. 449, p., 332-344. Online_Linkage: https://doi.org/10.1016/j.epsl.2016.05.023 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: All geochemistry data were calibrated against known standards. Logical_Consistency_Report: No formal logical accuracy tests were conducted. Completeness_Report: Dataset is considered complete for the information presented, as described in the abstract. Gaps in sequential sample ID numbers are common, as not all stations had samples collected or analyzed. An empty cell in the spreadsheet indicates that lanosterol was not calculated for that sample. BDL indicates concentration below detection limit. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: A formal accuracy assessment of the vertical positional information in the data set has not been conducted. Lineage: Process_Step: Process_Description: Carbonate and sediment samples from pushcores were collected from ROV operations. Samples were stored frozen. The biomarker composition of the authigenic carbonate and sediment samples was determined by gas chromatography-mass spectrometry (GC-MS) at the USGS Organic Geochemistry laboratory in Santa Cruz, California. The samples were subsequently extracted using the Dionex ASE with a mixture of dichloromethane and methanol (9:1; v:v). Prior to extraction, internal standards were added (5-α androstane, 5α- 3β androstanol, ortho-terphenyl, and nonadecanoic acid). The total lipid extracts were passed though funnels containing sodium sulfate to remove excess water followed by saponification with 6% KOH (w/v) in methanol at 70°C for 3 hours. After cooling, the neutral fractions were extracted 3–5 times with hexane until the extracts turned colorless. To obtain fatty acids, the residuals were treated with 10% HCl to pH ~ 2 and extracted 3 times with hexane. The neutral fractions were separated by column chromatography into compound classes: (1) hydrocarbons (n-hexane), (2) aromatics (toluene:hexane) and (3) alcohols (ethyl acetate:hexane, methanol). The alcohols were converted to trimethylsiloxyl derivatives by bis (trimethylsilyl) trifluoroacetamide (BSTFA with 1% TMCS) heated at 60 °C for 1 h prior to GC–MS analysis. Fatty acids were converted to methyl esters by drying and subjecting the fraction to 14% BF3-methanol in a screw cap vial at 60 °C for 2 h. Compound specific isotope analysis (CSIA) on select biomarkers in the carbonate and sediment samples was determined by GC-combustion isotope ratio mass spectrometry (GC-C-IRMS). Carbon isotopic compositions of sterols and n-alkanes were measured at the Stable Isotope Facility at University of California, Davis using a Thermo GC-C-IRMS system composed of a Trace GC Ultra gas chromatograph coupled to a Delta V Advantage IRMS through a GC-C-III interface with compound identification support for the CSIA laboratory provided by a Varian CP3800 gas chromatograph coupled to a Saturn 2200 ion trap MS/MS. CSIA composition of the fatty acids was performed at the Marine Organic and Isotope Geochemistry lab at the University of Miami by GC-C-IRMS. Samples were dissolved in hexane and injected manually in splitless mode into a Thermo GC-C-IRMS system (Trace GC 1310 coupled to an Isolink II combustion interface, Conflo IV interface, and MAT 253 isotope ratio mass spectrometer). Results from the all lab analyses were combined into a comma-delimited text document (USAM_MDAC_Biomarker.csv) for this data release. Process_Date: 20181215 Process_Step: Process_Description: Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. Process_Date: 20201019 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 28 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00001 Longitude_Resolution: 0.00001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: USAM_MDAC_Biomarker.csv Entity_Type_Definition: Table containing results from analyses of organic biomarker composition of authigenic carbonate and sediment samples. 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: Sample IDs that begin with AT indicate samples collected by Duke University on the R/V Atlantis and include the ship’s cruise number (e.g. AT29-04), dive number (e.g. 4808), and sequential sample number. Sample IDs that begin with RB indicate samples collected by the USGS on the R/V Ron Brown and include the cruise year (e.g. 2013), dive number (e.g. 682), and sequential sample number. Sample IDs that begin with NF indicate samples collected by the USGS on the R/V Nancy Foster and include the cruise year (e.g. 2012), and a sequential number assigned by the vessel. Gaps in sequential numbers are common, as not all stations had samples collected or analyzed. Attribute: Attribute_Label: Lab ID Attribute_Definition: The unique laboratory identification of a particular sample. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Unrepresentable_Domain: The Lab ID contains the year of analysis in two digits (e.g., 18=2018) followed by a sample number in a series. Gaps in sequential numbers are common, and not all samples contain analytical description. Attribute: Attribute_Label: Location Attribute_Definition: Lists whether the sample was collected from either Baltimore Canyon or Norfolk Canyon. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Baltimore Canyon Enumerated_Domain_Value_Definition: Name of canyon where sample was collected Enumerated_Domain_Value_Definition_Source: producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Norfolk Canyon Enumerated_Domain_Value_Definition: Name of canyon where sample was collected Enumerated_Domain_Value_Definition_Source: producer defined 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: 8/25/12 Range_Domain_Maximum: 7/21/15 Attribute_Units_of_Measure: month/day/year Attribute: Attribute_Label: Depth Attribute_Definition: Depth in meters of sample collection Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 385 Range_Domain_Maximum: 1617 Attribute_Units_of_Measure: meters (m) Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Latitude Attribute_Definition: Latitude Attribute_Definition_Source: based on ship and ROV navigation systems Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 36.8654 Range_Domain_Maximum: 38.0977 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.0001 Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude Attribute_Definition_Source: based on ship and ROV navigation systems Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -74.4929 Range_Domain_Maximum: -73.7722 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.0001 Attribute: Attribute_Label: Sample type Attribute_Definition: Explains the sample type Attribute_Definition_Source: producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: mussel sediment Enumerated_Domain_Value_Definition: sediment collected from mussel habitat Enumerated_Domain_Value_Definition_Source: producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: authigenic carbonate Enumerated_Domain_Value_Definition: homogenized authigenic carbonate rock Enumerated_Domain_Value_Definition_Source: producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: bacterial mat sediment Enumerated_Domain_Value_Definition: sediment collected from bacterial mat habitat Enumerated_Domain_Value_Definition_Source: producer defined Attribute: Attribute_Label: Depth interval Attribute_Definition: Explains depth interval in sediment core for sample collection. n/a in the spreadsheet indicates not applicable. Attribute_Definition_Source: producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0-2 Enumerated_Domain_Value_Definition: sediment core depth interval at 0-2 cm Enumerated_Domain_Value_Definition_Source: producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2-5 Enumerated_Domain_Value_Definition: sediment core depth interval at 2-5 cm Enumerated_Domain_Value_Definition_Source: producer defined Attribute: Attribute_Label: Percent Organic Carbon Attribute_Definition: Sediment percent organic carbon as measured on an elemental analyzer. An empty cell in the spreadsheet indicates that percent carbon was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.29 Range_Domain_Maximum: 5.14 Attribute_Units_of_Measure: molar percent (%) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: coprostanol Attribute_Definition: Concentration of the sterol coprostanol normalized to dry weight. An empty cell in the spreadsheet indicates that coprostanol was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.04 Range_Domain_Maximum: 0.97 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: epicoprostanol Attribute_Definition: Concentration of the sterol epicoprostanol normalized to dry weight. An empty cell in the spreadsheet indicates that epicoprostanol was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: null Range_Domain_Maximum: null Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: desmosterol Attribute_Definition: Concentration of the sterol desmosterol normalized to dry weight. An empty cell in the spreadsheet indicates that desmosterol was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.09 Range_Domain_Maximum: 0.25 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: 5-B coprostanone Attribute_Definition: Concentration of the sterol 5-B-coprostanone normalized to dry weight. An empty cell in the spreadsheet indicates that 5-B-coprostanone was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: null Range_Domain_Maximum: null Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: cholesterol Attribute_Definition: Concentration of the sterol cholesterol normalized to dry weight. An empty cell in the spreadsheet indicates that cholesterol was not calculated for that sample. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.05 Range_Domain_Maximum: 15.30 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: cholestane Attribute_Definition: Concentration of the sterol cholestane normalized to dry weight. An empty cell in the spreadsheet indicates that cholestane was not calculated for that sample. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.20 Range_Domain_Maximum: 4.36 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: lanosterol Attribute_Definition: Concentration of the sterol lanosterol normalized to dry weight. An empty cell in the spreadsheet indicates that lanosterol was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: null Range_Domain_Maximum: null Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: cholestanol Attribute_Definition: Concentration of the sterol cholestanol normalized to dry weight. An empty cell in the spreadsheet indicates that cholestanol was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: null Range_Domain_Maximum: null Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: ergosterol Attribute_Definition: Concentration of the sterol ergosterol normalized to dry weight. An empty cell in the spreadsheet indicates that ergosterol was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.12 Range_Domain_Maximum: 6.72 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: 4-methylcholest-diene Attribute_Definition: Concentration of the sterol 4-methylcholest-diene normalized to dry weight. An empty cell in the spreadsheet indicates that 4-methylcholest-diene was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: null Range_Domain_Maximum: null Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: campesterol Attribute_Definition: Concentration of the sterol campesterol normalized to dry weight. An empty cell in the spreadsheet indicates that campesterol was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.70 Range_Domain_Maximum: 2.70 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: stigmasterol Attribute_Definition: Concentration of the sterol stigmasterol normalized to dry weight. An empty cell in the spreadsheet indicates that stigmasterol was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.06 Range_Domain_Maximum: 0.53 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: B-sitosterol Attribute_Definition: Concentration of the sterol B-sitosterol normalized to dry weight. An empty cell in the spreadsheet indicates that B-sitosterol was not calculated for that sample. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.22 Range_Domain_Maximum: 4.50 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: stigmastanol Attribute_Definition: Concentration of the sterol stigmastanol normalized to dry weight. An empty cell in the spreadsheet indicates that stigmastanol was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.47 Range_Domain_Maximum: 1.46 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: archaeol Attribute_Definition: Concentration of the sterol archaeol normalized to dry weight. An empty cell in the spreadsheet indicates that archaeol was not calculated for that sample. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.11 Range_Domain_Maximum: 2.13 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: sn-2-hydroxyarchaeol Attribute_Definition: Concentration of the sterol sn-2-hydroxyarchaeol normalized to dry weight. An empty cell in the spreadsheet indicates that sn-2-hydroxyarchaeol was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.32 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: crocetane Attribute_Definition: Concentration of the alkane crocetane normalized to dry weight. An empty cell in the spreadsheet indicates that crocetane was not calculated for that sample. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.001 Range_Domain_Maximum: 0.200 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.001 Attribute: Attribute_Label: PMI Attribute_Definition: concentration of the alkane pentamethylicosane (PMI) normalized to dry weight. An empty cell in the spreadsheet indicates that PMI was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.019 Range_Domain_Maximum: 0.120 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.001 Attribute: Attribute_Label: C14:0 Attribute_Definition: Concentration of the fatty acid C14:0 normalized to dry weight. An empty cell in the spreadsheet indicates that C14:0 was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.05 Range_Domain_Maximum: 0.90 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C14:1 Attribute_Definition: Concentration of the fatty acid C14:1 normalized to dry weight. An empty cell in the spreadsheet indicates that C14:1 was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.20 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: anteiso-C15:0 Attribute_Definition: Concentration of the fatty acid anteiso-C15:0 normalized to dry weight. An empty cell in the spreadsheet indicates that anteiso-C15:0 was not calculated for that sample. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.47 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: iso-C15:0 Attribute_Definition: Concentration of the fatty acid iso-C15:0 normalized to dry weight. An empty cell in the spreadsheet indicates that iso-C15:0 was not calculated for that sample. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 1.33 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C15:0 Attribute_Definition: Concentration of the fatty acid C15:0 normalized to dry weight. An empty cell in the spreadsheet indicates that C15:0 was not calculated for that sample. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.27 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C16:1 omega 5 Attribute_Definition: Concentration of the fatty acid C16:1 omega 5 normalized to dry weight. An empty cell in the spreadsheet indicates that C16:1 omega 5 was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 11.47 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C16:1 Attribute_Definition: Concentration of the fatty acid C16:1 normalized to dry weight. An empty cell in the spreadsheet indicates that C16:1 was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 1.30 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C16:0 Attribute_Definition: Concentration of the fatty acid C16:0 normalized to dry weight. An empty cell in the spreadsheet indicates that C16:0 was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.08 Range_Domain_Maximum: 5.16 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: anteiso-C17:0 Attribute_Definition: Concentration of the fatty acid anteiso-C17:0 normalized to dry weight. An empty cell in the spreadsheet indicates that anteiso-C17:0 was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.37 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C17:1 Attribute_Definition: Concentration of the fatty acid C17:1 normalized to dry weight. An empty cell in the spreadsheet indicates that C17:1 was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.18 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C17:0 Attribute_Definition: Concentration of the fatty acid C17:0 normalized to dry weight. An empty cell in the spreadsheet indicates that C17:0 was not calculated for that sample. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.28 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C18:1* Attribute_Definition: Concentration of the fatty acid octadec-9-enoate/oleate (C18:1*) normalized to dry weight. An empty cell in the spreadsheet indicates that C18:1* was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.06 Range_Domain_Maximum: 0.86 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C18:1 Attribute_Definition: Concentration of the fatty acid octadec-11-enoate/oleate (C18:1) normalized to dry weight. An empty cell in the spreadsheet indicates that C18:1 was not calculated for that sample. BDL indicates concentration below detection limit. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.97 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C18:0 Attribute_Definition: Concentration of the fatty acid C18:0 normalized to dry weight. An empty cell in the spreadsheet indicates that C18:0 was not calculated for that sample. BDL indicates concentration below detection limit. Attribute_Definition_Source: standard reporting value in organic chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 7.58 Attribute_Units_of_Measure: microgram per gram dry weight Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: cholesterol 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). An empty cell in the spreadsheet indicates that cholesterol 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -66.75 Range_Domain_Maximum: -37.41 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: cholestanol 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). An empty cell in the spreadsheet indicates that cholestanol 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -77.97 Range_Domain_Maximum: -36.61 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: B-sitosterol 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). An empty cell in the spreadsheet indicates that B-sitosterol delta-C-13 was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -74.24 Range_Domain_Maximum: -35.26 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: archaeol 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). An empty cell in the spreadsheet indicates that archaeol 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -91.64 Range_Domain_Maximum: -58.36 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: sn-2-hydroxyarchaeol 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). An empty cell in the spreadsheet indicates that sn-2-hydroxyarchaeol 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -129.18 Range_Domain_Maximum: -80.33 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: crocetane 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). An empty cell in the spreadsheet indicates that crocetane 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -70.94 Range_Domain_Maximum: -26.39 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: PMI 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). An empty cell in the spreadsheet indicates that PMI 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -92.83 Range_Domain_Maximum: -29.87 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: PMI (II) 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). An empty cell in the spreadsheet indicates that PMI (II) 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -131.36 Range_Domain_Maximum: -120.62 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C14:0 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). An empty cell in the spreadsheet indicates that C14:0 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -53.02 Range_Domain_Maximum: -27.63 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C14:1 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). An empty cell in the spreadsheet indicates that C14:1 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -49.76 Range_Domain_Maximum: -26.27 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: anteiso C15 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). An empty cell in the spreadsheet indicates that C14:1 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -107.56 Range_Domain_Maximum: -29.66 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: iso C15 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). An empty cell in the spreadsheet indicates that iso-C15:0 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -105.87 Range_Domain_Maximum: -38.89 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C15:0 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). An empty cell in the spreadsheet indicates that C15:0 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -81.22 Range_Domain_Maximum: -26.11 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C16:0 compounda 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). An empty cell in the spreadsheet indicates that unidentified branched and/or unsaturated C16:0 compound a 13C 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -126.00 Range_Domain_Maximum: -25.06 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C16:0 compound b 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). An empty cell in the spreadsheet indicates that unidentified branched and/or unsaturated C16:0 compound b 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -123.65 Range_Domain_Maximum: -28.97 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C16:0 compound c 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). An empty cell in the spreadsheet indicates that unidentified branched and/or unsaturated C16:0 compound c 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -126.06 Range_Domain_Maximum: -59.60 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C16:0 compound d 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). An empty cell in the spreadsheet indicates that unidentified branched and/or unsaturated C16:0 compound d 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -126.97 Range_Domain_Maximum: -126.97 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C16:0 compound e 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). An empty cell in the spreadsheet indicates that unidentified branched and/or unsaturated C16:0 compound e 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -110.49 Range_Domain_Maximum: -110.49 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C16:1 omega 5 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). An empty cell in the spreadsheet indicates that C16:1 omega 5 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -104.92 Range_Domain_Maximum: -36.78 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C16:1 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). An empty cell in the spreadsheet indicates that C16:1 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -95.44 Range_Domain_Maximum: -37.33 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C16:0 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). An empty cell in the spreadsheet indicates that C16:0 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -48.54 Range_Domain_Maximum: -25.54 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: C18:0 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). An empty cell in the spreadsheet indicates that C18:0 13C:12C was not calculated for that sample. Attribute_Definition_Source: standard reporting value in isotope chemistry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -52.08 Range_Domain_Maximum: -28.51 Attribute_Units_of_Measure: parts per thousand (per mil) Attribute_Measurement_Resolution: 0.01 Overview_Description: Entity_and_Attribute_Overview: The first line of the csv file is a header line. Entity_and_Attribute_Detail_Citation: U.S. Geological Survey Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - ScienceBase Contact_Address: Address_Type: mailing and physical Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: These data are available in .csv format contained in a single file. Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: comma-delimited text Format_Version_Number: Excel 14.3.9 Format_Information_Content: File contains table in .csv format File_Decompression_Technique: No compression applied Transfer_Size: 0.01 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/5c4f3988e4b0708288f78d7a Network_Resource_Name: https://doi.org/10.5066/P9JHGO8O Access_Instructions: Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the zipped file of data and metadata. The second link points to a landing page with metadata and data. Fees: None. Technical_Prerequisites: These data can be viewed with Microsoft Excel or any text reader Metadata_Reference_Information: Metadata_Date: 20201019 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998