Organic geochemistry data of bulk sediments from the Escanaba Trough, off the coast of Northern California, USA, from May-June 2022.

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Hope L. Ianiri
Originator: Nancy G. Prouty
Originator: Amy Gartman
Publication_Date: 20250218
Title:

Organic geochemistry data of bulk sediments from the Escanaba Trough, off the coast of Northern California, USA, from May-June 2022.

Geospatial_Data_Presentation_Form: comma-delimited text
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P13XVXQC

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/P13XVXQC
Larger_Work_Citation:

Citation_Information:

Originator: Hope L. Ianiri
Originator: Nancy G. Prouty
Originator: Pamela L. Campbell
Originator: Amy Gartman
Originator: Katlin B. Adamczyk
Originator: Jaycee J. Favela
Publication_Date: 2025
Title:

Sedimentary organic geochemistry data from Escanaba Trough, off the coast of northern California, collected May-June 2022.

Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P13XVXQC

Publication_Information:

Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA
Publisher: U.S. Geological Survey

Other_Citation_Details:

Suggested Citation: Ianiri, H.L., Prouty, N.G., Campbell, P.L., Gartman, A., Adamczyk, K.B., and Favela, J.J., 2025, Sedimentary organic geochemistry data from Escanaba Trough, off the coast of northern California, collected May-June 2022: U.S. Geological Survey data release, https://doi.org/10.5066/P13XVXQC.

Online_Linkage: https://doi.org/10.5066/P13XVXQC

Description:

Abstract:

Bulk organic geochemistry data were determined on one to five cm subsamples of sediment push cores collected from the Escanaba Trough during May to June 2022. These data include percent total organic carbon (percent TOC ), total nitrogen (percent TN), carbon to nitrogen ratios (C/N), stable carbon isotope ratios (d13C), stable nitrogen isotope ratios (d15N), radiocarbon values (D14C), and grain size (mean phi). Location information (for example , latitude, longitude, and depth) is also reported.

Purpose:

Data were obtained to assess organic carbon storage, reactivity, and cycling within sediments of the Escanaba Trough, a hydrothermal spreading center which contains critical minerals. This work aids our understanding of the geochemistry of marine mineral host sediments and hydrothermal vent processes throughout the global ocean.

Supplemental_Information:

Additional information about the field activity or activities from which these data were derived is available online at:
https:// https://cmgds.marine.usgs.gov/fan_info.php?fan=2022-621-FA
Escanaba Trough: Exploring the Seafloor and Oceanic Footprints is an interagency effort involving the National Oceanic and Atmospheric Administration, the U.S. Geological Survey, and the Bureau of Ocean Energy Management. Funding is acknowledged from NOAA Ocean Exploration via its Ocean Exploration Fiscal Year 2019 Funding Opportunity and through the National Oceanographic Partnership Program (NOPP), from the USGS Coastal and Marine Hazards and Resources Enhanced Funding Opportunities, and from the Bureau of Ocean Energy Management through Interagency Agreement M19PG00021 with the United States Geological Survey.
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: 20220531
Ending_Date: 20220611

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: -127.53618710
East_Bounding_Coordinate: -127.44714953
North_Bounding_Coordinate: 41.08222461
South_Bounding_Coordinate: 40.69569198

Keywords:

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation

Theme:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Nonliving resources
Theme_Keyword: Mineral resources
Theme_Keyword: Physical/Chemical features
Theme_Keyword: Substrate

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: push coring
Theme_Keyword: light stable isotope analysis
Theme_Keyword: carbon-14 analysis
Theme_Keyword: subsampling
Theme_Keyword: geochemistry
Theme_Keyword: marine geology

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: petroleum resources
Theme_Keyword: carbon cycle
Theme_Keyword: seep and vent ecosystems
Theme_Keyword: chemical analysis
Theme_Keyword: sediment geochemistry

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:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:6696de49d34ecb78f609f77a

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Pacific Ocean

Place:

Place_Keyword_Thesaurus: NGA GEOnet Names Server (GNS)
Place_Keyword: Escanaba Trough

Access_Constraints: No access constraints
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 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:

Colin Carney and Dyke Andreason at the University of California, Santa Cruz Stable Isotope Laboratory measured ratios of stable isotopes of carbon 13/12 and nitrogen 15/14, total organic carbon, and total nitrogen. Roberta Hansman and Kathy Elder at NOSAMS (National Ocean Sciences Accelerator Mass Spectrometry) measured ratios of carbon 14/12.

Native_Data_Set_Environment:

Geochemical data are tabulated in comma separated variable (CSV) format.

Cross_Reference:

Citation_Information:

Originator: Hope L. Ianiri
Originator: Pamela L. Campbell
Originator: Amy Gartman
Originator: Nancy G. Prouty
Publication_Date: 2025
Title:

Characterizing sedimentary organic carbon in a hydrothermal spreading center, the Escanaba Trough

Other_Citation_Details:

Ianiri, H.L., Campbell, P., Gartman, A., and Prouty, N.G., 2025, Characterizing sedimentary organic carbon in a hydrothermal spreading center, the Escanaba Trough: Chemical Geology, https://doi.org/10.1016/j.chemgeo.2025.122679

Online_Linkage: https://doi.org/10.1016/j.chemgeo.2025.122679

Cross_Reference:

Citation_Information:

Originator: Minze Stuvier
Originator: Henry A. Polach
Publication_Date: 1977
Title: Discussion Reporting of 14C Data
Other_Citation_Details:

Stuiver, M., Polach, H.A., 1977. Discussion Reporting of 14C Data. Radiocarbon 19, 355-363.

Online_Linkage: https://doi.org/10.1017/S0033822200003672

Cross_Reference:

Citation_Information:

Originator: J. L. Morton
Originator: Robert A. Zierenberg
Originator: Carol A. Reiss
Publication_Date: 1994
Title:

Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore northern California

Other_Citation_Details:

Morton, J.L., Zierenberg, R.A., Reiss, C.A., 1994. Geologic, hydrothermal, and biologic studies at Escanaba Trough: an introduction, in: Geologic, Hydrothermal, and Biologic Studies at Escanaba Trough, Gorda Ridge, Offshore Northern California. U.S. Geological Survey.

Online_Linkage:

Cross_Reference:

Citation_Information:

Originator: David. A. Clague
Originator: Robert A. Zierenberg
Originator: Jennifer B. Paduan
Originator: David W. Caress
Originator: Brian L. Cousens
Originator: Brian M. Dreyer
Originator: Alice S. Davis
Originator: James McClain
Originator: Stephanie L. Ross
Publication_Date: 2022
Title:

Emplacement and impacts of lava flows and intrusions on the sediment-buried Escanaba Segment of the Gorda mid-ocean ridge

Other_Citation_Details:

Clague, D.A., Zierenberg, R.A., Paduan, J.B., Caress, D.W., Cousens, B.L., Dreyer, B.M., Davis, A.S., McClain, J., Ross, S.L., 2022. Emplacement and impacts of lava flows and intrusions on the sediment-buried Escanaba Segment of the Gorda mid-ocean ridge. Journal of Volcanology and Geothermal Research 432, 107701.

Online_Linkage:

https://www.sciencedirect.com/science/article/pii/S0377027322002323

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Analytical precision of stable isotope ratios relative to internationally calibrated in-house reference materials (Vienna PeeDee Belemnite for d13C and air for d15N). was less than 0.1 per mil for d13C values and 0.2 per mil for d15N values. Precision of total organic carbon was 2.5 micrograms carbon, which corresponds to less than 0.06 percent based on the amounts analyzed. Precision of total nitrogen was less than 0.5 microgram nitrogen, which corresponds to less than 0.003 percent based on the amounts analyzed. 14C measurements at NOSAMS are checked for accuracy via the primary standard NBS Oxalic Acid I (NIST-SRM-4990). Every group of samples processed includes an appropriate blank, analyzed concurrently. Error in D14C values was less than 1.5 per mil.

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. Some samples were not analyzed for radiocarbon or grain size. Users are advised to read the rest of the metadata record carefully for additional details.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The horizontal accuracy for each sample was obtained from the ROV's Ultra Short Baseline Positioning System (USBL) navigation after calibration to the CASIUS (Calibration of Attitude Sensors In USBL Systems) calibration system. Accuracy for this depth is approximately 10-20 m.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

The vertical accuracy was determined using multiple DVLs (Doppler Velocity Loggers) on the ROV, which are accurate to less than 1 m.

Lineage:

Process_Step:

Process_Description:

SEDIMENT COLLECTION. Samples were collected aboard the R/V Thomas Thompson via push coring using the ROV Jason. Once recovered shipboard, pore waters were extracted via rhizon samplers, cores were subsectioned into one to five cm slices, the exterior sediment which was in contact with the core liner was removed, and remaining sediment was stored frozen in pre-combusted glass jars.

Process_Date: 20220611

Process_Step:

Process_Description:

RATIOS OF STABLE ISOTOPES OF CARBON 13/12 (d13C), NITROGEN (d15N), TOTAL ORGANIC CARBON, and TOTAL NITROGEN (C:N): Dried and homogenized sediment was analyzed for TOC, TN, d13C, and d15N values using a CE Instruments NC2500 elemental analyzer (EA) coupled to a Thermo Scientific DELTAplus XP isotope ratio mass spectrometer (IRMS) via a Thermo Scientific Conflo III at the University of California at Santa Cruz Stable Isotope Lab. Inorganic carbonates were removed from the samples analyzed for d13C/percent TOC via direct addition of 400 uL of sulfurous acid. Stable isotope ratios were corrected for size, drift, and source stretching effects.

Process_Date: 20240301
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Colin Carney
Contact_Organization:

Stable Isotope Lab at the University of California at Santa Cruz

Contact_Position: Associate Specialist
Contact_Address:

Address_Type: Mailing
Address: 1156 High Street, E&MS Bldg C512
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95064

Contact_Voice_Telephone: 831-459-5751
Contact_Electronic_Mail_Address: cpcarney@ucsc.edu

Process_Step:

Process_Description:

RADIOCARBON ANALYSES: Dried and homogenized sediment was analyzed for D14C ratios via accelerator mass spectrometry (AMS) using a custom built continuous flow AMS system at the National Ocean Sciences AMS (NOSAMS). Bulk sediment samples were acidified to remove inorganic carbon prior to analysis via addition of 1.2M HCl.

Process_Date: 20221201
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Roberta Hansman
Contact_Organization: NOSAMS

Contact_Position: Research Specialist, Staff Chemist
Contact_Address:

Address_Type: mailing and physical
Address: 266 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543

Contact_Voice_Telephone: 508-289-2332
Contact_Electronic_Mail_Address: nosams@whoi.edu

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: 69

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.00000001
Longitude_Resolution: 0.0000001
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS84
Semi-major_Axis: 6378137.0000
Denominator_of_Flattening_Ratio: 298.2572

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: EscanabaTrough_organicgeochem_bulk.csv
Entity_Type_Definition: Table containing bulk organic geochemistry data.
Entity_Type_Definition_Source: producer defined

Attribute:

Attribute_Label: Cruise_ID
Attribute_Definition:

Lists the alphanumeric cruise identifier for the expedition during which the sample was collected.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: TN403
Enumerated_Domain_Value_Definition:

Cruise identification affiliated with Field Activity 2022-621-FA

Enumerated_Domain_Value_Definition_Source: producer defined

Attribute:

Attribute_Label: Sample_ID
Attribute_Definition: Name of sample
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Unrepresentable_Domain:

The sample names include a dive number (J2, denoting Jason2, followed by a number), push core number (PC, denoting push core, followed by a number) and the sediment depth horizon (X-Y).

Attribute:

Attribute_Label: Latitude
Attribute_Definition: Latitude of the sample in decimal degrees
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 40.69569198
Range_Domain_Maximum: 41.08222461
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: 0.00000001

Attribute:

Attribute_Label: Longitude
Attribute_Definition: Longitude of sample in decimal degrees
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -127.5361871
Range_Domain_Maximum: -127.4471495
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: 0.0000001

Attribute:

Attribute_Label: Water_depth_m
Attribute_Definition: Water depth in meters at which the sample was collected.
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3222
Range_Domain_Maximum: 3285
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: Location
Attribute_Definition: Location where the sample was collected
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Central Hill
Enumerated_Domain_Value_Definition: Text descriptor of sampling site as defined in the literature
Enumerated_Domain_Value_Definition_Source: Morton and others (1994), Clague and others (2022)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Edifice Rex West
Enumerated_Domain_Value_Definition: Text descriptor of sampling site as defined in the literature
Enumerated_Domain_Value_Definition_Source: Morton and others (1994), Clague and others (2022)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Edifice Rex East
Enumerated_Domain_Value_Definition: Text descriptor of sampling site as defined in the literature
Enumerated_Domain_Value_Definition_Source: Morton and others (1994), Clague and others (2022)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SESCA S3A
Enumerated_Domain_Value_Definition: Text descriptor of sampling site as defined in the literature
Enumerated_Domain_Value_Definition_Source: Morton and others (1994), Clague and others (2022)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SESCA Waypoint 2 S2A
Enumerated_Domain_Value_Definition: Text descriptor of sampling site as defined in the literature
Enumerated_Domain_Value_Definition_Source: Morton and others (1994), Clague and others (2022)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: MESCA
Enumerated_Domain_Value_Definition: Text descriptor of sampling site as defined in the literature
Enumerated_Domain_Value_Definition_Source: Morton and others (1994), Clague and others (2022)

Attribute:

Attribute_Label: sediment_depth_top_cm
Attribute_Definition:

top depth of core subsample. Ex: a sediment core slice from 0-1 cm would have a top depth of 0 centimeters and a bottom depth of 1 centimeter.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 20
Attribute_Units_of_Measure: centimeters
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: sediment_depth_bottom_cm
Attribute_Definition:

bottom depth of core subsample. Ex: a sediment core slice from 0-1 cm would have a top depth of 0 centimeters and a bottom depth of 1 centimeter.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 22
Attribute_Units_of_Measure: centimeters
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: TOC_percent
Attribute_Definition:

percent total organic carbon: weight percent of total sediment which is organic carbon.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.26
Range_Domain_Maximum: 1.75
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: TN_percent
Attribute_Definition:

percent total organic nitrogen: weight percent of total sediment which is organic nitrogen.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 0.22
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: CN
Attribute_Definition:

atomic ratio of total organic carbon to total nitrogen. Calculated as C/N atomic = C:N (wt:wt) * 14.0067 micrograms N / 12.0107 micrograms C.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 7.9
Range_Domain_Maximum: 16.8
Attribute_Units_of_Measure: unitless
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: d13C
Attribute_Definition:

ratio of stable carbon 13/12 isotopes of sedimentary organic carbon after removal of inorganic carbon.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -25.6
Range_Domain_Maximum: -21.4
Attribute_Units_of_Measure: standard per mil notation
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: d15N
Attribute_Definition:

ratio of stable nitrogen 15/14 isotopes of sedimentary nitrogen.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.85
Range_Domain_Maximum: 9.48
Attribute_Units_of_Measure: standard per mil notation
Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: D14C
Attribute_Definition:

ratio of stable carbon 14/12 isotopes of sedimentary organic carbon. D14C is defined as in Stuiver and Pollach (1977) as the relative difference between the absolute international standard (base year 1950) and sample activity corrected for age and d13C. The value is age corrected to account for decay that took place between collection (or death) of the sample and the time of sample measurement so that measurements of the same sample made years apart will produce the same calculated D14C result. -9999 indicates sample was not analyzed for radiocarbon.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -741.9
Range_Domain_Maximum: -303.7
Attribute_Units_of_Measure: standard per mil notation
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: D14C_err
Attribute_Definition:

error associated with D14C values. An internal statistical error is calculated using the total number of 14C counts (n) measured for each target and an external error is calculated from the reproducibility of multiple exposures for a given target. The ratio of carbon 14/12 isotopes of a sample was measured 10 separate times over the course of a run. The final reported error is the larger of the internal or external error, propagated with errors from the normalizing standards and blank subtraction. -9999 indicates sample was not analyzed for radiocarbon.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.2
Range_Domain_Maximum: 2.2
Attribute_Units_of_Measure: standard per mil notation
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: OS-number
Attribute_Definition: NOSAMS accession number
Attribute_Definition_Source: NOSAMS
Attribute_Domain_Values:

Unrepresentable_Domain:

Identification number assigned by NOSAMS to each radiocarbon measurement made.

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 a single csv file (EscanabaTrough_organicgeochemistry_bulk.csv).

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: Microsoft Excel Version 2308 Build 16731.20716 Click-to-Run
Format_Information_Content: csv file
File_Decompression_Technique: No compression applied
Transfer_Size: 0.0364

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/668f0246d34e4f2ebb745682

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/668f0246d34e4f2ebb745682

Network_Resource_Name: https://doi.org/10.5066/P13XVXQC

Access_Instructions:

Data and metadata can be downloaded using the Network_Resource_Name links. The first link is a direct link to download a zipped file of data and metadata. The second link points to a landing page with metadata and data. The third link points to the landing page for the entire data release.

Fees: None.

Technical_Prerequisites:

These data can be viewed with Microsoft Excel or any text reading software.

Metadata_Reference_Information:

Metadata_Date: 20250218
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

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_P13XVXQC/EscanabaTrough_organicgeochem_bulk.html>