Sediment porewater nutrient data 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: Katlin B. Adamczyk
Originator: Jaycee J. Favela
Originator: Amy Gartman
Originator: Nancy G. Prouty
Publication_Date: 20250218
Title:

Sediment porewater nutrient data 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., Campbell, P.L., Gartman, A., Prouty, N.G., 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:

Nutrients were measured from porewaters of sediment within the Escanaba Trough, a hydrothermal spreading center. Location information (latitude, longitude, and depth) is also reported.

Purpose:

Data were obtained as part of a project to assess the geochemistry of Escanaba Trough sediments, 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
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
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.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20220531
Ending_Date: 20220611

Currentness_Reference: Ground condition at time samples 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: 41.08223904
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: 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: nutrient measurements
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:6696d303d34ecb78f609f6e6

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

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: 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 was 5 percent for all analytes. Results not determined due to a chemical interference with other components of the porewater are reported as -9999 while results below the detection limit are reported as -8888. The detection limits were as follows: PO4: 0.1, Si(OH)4: 1.0, NO2: 0.1, NO2_plus_NO3: 0.2, NH4: 0.2

Logical_Consistency_Report:

The measured value of NO2 plus NO3 could not be greater than the measured value of NO2 alone.

Completeness_Report:

Dataset is considered complete for the information presented as described in the abstract. Not ever sample has data for every nutrient as some nutrient concentrations were below the limit of detection. 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:

POREWATER COLLECTION. Samples were collected via push coring using the ROV Jason and R/V Thomas Thompson. Once recovered shipboard, pore waters were extracted via rhizon samplers with an inline filter pore size 0.15 micrometers attached to a syringe. Pore waters were transferred to centrifuge tubes and stored frozen until analysis.

Process_Date: 20220611

Process_Step:

Process_Description:

MEASUREMENT OF POREWATER NUTRIENTS: Nitrite, nitrate plus nitrite, phosphate, silicic acid, and ammonium were measured via flow injection analysis using a Lachet Instruments QuikChem 8500 Series 2 Flow Injection Analysis System.

Process_Date: 20240301
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Ken Marchus
Contact_Organization:

Analytical Lab of the University of California, Santa Barbara Marine Science Institute

Contact_Position: Lab Manager
Contact_Address:

Address_Type: Mailing
Address:

Analytical Lab, Building 520 Room 1011, University of California, Santa Barbara

City: Santa Barbara
State_or_Province: CA
Postal_Code: 93106

Contact_Voice_Telephone: 805-893-3802
Contact_Electronic_Mail_Address: k_a_m@ucsb.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: 241

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_nutrients.csv
Entity_Type_Definition: Table of nutrient 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) and 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 sample in decimal degrees
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 40.69569198
Range_Domain_Maximum: 41.08223904
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: 3290
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: SESCA Unnamed & North 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: 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: 0.0
Range_Domain_Maximum: 24.5
Attribute_Units_of_Measure: centimeters
Attribute_Measurement_Resolution: 0.1

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: P04_uM
Attribute_Definition:

concentration of phosphate in pore waters. A value of -8888 indicates concentration was below detection limit.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.3
Range_Domain_Maximum: 22.0
Attribute_Units_of_Measure: micromolar
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: Si_OH4_uM
Attribute_Definition: concentration of silicic acid in pore waters
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 131
Range_Domain_Maximum: 595
Attribute_Units_of_Measure: micromolar
Attribute_Measurement_Resolution: 1.0

Attribute:

Attribute_Label: NO2_uM
Attribute_Definition:

concentration of nitrite in pore waters. A value of -9999 indicates concentration was not determined and a value of -8888 indicates concentration was below detection limit.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.1
Range_Domain_Maximum: 21.9
Attribute_Units_of_Measure: micromolar
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: NO2_plus_NO3_uM
Attribute_Definition:

concentration of nitrite and nitrate in pore waters. A value of -9999 indicates concentration was not determined and a value of -8888 indicates concentration was below detection limit.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.4
Range_Domain_Maximum: 58.8
Attribute_Units_of_Measure: micromolar
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: NH4_uM
Attribute_Definition:

concentration of ammonium in pore waters. A value of -8888 indicates concentration was below detection limit.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.2
Range_Domain_Maximum: 2121.0
Attribute_Units_of_Measure: micromolar
Attribute_Measurement_Resolution: 0.1

Attribute:

Attribute_Label: NO3_uM
Attribute_Definition:

concentration of nitrate in pore waters. Calculated as nitrite + nitrate concentration (attribute NO2_plus_NO3) minus nitrite concentration (attribute NO2). A value of -9999 indicates concentration was not determined and a value of -8888 indicates concentration was below detection limit.

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.1
Range_Domain_Maximum: 54.8
Attribute_Units_of_Measure: micromolar
Attribute_Measurement_Resolution: 0.1

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_nutrients.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: 0.048

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/6696d303d34ecb78f609f6e6

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/6696d303d34ecb78f609f6e6

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_nutrients.html>