Photographs of gravity core sections and push cores from the Escanaba Trough vent field, Gorda Ridge

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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: Katlin Bowman Adamczyk
Originator: Amy Gartman
Originator: Jaycee Favela
Originator: Jacob Tidwell
Publication_Date: 20250317
Title:

Photographs of gravity core sections and push cores from the Escanaba Trough vent field, Gorda Ridge

Geospatial_Data_Presentation_Form: comma-delimited text
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P13B46QX

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/P13B46QX
Online_Linkage:

https://www.sciencebase.gov/catalog/item/67004643d34e80be174aeaab

Larger_Work_Citation:

Citation_Information:

Originator: Katlin Bowman Adamczyk
Originator: Amy Gartman
Originator: Jaycee Favela
Originator: Jacob Tidwell
Publication_Date: 2025
Title:

Computed tomography (CT) scans, photographs, geochemistry, grain-size and total carbon analysis, X-ray fluorescence (XRF) scans, X-ray diffraction (XRD), magnetic susceptibility, and gamma-ray bulk density data of gravity cores and push cores from the Escanaba Trough (Gorda Ridge)

Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P13B46QX

Publication_Information:

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

Other_Citation_Details:

Suggested Citation: Adamczyk, K., Gartman, A., Favela, J., and Tidwell, J., 2025 Computed tomography (CT) scans, photographs, geochemistry, grain-size and total carbon analysis, X-ray fluorescence (XRF) scans, X-ray diffraction (XRD), magnetic susceptibility, and gamma-ray bulk density data of gravity cores and push cores from the Escanaba Trough (Gorda Ridge): U.S. Geological Survey data release, https://doi.org/10.5066/P13B46QX

Online_Linkage: https://doi.org/10.5066/P13B46QX
Online_Linkage:

https://www.sciencebase.gov/catalog/item/67004442d34e80be174aea95

Description:

Abstract:

This portion of the data release presents linescan images (photographs) from push cores and gravity core sections collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean. These data were collected in 2022 (USGS Field Activity 2022-621-FA). Images were obtained from 18 gravity core sections and 39 push cores at 50-micron (200 pixel per cm) resolution. Color images in 16-bit TIFF format are provided for each core segment, along with proprietary metadata files containing image scaling information. Push core images contain an additional TIFF image with a centimeter scale ruler (denoted with _R in filename).

Purpose:

Images were obtained to characterize sediment in gravity cores and push cores. These data are intended for science researchers, students, policy makers, and the general public.

Supplemental_Information:

Additional information about the field activity or activities from which these data were derived is available online at:
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.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20220801
Ending_Date: 20220808

Currentness_Reference: Time data were compiled to completion of the last process step

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -127.5362
East_Bounding_Coordinate: -127.4076
North_Bounding_Coordinate: 41.1632
South_Bounding_Coordinate: 40.6957

Keywords:

Theme:

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

Theme:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Nonliving Resources
Theme_Keyword: Mineral Resources

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: push coring
Theme_Keyword: gravity
Theme_Keyword: marine geology
Theme_Keyword: core analysis

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:67004643d34e80be174aeaab

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
Place_Keyword: Gorda Ridge

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

Browse_Graphic:

Browse_Graphic_File_Name:

https://www.sciencebase.gov/catalog/file/get/67004643d34e80be174aeaab?name= J2-1426-PC13_linescan.jpg&allowOpen=true

Browse_Graphic_File_Description: Linescan photograph of a push core.
Browse_Graphic_File_Type: JPEG

Data_Set_Credit:

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.

Native_Data_Set_Environment: Windows 64, MSCL 7.9, Geotek Imaging 3.7

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Prior to imaging, the camera was calibrated to a white tile and an 18 percent grey calibration card. Digital scale core depths are not corrected for sediment compaction and are relative to the surface of the sediment. No formal attribute accuracy tests were conducted.

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. 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 locations of push core samples were determined using ROV Jason’s ultra-short baseline (USBL) navigation. Accuracy for this depth is approximately 6-26 m. The locations of gravity core samples were determined using the R/V Thomas G. Thompson’s GPS navigation, which is accurate to less than 5 m. A formal accuracy assessment of the horizontal positional information in the dataset has not been conducted.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

For push core samples, the vertical accuracy was determined with ROV Jason’s altimeter, which is accurate to less than 1 m. For gravity core samples, the vertical accuracy was determined with the R/V Thomas G. Thompson’s multibeam bathymetry system. No formal positional accuracy tests were conducted.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Adamczyk, Katlin
Originator: Gartman, Amy
Originator: Favela, Jaycee
Originator: Tidwell, Jacob
Publication_Date: 2025
Title:

Location and water depth for gravity cores and push cores from the Escanaba Trough (Gorda Ridge)

Geospatial_Data_Presentation_Form: comma-delimited text
Publication_Information:

Publication_Place: online
Publisher: U.S. Geological Survey

Online_Linkage:

https://www.sciencebase.gov/catalog/item/679282a3d34e88f5864c49e9

Type_of_Source_Media: U.S. Geological Survey data release
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20220524
Ending_Date: 20220613

Source_Currentness_Reference: ground condition at time samples were collected

Source_Citation_Abbreviation: TN403_CoreLocations
Source_Contribution:

Latitude, longitude, and water depth information for gravity cores and push cores from this same data release

Process_Step:

Process_Description:

Push core and gravity core samples were collected on the R/V Thomas G. Thompson between May 24, 2022, and June 13, 2022, during the TN403 Escanaba Trough expedition, which was led and staffed by USGS employees. Push cores were pushed into sediment at 37 locations by ROV Jason’s manipulator arm in water depths between 3201 and 3301 meters. Gravity cores were collected using a gravity corer at 7 locations in water depths between 3209 and 3304 meters. Gravity cores greater than 60 cm in length were cut into sections onboard the ship and labeled ‘X’ (0-60 cm), ‘Y’ (60-120 cm), and ‘Z’ (>120 cm). All cores were stored upright and refrigerated until return to shore.

Process_Date: 20220613

Process_Step:

Process_Description:

Cores were split into "working" and "archive" halves in the lab. Sediment surfaces were cleaned and smoothed on the "archive" halves of split cores. Cores were loaded onto the track of a Geotek Multi Sensor Core Logger (MSCL) equipped with a Geotek Geoscan-III linescan camera and Geotek Imaging 3.7 software. Prior to imaging, the camera was calibrated to a white tile and an 18% grey calibration card.

Process_Date: 20220808
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Katlin Adamczyk
Contact_Organization: USGS

Contact_Position: Physical Scientist
Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060

Contact_Voice_Telephone: 831-460-7420
Contact_Electronic_Mail_Address: kadamczyk@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: 57

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: .0001
Longitude_Resolution: .0001
Geographic_Coordinate_Units: Decimal Degrees

Geodetic_Model:

Horizontal_Datum_Name: WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: zip files containing linescan images
Entity_Type_Definition:

Each zip file contains 1 TIFF file and their respective software-proprietary XML files. Zip files for push cores contain an additional TIFF image with a centimeter scale ruler. The name of each zip file corresponds to the core id. TN403_CoreLocations contains the latitude, longitude, and water depth for each core id.

Entity_Type_Definition_Source: producer defined

Attribute:

Attribute_Label:

GC01-X_linescan, GC01-Y_linescan, GC01-Z_linescan, GC03-X_linescan, GC03-Y_linescan, GC03-Z_linescan, GC04-X_linescan, GC04-Y_linescan, GC04-Z_linescan, GC05-Z_linescan, GC06-X_linescan, GC06-Y_linescan, GC06-Z_linescan, GC08-X_linescan, GC08-Y_linescan, GC08-Z_linescan, GC09-Y_linescan, GC09-Z_linescan, J2-1418-PC03_linescan, J2-1418-PC04_linescan, J2-1418-PC06_linescan, J2-1418-PC08_linescan, J2-1418-PC12_linescan, J2-1418-PC15_linescan, J2-1419-PC01_linescanp, J2-1419-PC02_linescan, J2-1419-PC05_linescan, J2-1419-PC08_linescan, J2-1419-PC11_linescan, J2-1419-PC14_linescan, 2-1420-PC01_linescan, J2-1420-PC02_linescan, J2-1420-PC05_linescan, J2-1420-PC08_linescan, J2-1420-PC11_linescan, J2-1420-PC14_linescan, J2-1421-PC01_linescan, J2-1421-PC02_linescan, J2-1421-PC05_linescan, J2-1422-PC01_linescan, J2-1422-PC04_linescan, J2-1422-PC07_linescan, J2-1422-PC10_linescan, J2-1422-PC13_linescan, J2-1424-PC01_linscan, J2-1424-PC04_linescan, J2-1424-PC07_linescan, J2-1424-PC10_linescan, J2-1424-PC13_linescan, J2-1425-PC01_linescan, J2-1426-PC01_linescan, J2-1426-PC04_linescan, J2-1426-PC07_linescan, J2-1426-PC10_linescan, J2-1426-PC13_linescan.

Attribute_Definition:

Folders each containing one or two linescan TIFF image representing each core section and their respective Geotek software-proprietary XML files. The TIFF files ending in “_R” include a digital scale on the left side of the image. The Geotek software-proprietary XML files contain the following attributes and example attribute values are provided: <geotek-image><image-type>giTIFImage</image-type> <coreID>J2-GC01-X</coreID> <section-number>1</section-number> <image-number>1</image-number> <physical-width>9.30</physical-width> <physical-height>68.40</physical-height> <physical-top>150.00</physical-top> <pixels-per-scan>5</pixels-per-scan> <pixels-per-CM>200</pixels-per-CM> <horizontal-resolution>200</horizontal-resolution> <exposure-time-ms>40</exposure-time-ms> <calibration-aperture>3.02</calibration-aperture> <image-aperture>3.43</image-aperture> <red-high-calibration>18.0</red-high-calibration> <green-high-calibration>18.0</green-high-calibration> <blue-high-calibration>18.0</blue-high-calibration> <red-low-calibration>0.0</red-low-calibration> <green-low-calibration>0.0</green-low-calibration> <blue-low-calibration>0.0</blue-low-calibration> <pixel-width>1860</pixel-width> <scan-lines>13680</scan-lines> <filename>IM001_01.tif</filename> <geotek-camera-lighting version="2" mode="visible"> <visible-lighting-data> <bank-two> <bank2cluster1>111</bank2cluster1> <bank2cluster2>111</bank2cluster2> <bank2cluster3>111</bank2cluster3> <bank2cluster4>111</bank2cluster4> <bank2cluster5>111</bank2cluster5> </bank-two> <bank-one> <bank1cluster1>111</bank1cluster1> <bank1cluster2>111</bank1cluster2> <bank1cluster3>111</bank1cluster3> <bank1cluster4>111</bank1cluster4> <bank1cluster5>111</bank1cluster5> </bank-one></visible-lighting-data> </geotek-camera-lighting> <convg-x-red>0</convg-x-red> <convg-x-green>0</convg-x-green> <convg-x-blue>0</convg-x-blue> <convg-y-red>0</convg-y-red> <convg-y-green>4</convg-y-green> <convg-y-blue>8</convg-y-blue> <is-a-sync-scan-image>0</is-a-sync-scan-image> </geotek-image>

Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Unrepresentable_Domain:

These Geotek software-proprietary XML files contain information on linescan image acquisition settings and image scaling. The values in the example provided may be different for each scan. Please contact the PCMSC data coordinator for more information on the contents of these XML files.

Overview_Description:

Entity_and_Attribute_Overview:

Zip files contain TIFF image files and Geotek software-propietary metadata files

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:

Linescan images are available in TIFF image format and provided along with FGDC-compliant metadata.

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: TIFF
Format_Information_Content:

Downloadable zip files, ranging in size from 20 MB to 310 MB, contain linescan TIFF (.tif) images and associated software-proprietary metadata files (.xml). Zip file names correspond to the core id. For example ‘J2-1421-PC01_linescan.zip’ contains linescan TIFF images from push core J2-1421-PC01. TN403_CoreLocations contains the latitude, longitude, and water depth for each core id.

File_Decompression_Technique: Zip
Transfer_Size: 8387

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/67004643d34e80be174aeaab

Network_Resource_Name: https://doi.org/10.5066/P13B46QX

Access_Instructions:

Data and metadata can be downloaded using the Network_Resource_Name links. The first link points to a landing page with metadata and data. The second link points to the landing page for the entire data release.

Fees: None.

Metadata_Reference_Information:

Metadata_Date: 20250317
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_P13B46QX/TN403_LineScan_Metadata.html>