X-ray diffraction data (XRD) for sediment subsamples from push cores from Loki's Castle and Favne vent fields, Mohns 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: Amy Gartman
Publication_Date: 20240110
Title:

X-ray diffraction data (XRD) for sediment subsamples from push cores from Loki's Castle and Favne vent fields, Mohns Ridge

Geospatial_Data_Presentation_Form: comma-delimited text
Series_Information:

Series_Name: data release
Issue_Identification: DOI: 10.5066/P96D02FG

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/P96D02FG
Online_Linkage:

https://www.sciencebase.gov/catalog/item/645fc3b0d34ec179a83a6af9

Larger_Work_Citation:

Citation_Information:

Originator: Amy Gartman
Originator: Manda V. Au
Originator: Denise Payan
Publication_Date: 2023
Title:

Computed tomography (CT) scans, photographs, X-ray fluorescence (XRF) scans, geochemistry, X-ray diffraction (XRD), and gamma-ray bulk density data of push cores from Loki's Castle and Fauna vent fields, Mohns Ridge

Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P96D02FG

Publication_Information:

Publication_Place:

Pacific Coastal and Marine Science Center, Santa Cruz, California

Publisher: U.S. Geological Survey

Other_Citation_Details:

Suggested Citation: Gartman, A., Au, M.V., and Payan, D., 2024, Computed tomography (CT) scans, photographs, X-ray fluorescence (XRF) scans, geochemistry, X-ray diffraction (XRD), and gamma-ray bulk density data of push cores from Loki's Castle and Favne vent fields, Mohns Ridge: U.S. Geological Survey data release, https://doi.org/10.5066/P96D02FG.

Online_Linkage: https://doi.org/10.5066/P96D02FG

Description:

Abstract:

This portion of the data release presents X-ray diffractograms of sediment subsamples from push cores collected from Loki's Castle and Favne vent fields, on the Mohns Ridge, in the Norwegian Sea. These data were collected in 2018 and 2019 (USGS Field Activity 2018-691-DD and 2019-624-FA). Location information for the sample is included in each Attribute Definition of this metadata file, as well as in the geochemical data table (LokisMohns_marine_mineral_geochemistry.csv) of this multi-table data release.

Purpose:

These data serve to expand the knowledge and statistics for deep ocean marine mineral occurrences and composition within the global ocean.

Supplemental_Information:

Funding for this research is acknowledged from the U.S. Geological Survey Coastal and Marine Hazards and Resources Program, through the U.S. Geological Survey Pacific Coastal and Marine Science Center.
Additional information about the USGS field activities from which these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2018-691-DD https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-624-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: 20180718
Ending_Date: 20220510

Currentness_Reference: Date that the last process step was completed

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: 3.8318
East_Bounding_Coordinate: 8.1661
North_Bounding_Coordinate: 73.5678
South_Bounding_Coordinate: 72.7556

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: Material Resources
Theme_Keyword: Mineral Resources
Theme_Keyword: Physical/Chemical Features

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: core analysis
Theme_Keyword: X-ray diffraction
Theme_Keyword: metallic mineral resources
Theme_Keyword: marine geology

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: sediment geochemistry
Theme_Keyword: mineral resources

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: Global Ocean Mineral Resources
Theme_Keyword: mineralogical analysis

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:645fc3b0d34ec179a83a6af9

Place:

Place_Keyword_Thesaurus: NGA GEOnet Names Server (GNS)
Place_Keyword: Norwegian Sea

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Loki's Castle vent field
Place_Keyword: Favne vent field
Place_Keyword: Mohns Ridge

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 as the originator 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: Mac OSX 11.6.1, Microsoft Excel 16.47.1 for Mac

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

X-ray diffraction data were tested for accuracy by analyzing a powdered quartz reference sample to verify the one hundred intensity peak at 26.6 degree two-theta. When the quartz peak was in the proper position, we infer that other measured peak positions in the sample are accurate. Peak intensities are considered semiquantitative since no quantitative standards were analyzed for this dataset.

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:

A formal accuracy assessment of the horizontal positional information in the dataset has not been conducted.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

A formal accuracy assessment of the vertical positional information in the dataset has not been conducted.

Lineage:

Process_Step:

Process_Description:

Samples are push cores and were pushed into sediment by the ROV’s manipulator arm. Once recovered shipboard cores were frozen (2018-691-DD) or refrigerated (2019-624-FA) until return to shore. Samples were donated from Field Activity 2018-691-DD, and no USGS attendees were present. Amy Gartman attended 2019-624-FA.

Process_Date: 20190704

Process_Step:

Process_Description:

Back in the USGS lab, subsamples were collected from relevant stratigraphic regions of the core.

Process_Date: 20190704
Source_Produced_Citation_Abbreviation: samples

Process_Step:

Process_Description:

Powdered samples were backloaded and tamped into sample holders and run in a Panalytical X’Pert3 x-ray diffractometer (XRD; https://www.malvernpanalytical.com/) with CuK-alpha radiation and graphite monochromator. Measurements were taken at intervals of 0.2 degrees 2-theta between 4 degrees and 70 degrees 2-theta at 40 kilovolts and 45 milliamps.

Source_Used_Citation_Abbreviation: samples
Process_Date: 20190704
Source_Produced_Citation_Abbreviation: results

Process_Step:

Process_Description:

Results from the diffraction analyses were combined into a comma-delimited text values document (LokisFavne_XRD_rawdata.csv).

Source_Used_Citation_Abbreviation: results
Process_Date: 20230512

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: 3823

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.001
Longitude_Resolution: 0.001
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: LokisFavne_XRD_rawdata.csv
Entity_Type_Definition:

Comma-delimited file containing results from x-ray diffraction analyses of sediment subsamples from push cores. Location information for the samples is included in each Attribute Definition of this metadata file and not the data table. The header for each column of diffraction data is a sample name, which follows the scheme of ROV number followed by an underscore and then the sample number followed by an underscore and the centimeter range that the interval spans as counted from the surface of the sample.

Entity_Type_Definition_Source: Producer defined

Attribute:

Attribute_Label: Position(Cu2theta)
Attribute_Definition:

The two-theta angle at which the x-ray diffractometer measured the X-ray diffraction of the powdered sample

Attribute_Definition_Source: instrument defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5.0084
Range_Domain_Maximum: 69.9824
Attribute_Units_of_Measure: degrees
Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: ROV12PC02_3.5-9cm
Attribute_Definition:

X-ray diffraction intensity value at the two-theta angle listed in the corresponding row in the Position attribute. The location for sample ROV12PC02_3.5-9cm is 72.7561 N, 3.8328 E and 3036 m water depth.