X-ray diffraction data for heat treated samples of hydrothermal minerals from seamounts within the Tuvalu Exclusive Economic Zone

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Kira Mizell
Publication_Date: 20230125
Title:
X-ray diffraction data for heat treated samples of hydrothermal minerals from seamounts within the Tuvalu Exclusive Economic Zone
Geospatial_Data_Presentation_Form: comma-delimited text
Series_Information:
Series_Name: data release
Issue_Identification: DOI: 10.5066/P95CIHSU
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/P95CIHSU
Larger_Work_Citation:
Citation_Information:
Originator: Kira Mizell
Publication_Date: 2023
Title:
Major and trace element geochemistry and mineralogy of ferromanganese crusts from seamounts within the Tuvalu Exclusive Economic Zone
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P95CIHSU
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/P95CIHSU
Description:
Abstract:
A sample of hydrothermally mineralized foraminifera ooze (D28A) was collected via dredge from a seamount within the Tuvalu Exclusive Economic Zone in the Pacific Ocean during cruise RR1310 funded by the National Science Foundation aboard the R/V Roger Revelle in 2013. USGS scientists requested these ferromanganese crust samples from the Oregon State University Marine and Geology Repository where they had been archived. Ferromanganese crust samples were sent to USGS for subsampling and x-ray diffraction analyses. Powder x-ray diffraction data for three layer-fractions of the hydrothermal sample are provided here. Measurements were made after heating to 115 C for 48 hours to test the stability of the phyllomanganate mineral phase. Location information for the sample is included in each Attribute Definition of this metadata file, as well as in the geochemical data table (Tuvalu_RR1310_FeMn_geochem_data.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:
Samples analyzed for this data release were collected on a cruise funded by National Science Foundation grant #1154070. All metadata associated withcruise RR1310 is available upon request from the Oregon State University Marine and Geology Repository (http://osu-mgr.org).
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: 20130722
Ending_Date: 20220906
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: 179.869
East_Bounding_Coordinate: 179.871
North_Bounding_Coordinate: -11.331
South_Bounding_Coordinate: -11.329
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_Keyword: Assessments
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: dredge sampling
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_Keyword: chemical 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_Keyword: Global Ocean Mineral Resources
Theme_Keyword: mineralogical analysis
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:63b65086d34e92aad3cacaf0
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Pacific Ocean
Place:
Place_Keyword_Thesaurus: NGA GEOnet Names Server (GNS)
Place_Keyword: Tuvalu
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 intermittently 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. The horizontal accuracy was determined with the ship's GPS navigation, which is accurate to less than 5 m.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The singular value for water depth for each sample was calculated from shipboard dredge log records to account for ship-based depth soundings, the length of dredge wire out, movement by the ship, approximate seamount slope, and multiple bites of the dredge along each dredge track in order to maximize location accuracy. A formal accuracy assessment of the vertical positional information in the dataset has not been conducted.
Lineage:
Process_Step:
Process_Description:
USGS scientists requested these ferromanganese crust samples from the Oregon State University Marine and Geology Repository where they had been archived. Ferromanganese crust samples were sent to USGS for subsampling and mineralogical analyses.
Process_Date: 20160926
Process_Step:
Process_Description:
At USGS, individual layers were sampled from the hydrothermal sample using a ceramic knife and then ground using an agate mortar and pestle to approximately 75 micrometers. Samples were then placed in crucibles and heated in an oven to 115 C for 48 hours.
Process_Date: 20170501
Process_Step:
Process_Description:
After cooling from the previous heat step, powdered samples were backloaded and tamped into sample holders and run in a Panalytical XÕPert3 x-ray diffractometer (XRD; https://www.malvernpanalytical.com/) with CuK-alpha radiation and graphite monochromator. Measurements were taken with the following scan parameters: step size of 0.017 degrees two-theta between 5 degrees and 70 degrees two-theta, power of 40 kilovolts and 45 milliamps, scan rate of 60 seconds per step, a sample holder rotational speed of 0.03 degrees per second, and averaged triplicate scans at three different stage wobble angles (-1, 0, and 1 degree).
Source_Used_Citation_Abbreviation: samples
Process_Date: 20181101
Process_Step:
Process_Description:
Results from the diffraction analyses were combined into a comma-delimited text values document (Tuvalu_RR1310_FeMn_115C XRD_RawData.csv).
Source_Used_Citation_Abbreviation: results
Process_Date: 20220905
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: Tuvalu_RR1310_FeMn_115C XRD_RawData.csv
Entity_Type_Definition:
Comma-delimited file containing results from x-ray diffraction analyses of ferromanganese crusts. Location information for the samples are 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 dredge number followed by a hyphenated sample number, then an L followed by a number and a stratigraphic location (lower, middle, upper) to explain specific layers that were analyzed.
Entity_Type_Definition_Source: Producer defined
Attribute:
Attribute_Label: Position
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: D28A-01_L1_LOWER
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 D28A-01_L1_LOWER is -11.330 N, 179.870 E, and 2842 m water depth
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 13.0000
Range_Domain_Maximum: 682.9668
Attribute_Units_of_Measure: counts
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: D28A-01_L2_MIDDLE
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 D28A-01_L2_MIDDLE is -11.330 N, 179.870 E, and 2842 m water depth
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 9.1451
Range_Domain_Maximum: 1268.3867
Attribute_Units_of_Measure: counts
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: D28A-01_L3_UPPER
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 D28A-01_L3_UPPER is -11.330 N, 179.870 E, and 2842 m water depth
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 13.8953
Range_Domain_Maximum: 364.3586
Attribute_Units_of_Measure: counts
Attribute_Measurement_Resolution: 0.0001
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, 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
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: Microsoft Excel 16.16.17 for Mac
Format_Information_Content: File contains table in .csv format
File_Decompression_Technique: No compression applied
Transfer_Size: 0.12485
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://www.sciencebase.gov/catalog/file/get/63b65086d34e92aad3cacaf0
Network_Resource_Name:
https://www.sciencebase.gov/catalog/item/63b65086d34e92aad3cacaf0
Network_Resource_Name: https://doi.org/10.5066/P95CIHSU
Access_Instructions:
Data 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 reader.
Metadata_Reference_Information:
Metadata_Date: 20230125
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_P95CIHSU/Tuvalu_RR1310_FeMn_115C_XRD_metadata.html>
Generated by mp version 2.9.51 on Thu Jan 26 17:28:07 2023