Metadata: Identification_Information: Citation: Citation_Information: Originator: A.A. Boggess Originator: B.J. Buczkowski Originator: J.D. Chaytor Publication_Date: 20210819 Title: Summary of analytical data for sediment cores from the New England Mud Patch collected on USGS Field Activity 2016-001-FA Edition: 1.0 Geospatial_Data_Presentation_Form: spreadsheet Series_Information: Series_Name: data release Issue_Identification: DOI: 10.5066/P9ZYK3PX Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Hazards and Resources Program Online_Linkage: https://doi.org/10.5066/P9ZYK3PX Online_Linkage: https://www.sciencebase.gov/catalog/item/60804620d34e8564d683624b Larger_Work_Citation: Citation_Information: Originator: A.A. Boggess Originator: B.J. Buczkowski Originator: J.D. Chaytor Publication_Date: 2021 Title: Sedimentological and geotechnical analyses of marine sediment cores from the New England Mud Patch Edition: 1.0 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested citation: Boggess, A.A., Buczkowski, B.J., and Chaytor, J.D., 2021, Sedimentological and geotechnical analyses of marine sediment cores from the New England Mud Patch: U.S. Geological Survey data release, https://doi.org/10.5066/P9ZYK3PX. Online_Linkage: https://doi.org/10.5066/P9ZYK3PX Online_Linkage: https://www.sciencebase.gov/catalog/item/604b8bc4d34eb120311b3800 Description: Abstract: Variability in sediment properties with depth and the thickness of individual sedimentary layers are critical determinants of seabed acoustic response. The New England Mud Patch (NEMP), located south of Cape Cod, is an unusual feature on the U.S. Continental Shelf in that it is composed of fine-grained sediment layers containing a relatively-homogeneous mix of sand, silt, and clay-sized particles bounded by more typical sandy shelf sediments. The unique characteristics and nature of this deposit is due to a derivation of sediments that have been transported to, and deposited in, a basal bowl-shaped depression since the last glacial maximum. Ninety-two piston, vibra-, and gravity cores with a maximum length of 8.2 meters were collected from across the New England Mud Patch during a 2-leg, 10-day cruise aboard the R/V Endeavor in the spring of 2016. Geologic characterization and analysis of a subset of the cores including grain size, CaCO3, mineral composition, and bulk index properties (undrained shear strength, water content, density, and porosity) of discrete samples was carried out at the USGS Woods Hole Coastal and Marine Science Center's (WHCMSC) Sediment Analysis Laboratory. This data release contains the results of these analyses, along with visual core descriptions and summary sheets for each core analyzed for this study. Purpose: The data gained through the analyses of cores collected from the New England Mud Patch help provide a comprehensive understanding of the nature and properties of the sediments found in this geographic location. The summary sheet for each individual core can be used as a quick reference for identifying the core's general geophysical properties. Supplemental_Information: Cores were collected on the 2016 R/V Endeavor cruise EN577 from April 19, 2016 to May 2, 2016. Information about this expedition, also known as USGS Field Activity 2016-001-FA, is available at https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-001-FA Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20160419 Ending_Date: 20160502 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.7979 East_Bounding_Coordinate: -70.4370 North_Bounding_Coordinate: 40.5952 South_Bounding_Coordinate: 40.3058 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: sediment samples Theme_Keyword: cores Theme_Keyword: piston cores Theme_Keyword: trigger cores Theme_Keyword: acoustic cores Theme_Keyword: vibracores Theme_Keyword: Cruise ID EN577 Theme_Keyword: WHSC Field Activity 2016-001-FA Theme_Keyword: R/V Endeavor Theme_Keyword: geophysical properties Theme_Keyword: organic carbon Theme_Keyword: calcium carbonate Theme_Keyword: grain density Theme_Keyword: grain porosity Theme_Keyword: grain size Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: geology Theme_Keyword: sedimentology Theme_Keyword: piston coring Theme_Keyword: gravity coring Theme_Keyword: vibracoring Theme_Keyword: core analysis Theme_Keyword: unconsolidated deposits Theme_Keyword: clay deposits Theme_Keyword: sand deposits Theme_Keyword: earth material properties Theme_Keyword: bulk density Theme_Keyword: soil moisture Theme_Keyword: porosity Theme_Keyword: Holocene Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:60804620d34e8564d683624b Place: Place_Keyword_Thesaurus: None Place_Keyword: New England Mud Patch Place_Keyword: NEMP Place_Keyword: Atlantic Place_Keyword: U.S. Continental Shelf Place_Keyword: Massachusetts Place_Keyword: Martha's Vineyard Place_Keyword: Seabed Experiment Area Access_Constraints: None. Use_Constraints: Not to be used for navigation. The public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jason Chaytor Contact_Organization: U.S. Geological Survey, Northeast Region Contact_Position: Research Geologist Contact_Address: Address_Type: mailing and physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: US Contact_Voice_Telephone: 508-457-2351 Contact_Electronic_Mail_Address: jchaytor@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/60804620d34e8564d683624b/?name=MudPatchCores_BrowseGraphic.png Browse_Graphic_File_Description: Browse image of the core collection locations and spatial extent of the study area Browse_Graphic_File_Type: PNG Native_Data_Set_Environment: Microsoft Windows 10 Enterprise Version 10.0.18363 (Build 18363) Cross_Reference: Citation_Information: Originator: Jason D. Chaytor Originator: Megan S. Ballard Originator: Brian J. Buczkowski Originator: John A. Goff Originator: Kevin M. Lee Originator: Allen H. Reed Originator: Allyson A. Boggess Publication_Date: 2021 Title: Measurements of Geologic Characteristics and Geophysical Properties of Sediments from the New England Mud Patch Edition: 1.0 Publication_Information: Publication_Place: Piscataway, NJ Publisher: IEEE Oceanic Engineering Society Other_Citation_Details: This journal article is the publication supported by this data release. Online_Linkage: https://doi.org/10.1109/JOE.2021.3101013 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Each type of analysis compiled into the summary sheets has its own respective method of quality assurance and quality control. The data was checked to ensure that the data results matched up with their respective depth intervals. Logical_Consistency_Report: Summary sheets are a compilation of multiple types of data. Logical consistency reports for each type of data in this dataset can be found in other items of the data release. For example, reports for bulk carbon and organics can be found in "Bulk organics and carbonate content of sediment cores from the New England Mud Patch collected on USGS Field Activity 2016-001-FA" within the larger work. Completeness_Report: Of the 98 cores collected during the R/V Endeavor EN577 cruise, 69 cores have summary spreadsheets of their data. No vibracores are included in this dataset because of the four analyses reflected in these summary sheets (bulk carbon content, moisture and grain density analysis, undrained vane shear strength, and grain size), only bulk carbon content analyses were performed on this core type. See "Bulk organics and carbonate content of sediment cores from the New England Mud Patch collected on USGS Field Activity 2016-001-FA" within the greater work for vibracore carbon content data. Lineage: Process_Step: Process_Description: Sediment cores were cut into sections on the research vessel and later split in half in the laboratory. The data collected for each core includes loss-on-ignition for bulk carbon content, moisture and grain density analysis, undrained vane shear strength, and grain size. In addition to being compiled by analysis type for other items within this data release, data were compiled into summary sheets for individual core ID's. Each summary sheet contains all available data from analyses that were performed on a particular core. Process_Date: 2021 Process_Step: Process_Description: Tweaked a thesaurus name (20211117). Process_Date: 20211117 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: EN577_[COREID]_SummarySheet.csv Entity_Type_Definition: Template for each of the spreadsheets in this dataset. Each attribute definition and description applies to all of the 68 comma-separated value spreadsheet files in this collection. Maximum and minimum values for each attribute represent the range of the entire dataset. Entity_Type_Definition_Source: Producer Defined Attribute: Attribute_Label: Depth (cm) Attribute_Definition: Top of the depth interval at which the core was sampled. All physical samples in this dataset were taken at a 1 centimeter interval. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 10 Range_Domain_Maximum: 410 Attribute_Units_of_Measure: centimeters Attribute: Attribute_Label: % Organic Matter Attribute_Definition: Weight percent of organic carbon in sample, measured with loss-on-ignition analysis. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Bulk carbon content analysis was not performed on this sample. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5.32 Range_Domain_Maximum: 5.94 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: %CaCO3 Attribute_Definition: Weight percent of calcium carbonate in sample, measured with loss-on-ignition analysis. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: No Data Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.84 Range_Domain_Maximum: 5.16 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Water Content (%) Attribute_Definition: Weight of water loss as a percentage of initial weight, measured using water content or moisture and density (MAD) analysis. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Water content analysis was not performed on this sample. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 34.15 Range_Domain_Maximum: 41.62 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Wet Bulk Density (g/cm3) Attribute_Definition: Density of wet sample, measured using water content or moisture and density (MAD) analysis. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Moisture and density (MAD) analysis was not performed on this sample Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.34 Range_Domain_Maximum: 1.72 Attribute_Units_of_Measure: grams per cubic centimeter Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Dry Bulk Density (g/cm3) Attribute_Definition: Density of dry sample, measured using water content or moisture and density (MAD) analysis. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Moisture and density (MAD) analysis was not performed on this sample Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.79 Range_Domain_Maximum: 1.13 Attribute: Attribute_Label: Porosity (plug) Attribute_Definition: Fraction of total initial sample volume occupied by pore water prior to drying process, measured using water content or moisture and density (MAD) analysis. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Moisture and density (MAD) analysis was not performed on this sample Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.55 Range_Domain_Maximum: 0.64 Attribute_Units_of_Measure: percent of 1 Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Porosity (Pyc) Attribute_Definition: Porosity of dry sample measured by pycnometer, not including salt precipitated during drying process. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Pycnometer density analysis was not performed on this sample. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: nan Range_Domain_Maximum: nan Attribute_Units_of_Measure: percent of 1 Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Grain Density Plug (g/cm3) Attribute_Definition: Density of solid materials (sediment grains) in initial sample prior to drying process, not including the dissolved salt in pore water, measured using water content or moisture and density (MAD) analysis. Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: No Data Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.75 Range_Domain_Maximum: 2.79 Attribute_Units_of_Measure: grams per cubic centimeter Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Grain Density Pyc (g/cm3) Attribute_Definition: Grain density of dry sample measured by pycnometer Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Pycnometer density analysis was not performed on this sample. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: nan Range_Domain_Maximum: nan Attribute_Units_of_Measure: grams per cubic entimeter Attribute: Attribute_Label: Su (kPa) Attribute_Definition: Shear strength of sediment, measured with a vane torque gauge and converted to kPa Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: No Data Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5.27 Range_Domain_Maximum: 22.29 Attribute_Units_of_Measure: kilopascals Attribute_Measurement_Resolution: 0.02 Attribute: Attribute_Label: Gravel % Attribute_Definition: Gravel content in percent dry weight of the sample (particles with nominal diameters greater than 2 mm; -1 Phi and larger) Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Grain size data was not performed on this sample. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 0.04 Attribute_Units_of_Measure: weight percent Attribute: Attribute_Label: Sand % Attribute_Definition: Sand content in percent dry weight of the sample (particles with nominal diameters less than 2 mm, but greater than or equal to 0.0625 mm; 0 Phi through 4 Phi). Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Grain size data was not performed on this sample. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 9.08 Range_Domain_Maximum: 30.53 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Silt % Attribute_Definition: Silt content in percent dry weight of the sample (particles with nominal diameters less than 0.0625 mm, but greater than or equal to 0.004 mm; 5 Phi through 8 Phi, inclusive). Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Grain size data was not performed on this sample. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 39.45 Range_Domain_Maximum: 68.02 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Clay % Attribute_Definition: Clay content in percent dry weight of the sample (particles with nominal diameters less than 0.004 mm; 9 Phi and smaller). Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Grain size data was not performed on this sample. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.22 Range_Domain_Maximum: 44.66 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Sediment Classification Attribute_Definition: Sediment description based on the classification scheme of the USGS East Coast Sediment Texture Database data dictionary Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Grain size data was not performed on this sample. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Unrepresentable_Domain: character string; see "Grain size analyses of sediment cores from the New England Mud Patch collected on USGS Field Activity 2016-001-FA" within the greater work for a list of sediment classifications present in the greater dataset. Attribute: Attribute_Label: Mean Phi Attribute_Definition: Average value in the grain size distribution in phi units Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Grain size data was not performed on this sample. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4.83 Range_Domain_Maximum: 7.25 Attribute_Units_of_Measure: phi Attribute: Attribute_Label: St. Dev Phi Attribute_Definition: Standard deviation (root mean square of the deviations) of the grain size distribution in phi units (sorting). Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: << empty cell >> Enumerated_Domain_Value_Definition: Grain size data was not performed on this sample. Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.68 Range_Domain_Maximum: 2.07 Attribute_Units_of_Measure: phi Attribute_Measurement_Resolution: 0.01 Overview_Description: Entity_and_Attribute_Overview: This dataset is comprised of 68 CSV spreadsheet files, each pertaining to an individual core. The naming convention of the files is "[CORE ID]_SummarySheet.csv", where [CORE ID] indicates the core identification assigned in the field. Geographical data about the core collection location can be found in "Collection locations of sediment cores from the New England Mud Patch collected on USGS Field Activity 2016-001-FA" within the greater work. 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 Country: United States Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: 68 comma-separated value spreadsheets (EN577_[CORE_ID]_SummarySheet.csv, where [CORE_ID] indicates core identification number), the browse graphic (MudPatchCores_BrowseGraphic.png) and the FGDC CSDGM metadata in XML format (EN577_SummarySheet_Metadata.xml). 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: CSV Format_Version_Number: Microsoft Excel 2008 Format_Information_Content: Comma separated value spreadsheet Transfer_Size: 1.34 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/60804620d34e8564d683624b Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/item/60804620d34e8564d683624b Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9ZYK3PX Access_Instructions: The first link is to download the data in a ZIP file. The second link is to the dataset landing page where files can be downloaded individually. The third link is to the main landing page of the data release. Fees: None Metadata_Reference_Information: Metadata_Date: 20230522 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Allyson A Boggess Contact_Organization: U.S. Geological Survey, NORTHEAST REGION Contact_Position: Geologist Contact_Address: Address_Type: mailing address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: US Contact_Voice_Telephone: 508-457-2341 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov Contact_Instructions: The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid. Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998