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                    <gco:Date>2024</gco:Date>
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                            <gmd:URL>https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords</gmd:URL>
                          </gmd:linkage>
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                  </gmd:contactInfo>
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          <gmd:otherConstraints>
            <gco:CharacterString>Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.</gco:CharacterString>
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          </gmd:useConstraints>
          <gmd:otherConstraints>
            <gco:CharacterString>Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.</gco:CharacterString>
          </gmd:otherConstraints>
        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints xlink:title="NCEI Data Citation Statement">
        <gmd:MD_LegalConstraints>
          <gmd:useLimitation>
            <gmd:MD_RestrictionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
          </gmd:useLimitation>
          <gmd:otherConstraints>
            <gco:CharacterString>Cite as: {{Author(s)}}. {{Publication year}}: {{Title}}. {{Version}}. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/{{DOI}}. Accessed [date].</gco:CharacterString>
          </gmd:otherConstraints>
        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints xlink:title="NCEI Copyright Statement">
        <gmd:MD_Constraints xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd" uuid="295cb881-4997-4a93-b31a-10855ef59b83">
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            <gco:CharacterString>Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.</gco:CharacterString>
          </gmd:useLimitation>
        </gmd:MD_Constraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints>
        <gmd:MD_LegalConstraints>
          <gmd:useConstraints>
            <gmd:MD_RestrictionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
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          <gmd:otherConstraints>
            <gco:CharacterString>While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.</gco:CharacterString>
          </gmd:otherConstraints>
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      </gmd:resourceConstraints>
      <gmd:resourceConstraints>
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            <gmd:MD_ClassificationCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ClassificationCode" codeListValue="unclassified" codeSpace="">unclassified</gmd:MD_ClassificationCode>
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        </gmd:MD_SecurityConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints>
        <gmd:MD_LegalConstraints>
          <gmd:accessConstraints>
            <gmd:MD_RestrictionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
          </gmd:accessConstraints>
          <gmd:otherConstraints>
            <gco:CharacterString>Access to this dataset is unrestricted.</gco:CharacterString>
          </gmd:otherConstraints>
        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:aggregationInfo xlink:title="NGDC SEAFLOOR SEDIMENT GRAIN SIZE DATABASE">
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                  <gmd:date>
                    <gco:Date>1976-12-31</gco:Date>
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                    <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
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                  <gmd:contactInfo>
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                          <gmd:linkage>
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                            <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
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                            <gco:CharacterString>Web Browser</gco:CharacterString>
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                            <gco:CharacterString>This database contains related grain size data.</gco:CharacterString>
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      <gmd:aggregationInfo xlink:title="Marine Geology Archive">
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                            <gmd:URL>https://data.noaa.gov/metaview/page?xml=NOAA/NESDIS/NGDC/Collection/iso/xml/Marine_Geology.xml&amp;view=getDataView&amp;header=none</gmd:URL>
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                            <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
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        <gmd:LanguageCode codeList="http://www.loc.gov/standards/iso639-2/php/English_list.php" codeListValue="eng: USA">eng; USA</gmd:LanguageCode>
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        <gmd:MD_CharacterSetCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode" codeListValue="UTF8">UTF8</gmd:MD_CharacterSetCode>
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              <gmd:eastBoundLongitude>
                <gco:Decimal>-96.116</gco:Decimal>
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              <gmd:southBoundLatitude>
                <gco:Decimal>26.166</gco:Decimal>
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              <gmd:northBoundLatitude>
                <gco:Decimal>28.233</gco:Decimal>
              </gmd:northBoundLatitude>
            </gmd:EX_GeographicBoundingBox>
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          <gmd:temporalElement>
            <gmd:EX_TemporalExtent id="boundingTemporalExtent">
              <gmd:extent>
                <gml:TimePeriod gml:id="TimePeriodID">
                  <gml:description>Sampling Dates</gml:description>
                  <gml:beginPosition>1974-02-08</gml:beginPosition>
                  <gml:endPosition>1977-10-18</gml:endPosition>
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            <gmd:EX_VerticalExtent id="boundingVerticalExtent">
              <gmd:minimumValue>
                <gco:Real>-134</gco:Real>
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              <gmd:maximumValue>
                <gco:Real>-10</gco:Real>
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              <gmd:verticalCRS gco:nilReason="missing" />
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  <!-- decimal latitude/longitude, xy position of sample collection location -->
  <gmd:contentInfo xlink:title="point">
    <gmd:MD_CoverageDescription xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd" id="samplingLatitudeLongitude" uuid="4e41adb1-b94c-431c-abbe-e1bdcffa8953">
      <gmd:attributeDescription>
        <gco:RecordType>The Latitude and Longitude (point) from which a sample of sediment or rock was collected from the sea floor or a lakebed.</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType>
        <gmd:MD_CoverageContentTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_CoverageContentTypeCode" codeListValue="point">point</gmd:MD_CoverageContentTypeCode>
      </gmd:contentType>
      <gmd:dimension>
        <gmd:MD_Band>
          <gmd:sequenceIdentifier>
            <gco:MemberName>
              <gco:aName>
                <gco:CharacterString>Latitude</gco:CharacterString>
              </gco:aName>
              <gco:attributeType gco:nilReason="unknown" />
            </gco:MemberName>
          </gmd:sequenceIdentifier>
          <gmd:descriptor>
            <gco:CharacterString>Distance measured north or south from the equator. Distance north is positive, distance south is negative.</gco:CharacterString>
          </gmd:descriptor>
          <gmd:maxValue>
            <gco:Real>90.00000</gco:Real>
          </gmd:maxValue>
          <gmd:minValue>
            <gco:Real>-90.00000</gco:Real>
          </gmd:minValue>
          <gmd:units>
            <gml:UnitDefinition gml:id="d1e1680">
              <gml:identifier codeSpace="local">decimal degrees</gml:identifier>
              <gml:name>decimal degrees</gml:name>
            </gml:UnitDefinition>
          </gmd:units>
        </gmd:MD_Band>
      </gmd:dimension>
      <gmd:dimension>
        <gmd:MD_Band>
          <gmd:sequenceIdentifier>
            <gco:MemberName>
              <gco:aName>
                <gco:CharacterString>Longitude</gco:CharacterString>
              </gco:aName>
              <gco:attributeType gco:nilReason="unknown" />
            </gco:MemberName>
          </gmd:sequenceIdentifier>
          <gmd:descriptor>
            <gco:CharacterString>Longitude is measured from the Prime Meridian (which is the north/south line that runs through Greenwich, England), values measured east are positive and values measured west are negative.</gco:CharacterString>
          </gmd:descriptor>
          <gmd:maxValue>
            <gco:Real>180.00000</gco:Real>
          </gmd:maxValue>
          <gmd:minValue>
            <gco:Real>-180.00000</gco:Real>
          </gmd:minValue>
          <gmd:units>
            <gml:UnitDefinition gml:id="d1e1958">
              <gml:identifier codeSpace="local">decimal degrees</gml:identifier>
              <gml:name>decimal degrees</gml:name>
            </gml:UnitDefinition>
          </gmd:units>
        </gmd:MD_Band>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <!-- water depth in meters, z position of sample collection location -->
  <gmd:contentInfo xlink:title="physicalMeasurement">
    <gmd:MD_CoverageDescription xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd" id="samplingWaterDepth" uuid="57b95996-3ae0-441e-9a93-1b5cc6bce6b0">
      <gmd:attributeDescription>
        <gco:RecordType>Information about the location from which a sample of sediment or rock was collected from the sea floor or a lakebed.</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType>
        <gmd:MD_CoverageContentTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_CoverageContentTypeCode" codeListValue="physicalMeasurement">physicalMeasurement</gmd:MD_CoverageContentTypeCode>
      </gmd:contentType>
      <gmd:dimension>
        <gmd:MD_Band>
          <gmd:sequenceIdentifier>
            <gco:MemberName>
              <gco:aName>
                <gco:CharacterString>Water Depth Meters</gco:CharacterString>
              </gco:aName>
              <gco:attributeType gco:nilReason="unknown" />
            </gco:MemberName>
          </gmd:sequenceIdentifier>
          <gmd:descriptor>
            <gco:CharacterString>The depth from the surface of the water to the sea floor or lakebed at the location where a measurement was taken or sample collection was begun.</gco:CharacterString>
          </gmd:descriptor>
          <gmd:maxValue>
            <gco:Real>23000</gco:Real>
          </gmd:maxValue>
          <gmd:minValue>
            <gco:Real>0</gco:Real>
          </gmd:minValue>
          <gmd:units>
            <gml:UnitDefinition gml:id="d1e2274">
              <gml:identifier codeSpace="local">corrected meters</gml:identifier>
              <gml:name>corrected meters</gml:name>
            </gml:UnitDefinition>
          </gmd:units>
        </gmd:MD_Band>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <!-- particle weight percentage -->
  <gmd:contentInfo xlink:title="physicalMeasurement">
    <gmd:MD_CoverageDescription xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd" id="grainSizeWeightPercent" uuid="f2356f84-fc6e-40d3-88d5-9562da04401c">
      <gmd:attributeDescription>
        <gco:RecordType>Weight percent of particles within a specified size range.</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType>
        <gmd:MD_CoverageContentTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_CoverageContentTypeCode" codeListValue="physicalMeasurement">physicalMeasurement</gmd:MD_CoverageContentTypeCode>
      </gmd:contentType>
      <gmd:dimension>
        <gmd:MD_Band>
          <gmd:sequenceIdentifier>
            <gco:MemberName>
              <gco:aName>
                <gco:CharacterString>weight percent</gco:CharacterString>
              </gco:aName>
              <gco:attributeType gco:nilReason="unknown" />
            </gco:MemberName>
          </gmd:sequenceIdentifier>
          <gmd:descriptor>
            <gco:CharacterString>Percentage, by weight, of the particles from a sample or subsample that falls within a specified particle size range. The range may be expressed in milimeters or phi as inidcated in the dataset.</gco:CharacterString>
          </gmd:descriptor>
          <gmd:maxValue>
            <gco:Real>0</gco:Real>
          </gmd:maxValue>
          <gmd:minValue>
            <gco:Real>100</gco:Real>
          </gmd:minValue>
          <gmd:units gco:nilReason="unknown" />
        </gmd:MD_Band>
      </gmd:dimension>
    </gmd:MD_CoverageDescription>
  </gmd:contentInfo>
  <gmd:contentInfo>
    <gmd:MD_FeatureCatalogueDescription>
      <gmd:complianceCode>
        <gco:Boolean>false</gco:Boolean>
      </gmd:complianceCode>
      <gmd:includedWithDataset>
        <gco:Boolean>true</gco:Boolean>
      </gmd:includedWithDataset>
      <gmd:featureTypes>
        <gco:LocalName codeSpace="Documentation" />
      </gmd:featureTypes>
      <gmd:featureCatalogueCitation>
        <gmd:CI_Citation>
          <gmd:title>
            <gco:CharacterString>Documentation for the THE STOCS- South Texas Outer Continental Shelf Project (University of Texas) dataset.</gco:CharacterString>
          </gmd:title>
          <gmd:date>
            <gmd:CI_Date>
              <gmd:date>
                <gco:Date>1977-01-01</gco:Date>
              </gmd:date>
              <gmd:dateType>
                <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="creation">creation</gmd:CI_DateTypeCode>
              </gmd:dateType>
            </gmd:CI_Date>
          </gmd:date>
          <gmd:otherCitationDetails>
            <gco:CharacterString>Entities and attributes are completely described in a text file accompanying the dataset on download.</gco:CharacterString>
          </gmd:otherCitationDetails>
        </gmd:CI_Citation>
      </gmd:featureCatalogueCitation>
    </gmd:MD_FeatureCatalogueDescription>
  </gmd:contentInfo>
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        <gmd:MD_Distributor>
          <gmd:distributorContact xlink:title="NCEI (distributor)">
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                <gmx:Anchor xlink:href="https://ror.org/04r0wrp59" xlink:title="ROR ID" xlink:actuate="onRequest">NOAA National Centers for Environmental Information</gmx:Anchor>
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                <gmd:CI_Contact>
                  <gmd:address>
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                      <gmd:electronicMailAddress>
                        <gco:CharacterString>ncei.info@noaa.gov</gco:CharacterString>
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                    </gmd:CI_Address>
                  </gmd:address>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://www.ncei.noaa.gov/contact</gmd:URL>
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                        <gco:CharacterString>Information for contacts at NCEI.</gco:CharacterString>
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                        <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
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                <gco:CharacterString>In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.</gco:CharacterString>
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              <gmd:orderingInstructions>
                <gco:CharacterString>Contact NCEI for other distribution options and instructions.</gco:CharacterString>
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          <gmd:distributorFormat>
            <gmd:MD_Format>
              <gmd:name>
                <gco:CharacterString>tar.gz</gco:CharacterString>
              </gmd:name>
              <gmd:version>
                <gco:CharacterString>unknown</gco:CharacterString>
              </gmd:version>
              <gmd:specification>
                <gco:CharacterString>compressed tape archive (tar) file</gco:CharacterString>
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          <gmd:distributorTransferOptions>
            <gmd:MD_DigitalTransferOptions>
              <gmd:onLine>
                <gmd:CI_OnlineResource>
                  <gmd:linkage>
                    <gmd:URL>https://data.noaa.gov/metaview/page?xml=NOAA/NESDIS/NGDC/MGG/Geology/iso/xml/G02888.xml&amp;view=getDataView&amp;header=none</gmd:URL>
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                    <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
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                  <gmd:applicationProfile>
                    <gco:CharacterString>Web Browser</gco:CharacterString>
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                  <gmd:name>
                    <gco:CharacterString>Metadata Landing Page</gco:CharacterString>
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                    <gco:CharacterString>Information about the data set, all access options, and complete documentation.</gco:CharacterString>
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                    <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnlineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
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          <gmd:distributorTransferOptions>
            <gmd:MD_DigitalTransferOptions>
              <gmd:onLine>
                <gmd:CI_OnlineResource>
                  <gmd:linkage>
                    <gmd:URL>https://www.ngdc.noaa.gov/mgg/geology/data/g02888/</gmd:URL>
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                    <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
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                  <gmd:name>
                    <gco:CharacterString>Data files and documentation</gco:CharacterString>
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                  <gmd:description>
                    <gco:CharacterString>Original data and documentation for MGGID 03565001: Grain size data compiled by W.E. Behrens, University of Texas, from multiple cruises of the R/V Longhorn. STOCS cruises 18-20, 24, 26, 28, 30, 32, 34, 37, 39, 40, 42, 46, 49, 54-55, 59-60, 68, 69-71, 80, and 82 offshore S. Texas in the Western Gulf of Mexico from February 8, 1976-October 18, 1977, and 2) MGG06105001. Grain size, trace metal analyses, and clay mineralogy compiled by Henry Berryhill, USGS, for grab and suspended sediment samples collected by the R/V Kana Keoki (MGG06105001), cruises BLM-STG 001-274, OCS G001-G274, OCS-B016-G273, OCS-W107-246B offshore S. Texas in the Western Gulf of Mexico from October 26-December 21, 1974.</gco:CharacterString>
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                    <gmd:CI_OnLineFunctionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
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          <gmd:distributorTransferOptions>
            <gmd:MD_DigitalTransferOptions>
              <gmd:onLine>
                <gmd:CI_OnlineResource>
                  <gmd:linkage>
                    <gmd:URL>https://www.ngdc.noaa.gov/mgg_grainsize/selectdisplay.jsp?mgg=03565001</gmd:URL>
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                    <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
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                    <gco:CharacterString>Download grain size data for MGG03565001 in delimited form from the NGDC Seafloor Sediment Grain Size Database.</gco:CharacterString>
                  </gmd:description>
                  <gmd:function>
                    <gmd:CI_OnLineFunctionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
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      <gmd:scope>
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            <gco:CharacterString>Horizontal Positional Accuracy</gco:CharacterString>
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          <gmd:measureDescription gco:nilReason="unknown" />
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      <gmd:lineage>
        <gmd:LI_Lineage>
          <gmd:statement>
            <gco:CharacterString>These data were contributed by the originator to NOAA's former National Oceanographic Data Center (NODC) and may be part of a larger compilation archived as oceanographic data by NCEI. Data for MGG06105001 were received in 1976 on nine track magnetic tape, ASCII form, 80 character records blocked to 4000 characters per block.  File contents: 1) 073 data cruise BLM-STG 001-274 with gross errors; 2-4) grain size data not in 073 format, OCS-6001-G274, OCS-B016-G273, OCS-W107-246B; 5) Appendix 2; 6) clay mineralogy; 7) trace metals from surficial sediments; 8) trace metals from suspended sediments. There were 4, 423 records, 261 with analytical data from cruise Kana Keoki Oct 26-Dec 21,1974. Grain size data were not translated/added to the 073 format/the historic NGDC Seafloor Sediment Grain Size Database due to gross errors.  The final copy of additional STOCS data, MGG03565001, were received on nine track ASCII magnetic tape in 1985 from Francis Mitchell of NODC combined with data from the MAFLA project.  STOCS data comprised files 11 through 35 of the tape and included 15,175 lines of 073 grain size data with no major errors, so were processed into the grain size database.</gco:CharacterString>
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            <gmd:LI_ProcessStep id="received">
              <gmd:description>
                <gco:CharacterString>From 1975 through the 1980s, most sediment data collected as part of offshore environmental baseline and/or habitat studies were part of a suite of measurements sent to NODC or NODC liasons.  NODC data managers, primarily Francis Mitchel, then sent the sediment-related data (e.g., physical properties, composition, geochemstry, mineralogy) to the former NGDC as the authoritative archive and distribution point for sediment data. Many sediment analyses and descriptions, however, were maintained by NODC as benthic habitat data, and some additional sediment data were duplicated between the NODC and NGDC archives.</gco:CharacterString>
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                <gco:DateTime>1985-03-20T00:00:00</gco:DateTime>
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  <gmd:dataQualityInfo xlink:title="NCEI repository history">
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        <gmd:DQ_Scope>
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      <gmd:lineage>
        <gmd:LI_Lineage>
          <gmd:processStep>
            <gmi:LE_ProcessStep>
              <gmd:description>
                <gco:CharacterString>NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.</gco:CharacterString>
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              <gmd:dateTime>
                <gco:DateTime>2015-04-22T00:00:00</gco:DateTime>
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  <gmd:metadataMaintenance>
    <gmd:MD_MaintenanceInformation>
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      <gmd:maintenanceNote>
        <gco:CharacterString>Modified for compliance to NCEI Template v1.2.</gco:CharacterString>
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  <gmi:acquisitionInformation>
    <gmi:MI_AcquisitionInformation>
      <gmi:instrument xlink:title="In Situ/Laboratory Instruments">
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            <gco:CharacterString>Instrument Type: Sea floor and lakebed geologic sampling (coring, drilling, dredging, trawling, and/or grab sampling devices) and/or in situ measurements (cameras, visual observations, and/or recorders/loggers)</gco:CharacterString>
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      <gmi:platform>
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          <gmi:identifier>
            <gmd:RS_Identifier>
              <gmd:code>
                <gco:CharacterString>Longhorn</gco:CharacterString>
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