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      </gmd:descriptiveKeywords>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>Ocean &gt; Pacific Ocean</gco:CharacterString>
          </gmd:keyword>
          <gmd:keyword>
            <gco:CharacterString>Vertical Location &gt;Sea Floor</gco:CharacterString>
          </gmd:keyword>
          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="place">place</gmd:MD_KeywordTypeCode>
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                <gco:CharacterString>Global Change Master Directory (GCMD) Location Keywords</gco:CharacterString>
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                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>2024</gco:Date>
                  </gmd:date>
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                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>
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                </gmd:CI_Date>
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              <gmd:edition>
                <gco:CharacterString>19</gco:CharacterString>
              </gmd:edition>
              <gmd:citedResponsibleParty xlink:title="GCMD Landing Page">
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                    <gco:CharacterString>Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)</gco:CharacterString>
                  </gmd:organisationName>
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords</gmd:URL>
                          </gmd:linkage>
                          <gmd:name>
                            <gco:CharacterString>GCMD Keyword Forum Page</gco:CharacterString>
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                            <gco:CharacterString>Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords</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:CI_OnlineResource>
                      </gmd:onlineResource>
                    </gmd:CI_Contact>
                  </gmd:contactInfo>
                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
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                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:resourceConstraints xlink:title="Distribution Liability">
        <gmd:MD_LegalConstraints uuid="dadd4ac3-2b9f-4db5-8603-71285b94c3d7">
          <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>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>
          </gmd:otherConstraints>
        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints xlink:title="Use Liability">
        <gmd:MD_LegalConstraints uuid="e8163b1b-fb5a-4f4e-8d5c-ed06da10e21b">
          <gmd:useConstraints>
            <gmd:MD_RestrictionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
          </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: John Wilson. 1977: BLM/OCS Southern California Outer Continental Shelf Environmental Baseline Studies.  NOAA National Centers for Environmental Information. 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">
          <gmd:useLimitation>
            <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>
          </gmd:useConstraints>
          <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>
        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints>
        <gmd:MD_SecurityConstraints>
          <gmd:classification>
            <gmd:MD_ClassificationCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ClassificationCode" codeListValue="unclassified" codeSpace="">unclassified</gmd:MD_ClassificationCode>
          </gmd:classification>
        </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">
        <gmd:MD_AggregateInformation uuid="8a72870a-55ec-423f-8d8b-fa892ddc0070">
          <gmd:aggregateDataSetName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>The NGDC Seafloor Sediment Grain Size Database</gco:CharacterString>
              </gmd:title>
              <gmd:date>
                <gmd:CI_Date>
                  <gmd:date>
                    <gco:Date>1976-12-31</gco:Date>
                  </gmd:date>
                  <gmd:dateType>
                    <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:CI_Date>
              </gmd:date>
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                  <gmd:code>
                    <gmx:Anchor xlink:href="https://doi.org/10.7289/V5G44N6W" xlink:title="DOI" xlink:actuate="onRequest">doi:10.7289/V5G44N6W</gmx:Anchor>
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                    <gco:CharacterString>National Geophysical Data Center, NOAA</gco:CharacterString>
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                  <gmd:role>
                    <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="author">author</gmd:CI_RoleCode>
                  </gmd:role>
                </gmd:CI_ResponsibleParty>
              </gmd:citedResponsibleParty>
              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName gco:nilReason="inapplicable" />
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <gmd:URL>https://doi.org/10.7289/V5G44N6W</gmd:URL>
                          </gmd:linkage>
                          <gmd:protocol>
                            <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:applicationProfile>
                            <gco:CharacterString>Web Browser</gco:CharacterString>
                          </gmd:applicationProfile>
                          <gmd:name>
                            <gco:CharacterString>Related database (doi:10.7289/V5G44N6W)</gco:CharacterString>
                          </gmd:name>
                          <gmd:description>
                            <gco:CharacterString>This database contains related grain size data.</gco:CharacterString>
                          </gmd:description>
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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:CI_Contact>
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          <gmd:initiativeType>
            <gmd:DS_InitiativeTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_InitiativeTypeCode" codeListValue="project">project</gmd:DS_InitiativeTypeCode>
          </gmd:initiativeType>
        </gmd:MD_AggregateInformation>
      </gmd:aggregationInfo>
      <gmd:aggregationInfo xlink:title="Marine Geology Archive">
        <gmd:MD_AggregateInformation xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd" uuid="36cc8b6b-afa1-48a4-9272-f5eda46b2a20">
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                  <gmd:date>
                    <gco:Date>1977-12-31</gco:Date>
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                    <gmd:CI_DateTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication" />
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                    <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
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                  <gmd:role>
                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="resourceProvider">resourceProvider</gmd:CI_RoleCode>
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              <gmd:citedResponsibleParty>
                <gmd:CI_ResponsibleParty>
                  <gmd:organisationName gco:nilReason="inapplicable" />
                  <gmd:contactInfo>
                    <gmd:CI_Contact>
                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
                          <gmd:linkage>
                            <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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                          <gmd:protocol>
                            <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:applicationProfile>
                            <gco:CharacterString>Web Browser</gco:CharacterString>
                          </gmd:applicationProfile>
                          <gmd:name>
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                          <gmd:description>
                            <gco:CharacterString>Information about the Marine Geology Data Archive 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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          <gmd:initiativeType>
            <gmd:DS_InitiativeTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_InitiativeTypeCode;" codeListValue="collection">collection</gmd:DS_InitiativeTypeCode>
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        </gmd:MD_AggregateInformation>
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      <gmd:aggregationInfo xlink:title=" NOAA/NCEI Marine Geology WAF ">
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                  <gmd:date>
                    <gco:Date>2015-10-05</gco:Date>
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              <gmd:citedResponsibleParty>
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                    <gmd:CI_Contact>
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                        <gmd:CI_OnlineResource>
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                          <gmd:protocol>
                            <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
                          </gmd:protocol>
                          <gmd:applicationProfile>
                            <gco:CharacterString>Web Browser</gco:CharacterString>
                          </gmd:applicationProfile>
                          <gmd:name>
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                            <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="search">search</gmd:CI_OnLineFunctionCode>
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            <gmd:DS_AssociationTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_AssociationTypeCode" codeListValue="crossReference">crossReference</gmd:DS_AssociationTypeCode>
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          <gmd:initiativeType>
            <gmd:DS_InitiativeTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#DS_InitiativeTypeCode" codeListValue="collection">collection</gmd:DS_InitiativeTypeCode>
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      <gmd:spatialRepresentationType>
        <gmd:MD_SpatialRepresentationTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_SpatialRepresentationTypeCode" codeListValue="vector">vector</gmd:MD_SpatialRepresentationTypeCode>
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      <gmd:spatialResolution gco:nilReason="missing">
        <gmd:MD_Resolution>
          <gmd:levelOfDetail>
            <gco:CharacterString>Vertical resolution is 1 meter and horizontal resolution is .001 degree.</gco:CharacterString>
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      <gmd:language>
        <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:characterSet>
        <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:MD_TopicCategoryCode>geoscientificInformation</gmd:MD_TopicCategoryCode>
      </gmd:topicCategory>
      <gmd:topicCategory>
        <gmd:MD_TopicCategoryCode>oceans</gmd:MD_TopicCategoryCode>
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        <gco:CharacterString>Native Dataset Environment: ASCII text</gco:CharacterString>
      </gmd:environmentDescription>
      <gmd:extent>
        <gmd:EX_Extent id="boundingExtent">
          <gmd:description>
            <gco:CharacterString>Offshore Southern California</gco:CharacterString>
          </gmd:description>
          <gmd:geographicElement>
            <gmd:EX_GeographicBoundingBox id="boundingGeographicBoundingBox">
              <gmd:westBoundLongitude>
                <gco:Decimal>-120.533</gco:Decimal>
              </gmd:westBoundLongitude>
              <gmd:eastBoundLongitude>
                <gco:Decimal>-117.251</gco:Decimal>
              </gmd:eastBoundLongitude>
              <gmd:southBoundLatitude>
                <gco:Decimal>30.666</gco:Decimal>
              </gmd:southBoundLatitude>
              <gmd:northBoundLatitude>
                <gco:Decimal>34.411</gco:Decimal>
              </gmd:northBoundLatitude>
            </gmd:EX_GeographicBoundingBox>
          </gmd:geographicElement>
          <gmd:temporalElement>
            <gmd:EX_TemporalExtent id="boundingTemporalExtent">
              <gmd:extent>
                <gml:TimePeriod gml:id="TimePeriodID">
                  <gml:description>Publication Date</gml:description>
                  <gml:beginPosition>1975-9-8</gml:beginPosition>
                  <gml:endPosition>1976-5-7</gml:endPosition>
                </gml:TimePeriod>
              </gmd:extent>
            </gmd:EX_TemporalExtent>
          </gmd:temporalElement>
          <gmd:verticalElement>
            <gmd:EX_VerticalExtent id="boundingVerticalExtent">
              <gmd:minimumValue>
                <gco:Real>-200</gco:Real>
              </gmd:minimumValue>
              <gmd:maximumValue>
                <gco:Real>0</gco:Real>
              </gmd:maximumValue>
              <gmd:verticalCRS gco:nilReason="missing" />
            </gmd:EX_VerticalExtent>
          </gmd:verticalElement>
        </gmd:EX_Extent>
      </gmd:extent>
      <gmd:supplementalInformation>
        <gco:CharacterString>Due to quality concerns, these data were not added to the historic NGDC Seafloor Sediment Grain Size Database, and are only available in their original form. Vertical extent is not known, continental shelf</gco:CharacterString>
      </gmd:supplementalInformation>
    </gmd:MD_DataIdentification>
  </gmd:identificationInfo>
  <!-- decimal latitude/longitude, xy position of sample collection location -->
  <gmd:contentInfo xlink:title="point">
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        <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>
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      <gmd:dimension>
        <gmd:MD_Band>
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            <gco:MemberName>
              <gco:aName>
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              <gco:attributeType gco:nilReason="unknown" />
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          <gmd:minValue>
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          <gmd:units>
            <gml:UnitDefinition gml:id="d1e1680">
              <gml:identifier codeSpace="local">decimal degrees</gml:identifier>
              <gml:name>decimal degrees</gml:name>
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        </gmd:MD_Band>
      </gmd:dimension>
      <gmd:dimension>
        <gmd:MD_Band>
          <gmd:sequenceIdentifier>
            <gco:MemberName>
              <gco:aName>
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              <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>
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          <gmd:units>
            <gml:UnitDefinition gml:id="d1e1958">
              <gml:identifier codeSpace="local">decimal degrees</gml:identifier>
              <gml:name>decimal degrees</gml:name>
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          </gmd:units>
        </gmd:MD_Band>
      </gmd:dimension>
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  <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" />
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      <gmd:featureCatalogueCitation>
        <gmd:CI_Citation>
          <gmd:title>
            <gco:CharacterString>Documentation for the BLM/OCS/Southern California Baseline Studies dataset.</gco:CharacterString>
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                <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="creation">creation</gmd:CI_DateTypeCode>
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            </gmd:CI_Date>
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        </gmd:CI_Citation>
      </gmd:featureCatalogueCitation>
    </gmd:MD_FeatureCatalogueDescription>
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    <gmd:MD_Distribution>
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        <gmd:MD_Distributor>
          <gmd:distributorContact xlink:title="NCEI (distributor)">
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              <gmd:contactInfo>
                <gmd:CI_Contact>
                  <gmd:address>
                    <gmd:CI_Address>
                      <gmd:electronicMailAddress>
                        <gco:CharacterString>ncei.info@noaa.gov</gco:CharacterString>
                      </gmd:electronicMailAddress>
                    </gmd:CI_Address>
                  </gmd:address>
                  <gmd:onlineResource>
                    <gmd:CI_OnlineResource>
                      <gmd:linkage>
                        <gmd:URL>https://www.ncei.noaa.gov/contact</gmd:URL>
                      </gmd:linkage>
                      <gmd:name>
                        <gco:CharacterString>NCEI Contact Information</gco:CharacterString>
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                      <gmd:description>
                        <gco:CharacterString>Information for contacts at NCEI.</gco:CharacterString>
                      </gmd:description>
                      <gmd:function>
                        <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:CI_OnlineResource>
                  </gmd:onlineResource>
                </gmd:CI_Contact>
              </gmd:contactInfo>
              <gmd:role>
                <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="distributor">distributor</gmd:CI_RoleCode>
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          <gmd:distributionOrderProcess>
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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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                <gco:CharacterString>unknown</gco:CharacterString>
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              <gmd:specification>
                <gco:CharacterString>compressed tape archive (tar) file</gco:CharacterString>
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          </gmd:distributorFormat>
          <gmd:distributorFormat>
            <gmd:MD_Format>
              <gmd:name>
                <gco:CharacterString>PDF</gco:CharacterString>
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              <gmd:version gco:nilReason="unknown" />
              <gmd:specification>
                <gco:CharacterString>Adobe Portable Document Format (PDF).</gco:CharacterString>
              </gmd:specification>
            </gmd:MD_Format>
          </gmd:distributorFormat>
          <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/G02881.xml&amp;view=getDataView&amp;header=none</gmd:URL>
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                  <gmd:protocol>
                    <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
                  </gmd:protocol>
                  <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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                  <gmd:description>
                    <gco:CharacterString>Information about the data set, all access options, and complete documentation.</gco:CharacterString>
                  </gmd:description>
                  <gmd:function>
                    <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:CI_OnlineResource>
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          </gmd:distributorTransferOptions>
          <gmd:distributorTransferOptions>
            <gmd:MD_DigitalTransferOptions>
              <gmd:onLine>
                <gmd:CI_OnlineResource>
                  <gmd:linkage>
                    <gmd:URL>https://www.ngdc.noaa.gov/mgg/geology/data/g02881/</gmd:URL>
                  </gmd:linkage>
                  <gmd:protocol>
                    <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
                  </gmd:protocol>
                  <gmd:applicationProfile>
                    <gco:CharacterString>Web Browser</gco:CharacterString>
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                    <gco:CharacterString>Download data files and documentation</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:distributorTransferOptions>
            <gmd:MD_DigitalTransferOptions>
              <gmd:onLine>
                <gmd:CI_OnlineResource>
                  <gmd:linkage>
                    <gmd:URL>https://www.ngdc.noaa.gov/mgg/geology/data/g02881/readme.txt</gmd:URL>
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                  <gmd:applicationProfile>
                    <gco:CharacterString>Web Browser</gco:CharacterString>
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                    <gmd:CI_OnLineFunctionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
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          </gmd:distributorTransferOptions>
        </gmd:MD_Distributor>
      </gmd:distributor>
    </gmd:MD_Distribution>
  </gmd:distributionInfo>
  <gmd:dataQualityInfo>
    <gmd:DQ_DataQuality>
      <gmd:scope>
        <gmd:DQ_Scope id="datasetScope">
          <gmd:level>
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        <gmd:DQ_AbsoluteExternalPositionalAccuracy>
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            <gco:CharacterString>Horizontal Positional Accuracy</gco:CharacterString>
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          <gmd:measureDescription gco:nilReason="unknown" />
          <gmd:evaluationMethodDescription>
            <gco:CharacterString>The horizontal accuracy of data values is approximately .001 degree of latitude/longitude.</gco:CharacterString>
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            <gco:CharacterString>Reliability</gco:CharacterString>
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            <gco:CharacterString>Grain size data from this data set were run through algorithm to sum phi weight percentages, and due to quality concerns raised during the process, were not added to the historic NGDC Seafloor Sediment Grain Size Database. Grain size analyses from this data set are only available in their original form.</gco:CharacterString>
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            <gco:CharacterString>Quality control was performed by the originator. NCEI performed basic out-of-range location testing.</gco:CharacterString>
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          <gmd:statement>
            <gco:CharacterString>Grain size analyses from this data set were not reformatted to the 073 format for addition to the NGDC Seafloor Sediment Grain Size Database due to quality concerns.  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 were received in September of 1977 on nine track magnetic tape in EBCDIC form as five files of 130 character records blocked to 2600 characters per block.  The tape contained 2, 580 records, there were 1,066 sample header records, but all but 801 were duplicated.  Francis Mitchel of NODC noted on transmission that the data were probably not usable.</gco:CharacterString>
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                <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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              <gmd:dateTime>
                <gco:DateTime>1977-08-10T00:00:00</gco:DateTime>
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          <gmd:source>
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                <gco:CharacterString>John Wilson Science Applications, Inc.</gco:CharacterString>
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          </gmd:source>
        </gmd:LI_Lineage>
      </gmd:lineage>
    </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
  <gmd:dataQualityInfo xlink:title="NCEI repository history">
    <gmd:DQ_DataQuality xsi:schemaLocation="http://www.isotc211.org/2005/gmd https://data.noaa.gov/resources/iso19139/schema.xsd" uuid="b24b7720-4d3e-42f9-b6b8-88429d75e36b">
      <gmd:scope>
        <gmd:DQ_Scope>
          <gmd:level>
            <gmd:MD_ScopeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_ScopeCode" codeListValue="repository">repository</gmd:MD_ScopeCode>
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          <gmd:levelDescription>
            <gmd:MD_ScopeDescription>
              <gmd:other>
                <gco:CharacterString>NOAA National Centers for Environmental Information</gco:CharacterString>
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            </gmd:MD_ScopeDescription>
          </gmd:levelDescription>
        </gmd:DQ_Scope>
      </gmd:scope>
      <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:processStep>
        </gmd:LI_Lineage>
      </gmd:lineage>
    </gmd:DQ_DataQuality>
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  <gmd:metadataMaintenance>
    <gmd:MD_MaintenanceInformation>
      <gmd:maintenanceAndUpdateFrequency>
        <gmd:MD_MaintenanceFrequencyCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_MaintenanceFrequencyCode" codeListValue="asNeeded">asNeeded</gmd:MD_MaintenanceFrequencyCode>
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      <gmd:maintenanceNote>
        <gco:CharacterString>Modified for compliance to NCEI Template v1.2.</gco:CharacterString>
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    </gmd:MD_MaintenanceInformation>
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  <gmi:acquisitionInformation>
    <gmi:MI_AcquisitionInformation>
      <gmi:instrument>
        <gmi:MI_Instrument>
          <gmi:identifier>
            <gmd:MD_Identifier>
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                <gco:CharacterString>various</gco:CharacterString>
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          </gmi:identifier>
          <gmi:type gco:nilReason="unknown" />
          <gmi:description>
            <gco:CharacterString>grab/dredge, box cores</gco:CharacterString>
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      </gmi:instrument>
      <gmi:platform xlink:title="In Situ Ocean-based Platforms &gt; Ships">
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            </gmd:MD_Identifier>
          </gmi:identifier>
          <gmi:description>
            <gco:CharacterString>Various ocean-based and lake-based ships, boats, remotely operated vehicles, submersibles, and other unspecified types of platforms</gco:CharacterString>
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          <gmi:instrument gco:nilReason="inapplicable" />
        </gmi:MI_Platform>
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