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                            <gco:CharacterString>WWW:LINK-1.0-http--link</gco:CharacterString>
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        <gmd:MD_Resolution>
          <gmd:equivalentScale>
            <!-- vertical is meters where given in reference, horizontal is in degrees latitude/longitude -->
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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:topicCategory>
      <gmd:topicCategory>
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        <gco:CharacterString>Native Dataset Environment: ASCII text files Technical Prerequisites: Contact data center for information</gco:CharacterString>
      </gmd:environmentDescription>
      <gmd:extent>
        <gmd:EX_Extent id="boundingExtent">
          <gmd:description>
            <gco:CharacterString>The dataset is nearly global in extent.</gco:CharacterString>
          </gmd:description>
          <gmd:geographicElement>
            <gmd:EX_GeographicBoundingBox id="boundingGeographicBoundingBox">
              <gmd:westBoundLongitude>
                <gco:Decimal>-180</gco:Decimal>
              </gmd:westBoundLongitude>
              <gmd:eastBoundLongitude>
                <gco:Decimal>180</gco:Decimal>
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              <gmd:southBoundLatitude>
                <gco:Decimal>-90</gco:Decimal>
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              <gmd:northBoundLatitude>
                <gco:Decimal>90</gco:Decimal>
              </gmd:northBoundLatitude>
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          </gmd:geographicElement>
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            <gmd:EX_TemporalExtent id="boundingTemporalExtent">
              <gmd:extent>
                <gml:TimePeriod gml:id="TimePeriodID">
                  <gml:description>Data Set Compilation Dates</gml:description>
                  <gml:beginPosition>1984-05-02</gml:beginPosition>
                  <gml:endPosition>1991-10-31</gml:endPosition>
                </gml:TimePeriod>
              </gmd:extent>
            </gmd:EX_TemporalExtent>
          </gmd:temporalElement>
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            <gmd:EX_VerticalExtent id="boundingVerticalExtent">
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                <gco:Real>-7280</gco:Real>
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              <gmd:maximumValue>
                <gco:Real>-64</gco:Real>
              </gmd:maximumValue>
              <gmd:verticalCRS gco:nilReason="unknown" />
            </gmd:EX_VerticalExtent>
          </gmd:verticalElement>
        </gmd:EX_Extent>
      </gmd:extent>
      <gmd:supplementalInformation>
        <gco:CharacterString>This database is partially incorporated in corrected, updated form from the International Seabed Authority</gco:CharacterString>
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    </gmd:MD_DataIdentification>
  </gmd:identificationInfo>
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    <gmi:MI_CoverageDescription>
      <gmd:attributeDescription>
        <gco:RecordType>Database records contain geochemical analyses for marine mineral deposits of ferromanganese nodules and crusts, and heavy mineral deposits. Data were contributed or extracted from the literature.</gco:RecordType>
      </gmd:attributeDescription>
      <gmd:contentType>
        <gmd:MD_CoverageContentTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_CoverageContentTypeCode" codeListValue="code">point</gmd:MD_CoverageContentTypeCode>
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      <gmd:dimension>
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            <gco:MemberName>
              <gco:aName>
                <gco:CharacterString>begin_date</gco:CharacterString>
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              <gco:attributeType gco:nilReason="unknown" />
            </gco:MemberName>
          </gmd:sequenceIdentifier>
          <gmd:descriptor>
            <gco:CharacterString>The date when a sampling operation was
              begun.</gco:CharacterString>
          </gmd:descriptor>
          <gmd:maxValue>
            <gco:Real>199112315900</gco:Real>
          </gmd:maxValue>
          <gmd:minValue>
            <gco:Real>180001010000</gco:Real>
          </gmd:minValue>
          <gmd:units>
            <gml:UnitDefinition gml:id="d1e1608">
              <gml:identifier codeSpace="local">Year, Month, Day, Hour in the form
                YYYYMMDDHHHH</gml:identifier>
              <gml:name>Year, Month, Day, Hour in the form YYYYMMDDHHHH</gml:name>
            </gml:UnitDefinition>
          </gmd:units>
        </gmd:MD_Band>
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      <gmd:dimension>
        <gmd:MD_Band>
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                <gco:CharacterString>latdeg</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 in whole
              degrees, unsigned.</gco:CharacterString>
          </gmd:descriptor>
          <gmd:maxValue>
            <gco:Real>90</gco:Real>
          </gmd:maxValue>
          <gmd:minValue>
            <gco:Real>0</gco:Real>
          </gmd:minValue>
          <gmd:units>
            <gml:UnitDefinition gml:id="d1e1716">
              <gml:identifier codeSpace="local">whole degrees, unsigned</gml:identifier>
              <gml:name>whole degrees, unsigned</gml:name>
            </gml:UnitDefinition>
          </gmd:units>
        </gmd:MD_Band>
      </gmd:dimension>
      <gmd:dimension>
        <gmd:MD_Band>
          <gmd:sequenceIdentifier>
            <gco:MemberName>
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                <gco:CharacterString>latmin</gco:CharacterString>
              </gco:aName>
              <gco:attributeType gco:nilReason="unknown" />
            </gco:MemberName>
          </gmd:sequenceIdentifier>
          <gmd:descriptor>
            <gco:CharacterString>Minutes of latitude, added to the attribute latdeg,
              indicating distance measured north or south from the
              equator.</gco:CharacterString>
          </gmd:descriptor>
          <gmd:maxValue>
            <gco:Real>59.00</gco:Real>
          </gmd:maxValue>
          <gmd:minValue>
            <gco:Real>00.00</gco:Real>
          </gmd:minValue>
          <gmd:units>
            <gml:UnitDefinition gml:id="d1e1744">
              <gml:identifier codeSpace="local">Minutes and decimal minutes of
                latitude</gml:identifier>
              <gml:name>Minutes and decimal minutes of latitude</gml:name>
            </gml:UnitDefinition>
          </gmd:units>
        </gmd:MD_Band>
      </gmd:dimension>
      <gmd:dimension>
        <gmd:MD_Band>
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              <gco:attributeType gco:nilReason="unknown" />
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          </gmd:sequenceIdentifier>
          <gmd:descriptor>
            <gco:CharacterString>Distance measured east or west of the Prime Meridian in whole
              degrees, unsigned.</gco:CharacterString>
          </gmd:descriptor>
          <gmd:maxValue>
            <gco:Real>180</gco:Real>
          </gmd:maxValue>
          <gmd:minValue>
            <gco:Real>0</gco:Real>
          </gmd:minValue>
          <gmd:units>
            <gml:UnitDefinition gml:id="d1e1994">
              <gml:identifier codeSpace="local">whole degrees, unsigned</gml:identifier>
              <gml:name>whole degrees, unsigned</gml:name>
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      </gmd:dimension>
      <gmd:dimension>
        <gmd:MD_Band>
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            <gco:MemberName>
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                <gco:CharacterString>lonmin</gco:CharacterString>
              </gco:aName>
              <gco:attributeType gco:nilReason="unknown" />
            </gco:MemberName>
          </gmd:sequenceIdentifier>
          <gmd:descriptor>
            <gco:CharacterString>Minutes of longitude, added to the attribute londeg,
              indicating distance measured east or west of the Prime
              Meridian.</gco:CharacterString>
          </gmd:descriptor>
          <gmd:maxValue>
            <gco:Real>59.00</gco:Real>
          </gmd:maxValue>
          <gmd:minValue>
            <gco:Real>00.00</gco:Real>
          </gmd:minValue>
          <gmd:units>
            <gml:UnitDefinition gml:id="d1e2021">
              <gml:identifier codeSpace="local">Minutes and decimal minutes of
                longitude</gml:identifier>
              <gml:name>Minutes and decimal minutes of longitude</gml:name>
            </gml:UnitDefinition>
          </gmd:units>
        </gmd:MD_Band>
      </gmd:dimension>
      <gmi:rangeElementDescription>
        <gmi:MI_RangeElementDescription>
          <gmi:name>
            <gco:CharacterString>ns</gco:CharacterString>
          </gmi:name>
          <gmi:definition>
            <gco:CharacterString>Indicator of whether latitude is north or south of the
              equator.</gco:CharacterString>
          </gmi:definition>
          <!--Attribute Definition Source not translated: Author-->
          <gmi:rangeElement>
            <gco:Record>n: Latitude value is north of the equator.</gco:Record>
          </gmi:rangeElement>
          <gmi:rangeElement>
            <gco:Record>s: Latitude measured is south of the equator.</gco:Record>
          </gmi:rangeElement>
        </gmi:MI_RangeElementDescription>
      </gmi:rangeElementDescription>
      <gmi:rangeElementDescription>
        <gmi:MI_RangeElementDescription>
          <gmi:name>
            <gco:CharacterString>ew</gco:CharacterString>
          </gmi:name>
          <gmi:definition>
            <gco:CharacterString>Indicator of whether longitude is east or west of the Prime
              Meridian.</gco:CharacterString>
          </gmi:definition>
          <!--Attribute Definition Source not translated: Author-->
          <gmi:rangeElement>
            <gco:Record>e: Longitude measured is east of the Prime Meridian.</gco:Record>
          </gmi:rangeElement>
          <gmi:rangeElement>
            <gco:Record>w: Longitude measured is west of the Prime Meridian.</gco:Record>
          </gmi:rangeElement>
        </gmi:MI_RangeElementDescription>
      </gmi:rangeElementDescription>
      <gmi:rangeElementDescription>
        <gmi:MI_RangeElementDescription>
          <gmi:name>
            <gco:CharacterString>MMBIB Identifier</gco:CharacterString>
          </gmi:name>
          <gmi:definition>
            <gco:CharacterString>A unique identifier tying geochemical data to the associated reference within the NOAA and MMS Marine Minerals Bibliography consisting of the first four letters of the (first) author last name, followed by the first letter of the (first) author first name, then the first letter of the (first) author middle name (a if no middle name), then the last two digits of the year of publication, then a two digit sequence number within the year.  E.g., CRONTM8301 (Cronin, T.M., 1983).  The MMBIB is also used to cross-reference source articles with geochemical data in the NOAA and MMS Marine Minerals Geochemistry database.  This convention has been continued by the International Seabed Authority (ISA) in their bibliography and geochemical databases which are partially derived from the NOAA and MMS Marine Minerals Bibliography and Database.</gco:CharacterString>
          </gmi:definition>
          <!--Attribute Definition Source not translated: Author-->
          <gmi:rangeElement>
            <gco:Record>AAAAAA0001 - ZZZZZZ9999</gco:Record>
          </gmi:rangeElement>
        </gmi:MI_RangeElementDescription>
      </gmi:rangeElementDescription>
    </gmi:MI_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>
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