<?xml version="1.0" encoding="UTF-8"?><md:MetaData xmlns:md="http://www.pangaea.de/MetaData" version="2026-04-13">
<md:citation id="dataset951186">
<md:author id="dataset.author10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:author>
<md:author id="dataset.author29621">
<md:lastName>Greaves</md:lastName>
<md:firstName>Mervyn</md:firstName>
<md:eMail>mg109@cam.ac.uk</md:eMail>
<md:orcid>0000-0001-8014-8627</md:orcid>
</md:author>
<md:year>2022</md:year>
<md:title>Chemical concentration of major metal and rare reath elements (REE) for manganese deposits in the Bauer Basin (Pacific Ocean)</md:title>
<md:type id="dataset.reftype10" includeInCitation="true">dataset</md:type>
<md:URI>https://doi.org/10.1594/PANGAEA.951186</md:URI>
<md:dateTime>2022-11-22T11:58:02</md:dateTime>
</md:citation>
<md:abstract>The samples were collected from R/V "Yaquina" at 13°40'S, 102°8'W during cruise YALOC-73 of Oregon State University. The Mn nodules were sorted by morphological type before analysis. The Mn nodules and crust were analysed for REE by mixed-solvent ion exchange and mass spectrometric isotope dilution. Isotope analyses were performed on an A.E.I. MS5 mass spectrometer. The determinations of Fe, Mn, Co, Cu, Ni (atomic absorption spectrophotometry) and P (colorimetry) were made on the leachate from 0.1 M HCl.</md:abstract>
<md:reference dataciteRelType="References" group="210" id="ref116157" relationType="Related to" relationTypeId="12">
<md:author id="ref116157.author10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:author>
<md:author id="ref116157.author29621">
<md:lastName>Greaves</md:lastName>
<md:firstName>Mervyn</md:firstName>
<md:eMail>mg109@cam.ac.uk</md:eMail>
<md:orcid>0000-0001-8014-8627</md:orcid>
</md:author>
<md:year>1981</md:year>
<md:title>Negative cerium anomalies in the rare earth element patterns of oceanic ferromanganese nodules</md:title>
<md:type id="ref116157.reftype1">journal article</md:type>
<md:source id="ref116157.journal4644" relatedTermIds="34397" type="journal">Earth and Planetary Science Letters</md:source>
<md:volume>55(1)</md:volume>
<md:URI>https://doi.org/10.1016/0012-821X(81)90095-9</md:URI>
<md:pages>163-170</md:pages>
</md:reference>
<md:reference dataciteRelType="IsDerivedFrom" group="300" id="ref67195" relationType="Source" relationTypeId="16">
<md:author id="ref67195.author53898">
<md:lastName>Grant</md:lastName>
<md:firstName>John Bruce</md:firstName>
</md:author>
<md:author id="ref67195.author568">
<md:lastName>Moore</md:lastName>
<md:firstName>Carla J</md:firstName>
<md:eMail>carla.j.moore@noaa.gov</md:eMail>
<md:orcid>0000-0002-2610-8648</md:orcid>
</md:author>
<md:author id="ref67195.author53899">
<md:lastName>Alameddin</md:lastName>
<md:firstName>George</md:firstName>
</md:author>
<md:author id="ref67195.author53900">
<md:lastName>Chen</md:lastName>
<md:firstName>Kuiying</md:firstName>
</md:author>
<md:author id="ref67195.author53901">
<md:lastName>Barton</md:lastName>
<md:firstName>Mark</md:firstName>
</md:author>
<md:year>1992</md:year>
<md:title>The NOAA and MMS Marine Minerals Geochemical Database</md:title>
<md:source>National Geophysical Data Center, NOAA</md:source>
<md:URI>https://doi.org/10.7289/V52Z13FT</md:URI>
</md:reference>
<md:reference dataciteRelType="IsDocumentedBy" group="640" id="ref67263" relationType="Further details" relationTypeId="17">
<md:author id="ref67263.author21391">
<md:lastName>Warnken</md:lastName>
<md:firstName>Robin R</md:firstName>
<md:eMail>rrw@luna.ngdc.noaa.gov</md:eMail>
</md:author>
<md:author id="ref67263.author53916">
<md:lastName>Virden</md:lastName>
<md:firstName>William T</md:firstName>
</md:author>
<md:author id="ref67263.author568">
<md:lastName>Moore</md:lastName>
<md:firstName>Carla J</md:firstName>
<md:eMail>carla.j.moore@noaa.gov</md:eMail>
<md:orcid>0000-0002-2610-8648</md:orcid>
</md:author>
<md:year>1992</md:year>
<md:title>The NOAA and MMS Marine Minerals Bibliography</md:title>
<md:source>National Geophysical Data Center, NOAA</md:source>
<md:URI>https://doi.org/10.7289/V53X84KN</md:URI>
</md:reference>
<md:extent>
<md:geographic>
<md:westBoundLongitude>-102.146667</md:westBoundLongitude>
<md:eastBoundLongitude>-102.146667</md:eastBoundLongitude>
<md:southBoundLatitude>-13.663333</md:southBoundLatitude>
<md:northBoundLatitude>-13.663333</md:northBoundLatitude>
<md:meanLongitude>-102.146667</md:meanLongitude>
<md:meanLatitude>-13.663333</md:meanLatitude>
</md:geographic>
<md:temporal>
<md:minDateTime>1973-10-30T00:00:00</md:minDateTime>
<md:maxDateTime>1973-10-30T00:00:00</md:maxDateTime>
</md:temporal>
<md:elevation name="Elevation" unit="m">
<md:min>-4335.0</md:min>
<md:max>-4335.0</md:max>
</md:elevation>
<md:topoType id="topotype1">not specified</md:topoType>
</md:extent>
<md:project id="project4198" type="International">
<md:label>NOAA-MMS</md:label>
<md:name>NOAA and MMS Marine Minerals Geochemical Database</md:name>
<md:URI>https://wiki.pangaea.de/wiki/NOAA-MMS</md:URI>
</md:project>
<md:event displayTypeName="Event" id="event3028780" typeName="Generic Event">
<md:label>Y73-03-22D</md:label>
<md:latitude>-13.663333</md:latitude>
<md:longitude>-102.146667</md:longitude>
<md:location id="event3028780.term20898">
<md:name>Pacific Ocean</md:name>
</md:location>
<md:elevation>-4335.0</md:elevation>
<md:dateTime>1973-10-30T00:00:00</md:dateTime>
<md:campaign displayTypeName="Campaign" id="event3028780.campaign3373047" legacyId="event3028780.campaign859" typeName="Generic Campaign">
<md:label>Y73-03</md:label>
<md:name warning="deprecated">Y73-03</md:name>
<md:dateTime>1973-10-13T00:00:00</md:dateTime>
<md:start warning="deprecated">1973-10-13</md:start>
<md:dateTime2>1973-11-05T00:00:00</md:dateTime2>
<md:end warning="deprecated">1973-11-05</md:end>
<md:basis id="event3028780.campaign3373047.basis47">
<md:name>Yaquina</md:name>
</md:basis>
</md:campaign>
<md:basis id="event3028780.basis47">
<md:name>Yaquina</md:name>
</md:basis>
<md:method id="event3028780.method10655">
<md:name>Piston corer</md:name>
<md:optionalName>PC</md:optionalName>
</md:method>
<md:attribute attid="19163" name="Recovery">100 kg</md:attribute>
</md:event>
<md:size unit="data points">90</md:size>
<md:license id="license21">
<md:label>CC-BY-4.0</md:label>
<md:name>Creative Commons Attribution 4.0 International</md:name>
<md:URI>https://creativecommons.org/licenses/by/4.0/</md:URI>
</md:license>
<md:comment>From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.
This dataset represents the digitized Table 1, pp. 164-165 of the related publication.</md:comment>
<md:matrixColumn col="0" source="event" type="string">
<md:parameter>
<md:name>Event label</md:name>
<md:shortName>Event</md:shortName>
</md:parameter>
<md:caption>Event</md:caption>
</md:matrixColumn>
<md:matrixColumn behaviour="2" col="1" format="###0.0000" source="event" type="numeric">
<md:parameter id="col1.geocode1600">
<md:name>Latitude of event</md:name>
<md:shortName>Latitude</md:shortName>
</md:parameter>
<md:caption>Latitude</md:caption>
</md:matrixColumn>
<md:matrixColumn behaviour="3" col="2" format="###0.0000" source="event" type="numeric">
<md:parameter id="col2.geocode1601">
<md:name>Longitude of event</md:name>
<md:shortName>Longitude</md:shortName>
</md:parameter>
<md:caption>Longitude</md:caption>
</md:matrixColumn>
<md:matrixColumn behaviour="1" col="3" format="####0" source="event" type="numeric">
<md:parameter id="col3.geocode8128">
<md:name>Elevation of event</md:name>
<md:shortName>Elevation</md:shortName>
<md:unit>m</md:unit>
</md:parameter>
<md:caption>Elevation [m]</md:caption>
</md:matrixColumn>
<md:matrixColumn col="4" id="col4.ds14775206" source="data" type="string">
<md:parameter id="col4.ds14775206.param7056">
<md:name>Identification</md:name>
<md:shortName>ID</md:shortName>
</md:parameter>
<md:PI id="col4.ds14775206.pi10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:PI>
<md:caption>ID</md:caption>
</md:matrixColumn>
<md:matrixColumn col="5" id="col5.ds14775207" source="data" type="string">
<md:parameter id="col5.ds14775207.param144749">
<md:name>Deposit type</md:name>
<md:shortName>Deposit type</md:shortName>
</md:parameter>
<md:PI id="col5.ds14775207.pi10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:PI>
<md:caption>Deposit type</md:caption>
</md:matrixColumn>
<md:matrixColumn col="6" format="##0.0" id="col6.ds14775208" source="data" type="numeric">
<md:parameter id="col6.ds14775208.param78">
<md:name>Manganese</md:name>
<md:shortName>Mn</md:shortName>
<md:unit>%</md:unit>
<md:term endOffset="9" fragment="1" id="col6.ds14775208.param78.term38521" semanticURI="http://purl.obolibrary.org/obo/CHEBI_18291" startOffset="0" terminologyId="18" terminologyLabel="PAN-MicroBio">
<md:name>manganese</md:name>
<md:optionalName>Mn</md:optionalName>
<md:URI>https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18291</md:URI>
</md:term>
<md:term id="col6.ds14775208.param78.term43794" semanticURI="http://qudt.org/1.1/vocab/quantity#DimensionlessRatio" terminologyId="13" terminologyLabel="PAN-Quantity">
<md:name>Dimensionless Ratio</md:name>
<md:optionalName>ψ</md:optionalName>
</md:term>
</md:parameter>
<md:method id="col6.ds14775208.method14658">
<md:name>Atomic absorption spectrophotometry</md:name>
</md:method>
<md:PI id="col6.ds14775208.pi10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:PI>
<md:caption>Mn [%]</md:caption>
</md:matrixColumn>
<md:matrixColumn col="7" format="##0.00" id="col7.ds14775209" source="data" type="numeric">
<md:parameter id="col7.ds14775209.param77">
<md:name>Iron</md:name>
<md:shortName>Fe</md:shortName>
<md:unit>%</md:unit>
<md:term id="col7.ds14775209.param77.term43794" semanticURI="http://qudt.org/1.1/vocab/quantity#DimensionlessRatio" terminologyId="13" terminologyLabel="PAN-Quantity">
<md:name>Dimensionless Ratio</md:name>
<md:optionalName>ψ</md:optionalName>
</md:term>
</md:parameter>
<md:method id="col7.ds14775209.method14658">
<md:name>Atomic absorption spectrophotometry</md:name>
</md:method>
<md:PI id="col7.ds14775209.pi10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:PI>
<md:caption>Fe [%]</md:caption>
</md:matrixColumn>
<md:matrixColumn col="8" format="###0" id="col8.ds14775210" source="data" type="numeric">
<md:parameter id="col8.ds14775210.param88">
<md:name>Phosphorus</md:name>
<md:shortName>P</md:shortName>
<md:unit>mg/kg</md:unit>
<md:term endOffset="10" fragment="1" id="col8.ds14775210.param88.term39985" startOffset="0" terminologyId="18" terminologyLabel="PAN-MicroBio">
<md:name>phosphorus</md:name>
</md:term>
</md:parameter>
<md:method id="col8.ds14775210.method14658">
<md:name>Atomic absorption spectrophotometry</md:name>
</md:method>
<md:PI id="col8.ds14775210.pi10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:PI>
<md:caption>P [mg/kg]</md:caption>
</md:matrixColumn>
<md:matrixColumn col="9" format="###0" id="col9.ds14775211" source="data" type="numeric">
<md:parameter id="col9.ds14775211.param85">
<md:name>Cobalt</md:name>
<md:shortName>Co</md:shortName>
<md:unit>mg/kg</md:unit>
<md:term endOffset="6" fragment="1" id="col9.ds14775211.param85.term44327" startOffset="0" terminologyId="18" terminologyLabel="PAN-MicroBio">
<md:name>cobalt</md:name>
</md:term>
</md:parameter>
<md:method id="col9.ds14775211.method14658">
<md:name>Atomic absorption spectrophotometry</md:name>
</md:method>
<md:PI id="col9.ds14775211.pi10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:PI>
<md:caption>Co [mg/kg]</md:caption>
</md:matrixColumn>
<md:matrixColumn col="10" format="#0.000" id="col10.ds14775212" source="data" type="numeric">
<md:parameter id="col10.ds14775212.param33179">
<md:name>Copper</md:name>
<md:shortName>Cu</md:shortName>
<md:unit>%</md:unit>
<md:URI>http://www.mindat.org/min-1209.html</md:URI>
<md:term endOffset="6" fragment="1" id="col10.ds14775212.param33179.term40561" startOffset="0" terminologyId="18" terminologyLabel="PAN-MicroBio">
<md:name>copper</md:name>
</md:term>
<md:term id="col10.ds14775212.param33179.term43794" semanticURI="http://qudt.org/1.1/vocab/quantity#DimensionlessRatio" terminologyId="13" terminologyLabel="PAN-Quantity">
<md:name>Dimensionless Ratio</md:name>
<md:optionalName>ψ</md:optionalName>
</md:term>
</md:parameter>
<md:method id="col10.ds14775212.method14658">
<md:name>Atomic absorption spectrophotometry</md:name>
</md:method>
<md:PI id="col10.ds14775212.pi10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:PI>
<md:caption>Cu [%]</md:caption>
</md:matrixColumn>
<md:matrixColumn col="11" format="#0.000" id="col11.ds14775213" source="data" type="numeric">
<md:parameter id="col11.ds14775213.param34618">
<md:name>Nickel</md:name>
<md:shortName>Ni</md:shortName>
<md:unit>%</md:unit>
<md:URI>http://www.mindat.org/min-2895.html</md:URI>
<md:term endOffset="6" fragment="1" id="col11.ds14775213.param34618.term40559" startOffset="0" terminologyId="18" terminologyLabel="PAN-MicroBio">
<md:name>nickel</md:name>
</md:term>
<md:term id="col11.ds14775213.param34618.term43794" semanticURI="http://qudt.org/1.1/vocab/quantity#DimensionlessRatio" terminologyId="13" terminologyLabel="PAN-Quantity">
<md:name>Dimensionless Ratio</md:name>
<md:optionalName>ψ</md:optionalName>
</md:term>
</md:parameter>
<md:method id="col11.ds14775213.method14658">
<md:name>Atomic absorption spectrophotometry</md:name>
</md:method>
<md:PI id="col11.ds14775213.pi10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:PI>
<md:caption>Ni [%]</md:caption>
</md:matrixColumn>
<md:matrixColumn col="12" format="###0.0" id="col12.ds14775214" source="data" type="numeric">
<md:parameter id="col12.ds14775214.param684">
<md:name>Lanthanum</md:name>
<md:shortName>La</md:shortName>
<md:unit>mg/kg</md:unit>
<md:term endOffset="9" fragment="1" id="col12.ds14775214.param684.term42029" startOffset="0" terminologyId="18" terminologyLabel="PAN-MicroBio">
<md:name>lanthanum</md:name>
<md:optionalName>La</md:optionalName>
</md:term>
</md:parameter>
<md:method id="col12.ds14775214.method14658">
<md:name>Atomic absorption spectrophotometry</md:name>
</md:method>
<md:PI id="col12.ds14775214.pi10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:PI>
<md:caption>La [mg/kg]</md:caption>
</md:matrixColumn>
<md:matrixColumn col="13" format="###0.0" id="col13.ds14775215" source="data" type="numeric">
<md:parameter id="col13.ds14775215.param685">
<md:name>Cerium</md:name>
<md:shortName>Ce</md:shortName>
<md:unit>mg/kg</md:unit>
<md:term endOffset="6" fragment="1" id="col13.ds14775215.param685.term1073359" semanticURI="http://purl.obolibrary.org/obo/CHEBI_33369" startOffset="0" terminologyId="16" terminologyLabel="ChEBI">
<md:name>cerium</md:name>
<md:URI>http://purl.obolibrary.org/obo/CHEBI_33369</md:URI>
</md:term>
</md:parameter>
<md:method id="col13.ds14775215.method14658">
<md:name>Atomic absorption spectrophotometry</md:name>
</md:method>
<md:PI id="col13.ds14775215.pi10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:PI>
<md:caption>Ce [mg/kg]</md:caption>
</md:matrixColumn>
<md:matrixColumn col="14" format="##0.0" id="col14.ds14775216" source="data" type="numeric">
<md:parameter id="col14.ds14775216.param687">
<md:name>Neodymium</md:name>
<md:shortName>Nd</md:shortName>
<md:unit>mg/kg</md:unit>
<md:term endOffset="9" fragment="1" id="col14.ds14775216.param687.term42031" startOffset="0" terminologyId="18" terminologyLabel="PAN-MicroBio">
<md:name>neodymium</md:name>
<md:optionalName>Nd</md:optionalName>
</md:term>
</md:parameter>
<md:method id="col14.ds14775216.method14658">
<md:name>Atomic absorption spectrophotometry</md:name>
</md:method>
<md:PI id="col14.ds14775216.pi10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:PI>
<md:caption>Nd [mg/kg]</md:caption>
</md:matrixColumn>
<md:matrixColumn col="15" format="##0.0" id="col15.ds14775217" source="data" type="numeric">
<md:parameter id="col15.ds14775217.param688">
<md:name>Samarium</md:name>
<md:shortName>Sm</md:shortName>
<md:unit>mg/kg</md:unit>
<md:term endOffset="8" fragment="1" id="col15.ds14775217.param688.term38532" semanticURI="http://purl.obolibrary.org/obo/CHEBI_33374" startOffset="0" terminologyId="18" terminologyLabel="PAN-MicroBio">
<md:name>samarium</md:name>
<md:optionalName>Sm</md:optionalName>
<md:URI>https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:33374</md:URI>
</md:term>
</md:parameter>
<md:method id="col15.ds14775217.method14658">
<md:name>Atomic absorption spectrophotometry</md:name>
</md:method>
<md:PI id="col15.ds14775217.pi10780">
<md:lastName>Elderfield</md:lastName>
<md:firstName>Henry</md:firstName>
<md:eMail>he101@esc.cam.ac.uk</md:eMail>
<md:URI>http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield</md:URI>
</md:PI>
<md:caption>Sm [mg/kg]</md:caption>
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