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<gco:CharacterString>Annotated record of the detailed examination of Mn deposits from DSDP Leg 60 (Holes 452, 452A, 453, 454, 454A, 456, 456A, 458, 459B, 460, 460A, 461, 461A)</gco:CharacterString>
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<gco:CharacterString>Supplement to: Sharaskin, Anatoly; Packham, G H; Natland, James H; Nakamura, K; Meijer, Arend; Kling, Stanley; Horai, Ki-Iti; Francis, T J G; Ellis, C Howard; Bleil, Ulrich; Blanchet, R; Hussong, Donald M; Uyeda, Seiya (1982): Initial Reports of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, LX, 929 pp, https://doi.org/10.2973/dsdp.proc.60.1982</gco:CharacterString>
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<gco:CharacterString>Two consecutive drilling legs (Legs 59 and 60) were assigned to drill an east-west transect of sites along latitude 18°N, from the Mariana Basin of the Pacific Ocean to the oldest inactive island arcs and back-arc spreading basins of the Philippine Sea. The western (older, inactive) half of this transect (Philippine Sea, Palau-Kyushu Ridge, Parece Vela Basin, and the West Mariana Ridge-Sites 447-451) was drilled during Leg 59. The objective of Leg 60 was to sample the tectonically active eastern portion of the transect in a closely spaced series of holes across the presently opening back-arc basin (Mariana Trough, Site Survey Target SP-4: Sites 453-456), the Mariana arc itself (Site Survey Target SP-3b: Site 457), the Mariana fore-arc region (Site Survey Target SP-3, Sites 458 and 459), and deep within the Mariana Trench (Site Survey Target SP-2: Sites 460 and 461). In addition, one site (Site Survey Target SP-1: Site 452) was drilled on the Pacific plate seaward of the trench to obtain a reference section of sediments and oceanic crust being delivered to the trench.</gco:CharacterString>
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<LI_ProcessStep id="event12666">
<description>
<gco:CharacterString>EVENT LABEL: 60-456A * LATITUDE: 17.911800 * LONGITUDE: 145.181300 * DATE/TIME: 1978-04-12T00:00:00 * ELEVATION: -3586.0 m * PENETRATION: 159 m * RECOVERY: 37.5 m * LOCATION: North Pacific/SEDIMENT POND * CAMPAIGN: Leg60 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig</gco:CharacterString>
</description>
<rationale>
<gco:CharacterString>15 cores; 139.5 m cored; 0 m drilled; 26.9 % recovery</gco:CharacterString>
</rationale>
<dateTime>
<gco:DateTime>1978-04-12T00:00:00</gco:DateTime>
</dateTime>
</LI_ProcessStep>
</processStep>
<processStep>
<LI_ProcessStep id="event12668">
<description>
<gco:CharacterString>EVENT LABEL: 60-458 * LATITUDE: 17.864200 * LONGITUDE: 146.934300 * DATE/TIME: 1978-04-18T00:00:00 * ELEVATION: -3447.0 m * PENETRATION: 465.5 m * RECOVERY: 97.6 m * LOCATION: North Pacific/TRENCH * CAMPAIGN: Leg60 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig</gco:CharacterString>
</description>
<rationale>
<gco:CharacterString>46 cores; 437 m cored; 28.5 m drilled; 22.3 % recovery</gco:CharacterString>
</rationale>
<dateTime>
<gco:DateTime>1978-04-18T00:00:00</gco:DateTime>
</dateTime>
</LI_ProcessStep>
</processStep>
<processStep>
<LI_ProcessStep id="event12671">
<description>
<gco:CharacterString>EVENT LABEL: 60-459B * LATITUDE: 17.862500 * LONGITUDE: 147.301500 * DATE/TIME: 1978-04-25T00:00:00 * ELEVATION: -4121.0 m * PENETRATION: 691.5 m * RECOVERY: 176.2 m * LOCATION: North Pacific/SEDIMENT POND * CAMPAIGN: Leg60 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig</gco:CharacterString>
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<rationale>
<gco:CharacterString>68 cores; 644 m cored; 28.5 m drilled; 27.4 % recovery</gco:CharacterString>
</rationale>
<dateTime>
<gco:DateTime>1978-04-25T00:00:00</gco:DateTime>
</dateTime>
</LI_ProcessStep>
</processStep>
<processStep>
<LI_ProcessStep id="event12672">
<description>
<gco:CharacterString>EVENT LABEL: 60-460 * LATITUDE: 17.669000 * LONGITUDE: 147.598700 * DATE/TIME: 1978-05-04T00:00:00 * ELEVATION: -6452.0 m * PENETRATION: 85 m * RECOVERY: 42.8 m * LOCATION: North Pacific/SEDIMENT POND * CAMPAIGN: Leg60 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig</gco:CharacterString>
</description>
<rationale>
<gco:CharacterString>10 cores; 84.5 m cored; 9.5 m drilled; 50.7 % recovery</gco:CharacterString>
</rationale>
<dateTime>
<gco:DateTime>1978-05-04T00:00:00</gco:DateTime>
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</LI_ProcessStep>
</processStep>
<processStep>
<LI_ProcessStep id="event12673">
<description>
<gco:CharacterString>EVENT LABEL: 60-460A * LATITUDE: 17.667000 * LONGITUDE: 147.586000 * DATE/TIME: 1978-05-04T00:00:00 * ELEVATION: -6445.0 m * PENETRATION: 99.6 m * RECOVERY: 37.2 m * LOCATION: North Pacific/SEDIMENT POND * CAMPAIGN: Leg60 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig</gco:CharacterString>
</description>
<rationale>
<gco:CharacterString>12 cores; 99.6 m cored; 0 m drilled; 37.3 % recovery</gco:CharacterString>
</rationale>
<dateTime>
<gco:DateTime>1978-05-04T00:00:00</gco:DateTime>
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</processStep>
<processStep>
<LI_ProcessStep id="event12674">
<description>
<gco:CharacterString>EVENT LABEL: 60-461 * LATITUDE: 17.767500 * LONGITUDE: 147.686300 * DATE/TIME: 1978-05-09T00:00:00 * ELEVATION: -7034.0 m * PENETRATION: 20.5 m * RECOVERY: 8.6 m * LOCATION: North Pacific/TRENCH * CAMPAIGN: Leg60 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig</gco:CharacterString>
</description>
<rationale>
<gco:CharacterString>3 cores; 20.5 m cored; 0 m drilled; 41.8 % recovery</gco:CharacterString>
</rationale>
<dateTime>
<gco:DateTime>1978-05-09T00:00:00</gco:DateTime>
</dateTime>
</LI_ProcessStep>
</processStep>
<processStep>
<LI_ProcessStep id="event12675">
<description>
<gco:CharacterString>EVENT LABEL: 60-461A * LATITUDE: 17.767000 * LONGITUDE: 147.687700 * DATE/TIME: 1978-05-09T00:00:00 * ELEVATION: -7034.0 m * PENETRATION: 15.5 m * RECOVERY: 7.3 m * LOCATION: North Pacific/TRENCH * CAMPAIGN: Leg60 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig</gco:CharacterString>
</description>
<rationale>
<gco:CharacterString>2 cores; 15.5 m cored; 0 m drilled; 46.8 % recovery</gco:CharacterString>
</rationale>
<dateTime>
<gco:DateTime>1978-05-09T00:00:00</gco:DateTime>
</dateTime>
</LI_ProcessStep>
</processStep>
<source>
<LI_Source id="ref67195">
<description>
<gco:CharacterString>Source</gco:CharacterString>
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<sourceCitation>
<CI_Citation>
<title>
<gco:CharacterString>The NOAA and MMS Marine Minerals Geochemical Database</gco:CharacterString>
</title>
<date>
<CI_Date>
<date>
<gco:Date>1992-01-01</gco:Date>
</date>
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<CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</CI_DateTypeCode>
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<individualName>
<gco:CharacterString>Grant, John Bruce</gco:CharacterString>
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</citedResponsibleParty>
<citedResponsibleParty>
<CI_ResponsibleParty id="ref67195.author568">
<individualName>
<gco:CharacterString>Moore, Carla J</gco:CharacterString>
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<CI_Address>
<electronicMailAddress>
<gco:CharacterString>carla.j.moore@noaa.gov</gco:CharacterString>
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<URL>https://orcid.org/0000-0002-2610-8648</URL>
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<citedResponsibleParty>
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<individualName>
<gco:CharacterString>Alameddin, George</gco:CharacterString>
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<citedResponsibleParty>
<CI_ResponsibleParty id="ref67195.author53900">
<individualName>
<gco:CharacterString>Chen, Kuiying</gco:CharacterString>
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<citedResponsibleParty>
<CI_ResponsibleParty id="ref67195.author53901">
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<source>
<LI_Source id="ref67263">
<description>
<gco:CharacterString>Further details</gco:CharacterString>
</description>
<sourceCitation>
<CI_Citation>
<title>
<gco:CharacterString>The NOAA and MMS Marine Minerals Bibliography</gco:CharacterString>
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<date>
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<date>
<gco:Date>1992-01-01</gco:Date>
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<CI_ResponsibleParty id="ref67263.author21391">
<individualName>
<gco:CharacterString>Warnken, Robin R</gco:CharacterString>
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<contactInfo>
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<address>
<CI_Address>
<electronicMailAddress>
<gco:CharacterString>rrw@luna.ngdc.noaa.gov</gco:CharacterString>
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<role>
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<citedResponsibleParty>
<CI_ResponsibleParty id="ref67263.author53916">
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<gco:CharacterString>Virden, William T</gco:CharacterString>
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