<?xml version="1.0" encoding="UTF-8"?><!--*** Generated from internal PANGAEA metadata schema by dif.xslt ***--><DIF xsi:schemaLocation="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/ http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v9.4.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/">
<Entry_ID>PANGAEA_859530</Entry_ID>
<Entry_Title>Chemical Analyses of manganese nodules ferromanganese crust from the World Ocean</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Willis, J P</Dataset_Creator>
<Dataset_Title>Chemical Analyses of manganese nodules ferromanganese crust from the World Ocean</Dataset_Title>
<Dataset_Release_Date>1970</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.859530</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<First_Name>J P</First_Name>
<Last_Name>Willis</Last_Name>
</Personnel>
<Discipline>
<Discipline_Name>Earth Science</Discipline_Name>
</Discipline>
<Parameters>
<Detailed_Variable>Event label</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Identification</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Sample code/label</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>DEPTH, sediment/rock</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Manganese</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Iron</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Cobalt</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Nickel</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Copper</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Zinc</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Gallium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Lead</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Strontium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Yttrium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Zirconium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Niobium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Molybdenum</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Arsenic</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Sulfur, total</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Calcium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Phosphorus pentoxide</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Silicon dioxide</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Thallium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Barium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Deposit type</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Substrate type</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Size</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Mass, netto</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Description</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
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<Keyword>ABR_Cruise7</Keyword>
<Keyword>ABR7_368-C</Keyword>
<Keyword>ABR7_369-D</Keyword>
<Keyword>ABR7_375-G</Keyword>
<Keyword>ABR7_384-C</Keyword>
<Keyword>ABR7_386-B</Keyword>
<Keyword>ABR7_387-C</Keyword>
<Keyword>AFII-A1254</Keyword>
<Keyword>AFII-A316</Keyword>
<Keyword>AFII-A322</Keyword>
<Keyword>Agassiz Trawl</Keyword>
<Keyword>ALB-13</Keyword>
<Keyword>ALB-173</Keyword>
<Keyword>Albatross1899-1900</Keyword>
<Keyword>Albatross1904-1905</Keyword>
<Keyword>ALBTR-13</Keyword>
<Keyword>ALBTR-173</Keyword>
<Keyword>ALBTR-4658</Keyword>
<Keyword>AT150</Keyword>
<Keyword>AT150-008D</Keyword>
<Keyword>AT26601</Keyword>
<Keyword>AT266-45</Keyword>
<Keyword>CASC-5D</Keyword>
<Keyword>CASCADIA</Keyword>
<Keyword>Core</Keyword>
<Keyword>DOWNWIND-H</Keyword>
<Keyword>Dredge</Keyword>
<Keyword>Dredge, chain bag</Keyword>
<Keyword>Dredge, rock</Keyword>
<Keyword>DWHD16</Keyword>
<Keyword>DWHD72</Keyword>
<Keyword>ELT14</Keyword>
<Keyword>ELT14.008-PC</Keyword>
<Keyword>ENDV</Keyword>
<Keyword>ENDV_D5</Keyword>
<Keyword>ENDV_F116</Keyword>
<Keyword>ENDV_F127</Keyword>
<Keyword>ENDV_F129</Keyword>
<Keyword>ENDV_F132</Keyword>
<Keyword>FANBD-20D</Keyword>
<Keyword>FANBD-25D</Keyword>
<Keyword>FANFARE-B</Keyword>
<Keyword>GAL_1950-1952_Denmark__Campaign</Keyword>
<Keyword>GALT-179</Keyword>
<Keyword>GALT-182</Keyword>
<Keyword>GALT-469</Keyword>
<Keyword>GALT-494</Keyword>
<Keyword>GALT-574</Keyword>
<Keyword>GALT-658</Keyword>
<Keyword>GALT-724</Keyword>
<Keyword>Grab</Keyword>
<Keyword>Gravity corer</Keyword>
<Keyword>GSS_536_564</Keyword>
<Keyword>GSS_537_551</Keyword>
<Keyword>GSS_538</Keyword>
<Keyword>GSS_545</Keyword>
<Keyword>GSS_556</Keyword>
<Keyword>GSS_574</Keyword>
<Keyword>John_Murray_Expedition</Keyword>
<Keyword>MABAH-166</Keyword>
<Keyword>Monegasque Trawl</Keyword>
<Keyword>MONSOON</Keyword>
<Keyword>MSN-47G</Keyword>
<Keyword>NIOE-135</Keyword>
<Keyword>NIOE-42</Keyword>
<Keyword>Northern_Holiday</Keyword>
<Keyword>NTHL02HO-010PH</Keyword>
<Keyword>NTHL-10</Keyword>
<Keyword>Piston corer</Keyword>
<Keyword>TH1</Keyword>
<Keyword>TH1-TR4</Keyword>
<Keyword>TH1-TR6</Keyword>
<Keyword>Trawl net</Keyword>
<Keyword>V15</Keyword>
<Keyword>V15-125SBT</Keyword>
<Keyword>V19</Keyword>
<Keyword>V19-232</Keyword>
<Keyword>VERMILION_SEA</Keyword>
<Keyword>VS BII-35</Keyword>
<Keyword>VSS35D</Keyword>
<Keyword>WHOI-A-105</Keyword>
<Keyword>Wired profile sonde</Keyword>
<Sensor_Name>
<Long_Name>X-ray fluorescence (XRF)</Long_Name>
</Sensor_Name>
<Source_Name>
<Long_Name>Anton Bruun</Long_Name>
</Source_Name>
<Source_Name>
<Long_Name>Albatross (1882-1921)</Long_Name>
</Source_Name>
<Source_Name>
<Long_Name>Atlantis (1931)</Long_Name>
</Source_Name>
<Source_Name>
<Long_Name>Epce</Long_Name>
</Source_Name>
<Source_Name>
<Long_Name>Horizon</Long_Name>
</Source_Name>
<Source_Name>
<Long_Name>Eltanin</Long_Name>
</Source_Name>
<Source_Name>
<Long_Name>HMNZS Endeavour (1944)</Long_Name>
</Source_Name>
<Source_Name>
<Long_Name>Spencer F. Baird</Long_Name>
</Source_Name>
<Source_Name>
<Long_Name>Galathea</Long_Name>
</Source_Name>
<Source_Name>
<Long_Name>Mabahiss (1933)</Long_Name>
</Source_Name>
<Source_Name>
<Long_Name>Argo</Long_Name>
</Source_Name>
<Source_Name>
<Long_Name>Theta</Long_Name>
</Source_Name>
<Source_Name>
<Long_Name>Vema</Long_Name>
</Source_Name>
<Temporal_Coverage>
<Start_Date>1904-11-14</Start_Date>
<Stop_Date>1964-09-05</Stop_Date>
</Temporal_Coverage>
<Data_Set_Progress>Complete</Data_Set_Progress>
<Spatial_Coverage>
<Southernmost_Latitude>-59.667</Southernmost_Latitude>
<Northernmost_Latitude>42.753</Northernmost_Latitude>
<Westernmost_Longitude>16.9</Westernmost_Longitude>
<Easternmost_Longitude>-43.41660000000002</Easternmost_Longitude>
<Minimum_Depth>0.0 m (DEPTH, sediment/rock)</Minimum_Depth>
<Maximum_Depth>17.1 m (DEPTH, sediment/rock)</Maximum_Depth>
</Spatial_Coverage>
<Project>
<Short_Name>NOAA-MMS</Short_Name>
<Long_Name>NOAA and MMS Marine Minerals Geochemical Database</Long_Name>
</Project>
<Access_Constraints>unrestricted</Access_Constraints>
<Use_Constraints>CC-BY-3.0: Creative Commons Attribution 3.0 Unported</Use_Constraints>
<Data_Set_Language>English</Data_Set_Language>
<Data_Center>
<Data_Center_Name>
<Short_Name>PANGAEA</Short_Name>
<Long_Name>Data Publisher for Earth &amp; Environmental Science</Long_Name>
</Data_Center_Name>
<Data_Center_URL>https://www.pangaea.de/</Data_Center_URL>
<Personnel>
<Role>Data Center Contact</Role>
<First_Name>Michael</First_Name>
<Last_Name>Diepenbroek</Last_Name>
<Email>info@pangaea.de</Email>
<Contact_Address>
<Address>Leobener Str.</Address>
<City>Bremen</City>
<Province_or_State>Bremen</Province_or_State>
<Postal_Code>28359</Postal_Code>
<Country>Germany</Country>
</Contact_Address>
</Personnel>
</Data_Center>
<Distribution>
<Distribution_Media>online</Distribution_Media>
<Distribution_Size>1370 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Reference>Willis, J P (1970): Investigations on the composition of manganese nodules with particular reference to certain trace elements [thesis]. Master Thesis, University of Cape Town, Dept. of Geochemistry, 111 pp</Reference>
<Reference>Grant, John Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V52Z13FT</Reference>
<Reference>Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V53X84KN</Reference>
<Summary>For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.859530"! ** Using X-ray fluorescence spectrometry major and trace elements have been estimated over a larhe variety of manganese nodules and crusts from th Pacific and the Indian Ocean. Of particular interest are the results for the Algulhas Plateau and the Mozambique Staight.
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.</Summary>
<Related_URL>
<URL>http://content.cdlib.org/view?docId=kt3g5002xz&amp;brand=calisphere</URL>
<Description>MONSOON</Description>
</Related_URL>
<Related_URL>
<URL>http://ezid.cdlib.org/id/doi:10.7284/905136</URL>
<Description>ELT14</Description>
</Related_URL>
<Related_URL>
<URL>http://scilib.ucsd.edu/sio/hist/SIOreference60-51.pdf</URL>
<Description>VERMILION_SEA</Description>
</Related_URL>
<Related_URL>
<URL>http://www.mindat.org/min-1209.html</URL>
<Description>Copper</Description>
</Related_URL>
<Related_URL>
<URL>http://www.mindat.org/min-2895.html</URL>
<Description>Nickel</Description>
</Related_URL>
<Related_URL>
<URL>http://www.ngdc.noaa.gov/mgg/curator/data/atlantis/at150/</URL>
<Description>AT150</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.7289/V52Z13FT</URL>
<Description>The NOAA and MMS Marine Minerals Geochemical Database</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.7289/V53X84KN</URL>
<Description>The NOAA and MMS Marine Minerals Bibliography</Description>
</Related_URL>
<Related_URL>
<URL>https://en.wikipedia.org/wiki/HMNZS_Endeavour_(1944)</URL>
<Description>HMNZS Endeavour (1944)</Description>
</Related_URL>
<Related_URL>
<URL>https://en.wikipedia.org/wiki/RV_Horizon</URL>
<Description>Horizon</Description>
</Related_URL>
<Related_URL>
<URL>https://en.wikipedia.org/wiki/Silicon_dioxide</URL>
<Description>Silicon dioxide</Description>
</Related_URL>
<Related_URL>
<URL>https://en.wikipedia.org/wiki/SV_Mandalay</URL>
<Description>Vema</Description>
</Related_URL>
<Related_URL>
<URL>https://en.wikipedia.org/wiki/Thallium</URL>
<Description>Thallium</Description>
</Related_URL>
<Related_URL>
<URL>https://en.wikipedia.org/wiki/USS_Albatross_(1882)</URL>
<Description>Albatross (1882-1921)</Description>
</Related_URL>
<Related_URL>
<URL>https://hdl.handle.net/1912/3884</URL>
<Description>ABR_Cruise7</Description>
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<URL>https://wiki.pangaea.de/wiki/NOAA-MMS</URL>
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<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date/>
<Last_DIF_Revision_Date>2026-04-30</Last_DIF_Revision_Date>
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