<?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_961578</Entry_ID>
<Entry_Title>Chemical composition of manganese nodules and ferromanganese crusts using Atomic absorption analysis</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Kennecott Corporation</Dataset_Creator>
<Dataset_Title>Chemical composition of manganese nodules and ferromanganese crusts using Atomic absorption analysis</Dataset_Title>
<Dataset_Release_Date>2023-08-16</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.961578</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<Last_Name>Kennecott Corporation</Last_Name>
</Personnel>
<Discipline>
<Discipline_Name>Earth Science</Discipline_Name>
</Discipline>
<Parameters>
<Detailed_Variable>Event label</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Latitude of event</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Longitude of event</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Elevation of event</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Identification</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Deposit type</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>Nickel</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Copper</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Cobalt</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Titanium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Zinc</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Lead</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Aluminium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Magnesium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Phosphorus</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Potassium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Sodium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Calcium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Barium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Carbon, organic</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Arsenic</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Beryllium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Bismuth</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Cadmium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Chromium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Gallium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Lithium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Molybdenum</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Niobium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Rubidium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Sulfur</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Scandium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Tin</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Strontium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Thorium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Thallium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Vanadium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Tungsten</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Yttrium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Zirconium</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Shape</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Texture</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Size</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Sediment type</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Sample type</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
<Keyword>Dredge</Keyword>
<Keyword>Dredge, rock</Keyword>
<Keyword>Geochemistry</Keyword>
<Keyword>manganese micronodule</Keyword>
<Keyword>manganese nodule</Keyword>
<Keyword>ocean</Keyword>
<Keyword>Piston corer</Keyword>
<Keyword>RC13</Keyword>
<Keyword>RC13-122</Keyword>
<Keyword>RC13-124</Keyword>
<Keyword>RC13-132</Keyword>
<Keyword>RC13-181</Keyword>
<Keyword>RC14</Keyword>
<Keyword>RC14-1</Keyword>
<Keyword>RC14-18</Keyword>
<Keyword>RC14-2</Keyword>
<Keyword>RC14-48</Keyword>
<Keyword>RC14-55</Keyword>
<Keyword>RC14-56</Keyword>
<Keyword>RC14-58</Keyword>
<Keyword>RC14-59</Keyword>
<Keyword>RC14-60</Keyword>
<Keyword>RC15</Keyword>
<Keyword>RC15-107</Keyword>
<Keyword>RC15-10RD</Keyword>
<Keyword>RC15-113</Keyword>
<Keyword>RC15-118</Keyword>
<Keyword>RC15-122</Keyword>
<Keyword>RC15-13</Keyword>
<Keyword>RC15-134</Keyword>
<Keyword>RC15-135</Keyword>
<Keyword>RC15-136</Keyword>
<Keyword>RC15-149</Keyword>
<Keyword>RC15-16RD</Keyword>
<Keyword>RC15-18RD</Keyword>
<Keyword>RC15-190</Keyword>
<Keyword>RC15-191</Keyword>
<Keyword>RC15-197</Keyword>
<Keyword>RC15-199</Keyword>
<Keyword>RC15-19RD</Keyword>
<Keyword>RC15-1RD</Keyword>
<Keyword>RC15-200</Keyword>
<Keyword>RC15-203</Keyword>
<Keyword>RC15-205</Keyword>
<Keyword>RC15-20RD</Keyword>
<Keyword>RC15-21RD</Keyword>
<Keyword>RC15-22RD</Keyword>
<Keyword>RC15-23RD</Keyword>
<Keyword>RC15-24RD</Keyword>
<Keyword>RC15-25RD</Keyword>
<Keyword>RC15-27RD</Keyword>
<Keyword>RC15-28RD</Keyword>
<Keyword>RC15-29RD</Keyword>
<Keyword>RC15-2RD</Keyword>
<Keyword>RC15-4RD</Keyword>
<Keyword>RC15-6</Keyword>
<Keyword>RC15-7RD</Keyword>
<Keyword>RC15-8</Keyword>
<Keyword>RC15-8RD</Keyword>
<Keyword>RC16</Keyword>
<Keyword>RC16-137</Keyword>
<Keyword>RC16-160</Keyword>
<Keyword>RC16-187P</Keyword>
<Keyword>RC16-188</Keyword>
<Keyword>RC16-191</Keyword>
<Keyword>RC16-193</Keyword>
<Keyword>RC16-198</Keyword>
<Keyword>RC16-200</Keyword>
<Keyword>RC16-203</Keyword>
<Keyword>RC16-204</Keyword>
<Keyword>RC16-74</Keyword>
<Keyword>RC17</Keyword>
<Keyword>RC17-165</Keyword>
<Keyword>RC17-195</Keyword>
<Keyword>RC17-196</Keyword>
<Keyword>RC17-37</Keyword>
<Keyword>RC17-41</Keyword>
<Keyword>RC17-67</Keyword>
<Keyword>RC17-68</Keyword>
<Keyword>RC17-73</Keyword>
<Keyword>RC17-76</Keyword>
<Keyword>RC17-84</Keyword>
<Keyword>RC17-85</Keyword>
<Keyword>RC17-86</Keyword>
<Keyword>RC17-90</Keyword>
<Keyword>Sediment</Keyword>
<Keyword>Trigger corer</Keyword>
<Keyword>V22</Keyword>
<Keyword>V22-5RD</Keyword>
<Keyword>V28</Keyword>
<Keyword>V28-103</Keyword>
<Keyword>V28-10RD</Keyword>
<Keyword>V28-11RD</Keyword>
<Keyword>V28-129</Keyword>
<Keyword>V28-12RD</Keyword>
<Keyword>V28-14RD</Keyword>
<Keyword>V28-150</Keyword>
<Keyword>V28-155</Keyword>
<Keyword>V28-156</Keyword>
<Keyword>V28-157</Keyword>
<Keyword>V28-15RD</Keyword>
<Keyword>V28-165</Keyword>
<Keyword>V28-166</Keyword>
<Keyword>V28-167</Keyword>
<Keyword>V28-188</Keyword>
<Keyword>V28-189</Keyword>
<Keyword>V28-192</Keyword>
<Keyword>V28-194</Keyword>
<Keyword>V28-196</Keyword>
<Keyword>V28-247</Keyword>
<Keyword>V28-250</Keyword>
<Keyword>V28-251</Keyword>
<Keyword>V28-253</Keyword>
<Keyword>V28-260</Keyword>
<Keyword>V28-293</Keyword>
<Keyword>V28-347</Keyword>
<Keyword>V28-8RD</Keyword>
<Keyword>V29</Keyword>
<Keyword>V29-107</Keyword>
<Keyword>V29-108</Keyword>
<Keyword>V29-109</Keyword>
<Keyword>V29-115</Keyword>
<Keyword>V29-116</Keyword>
<Keyword>V29-124</Keyword>
<Keyword>V29-125</Keyword>
<Keyword>V29-32</Keyword>
<Keyword>V29-34</Keyword>
<Keyword>V29-38</Keyword>
<Keyword>V29-41</Keyword>
<Keyword>V29-4RD</Keyword>
<Keyword>V29-5RD</Keyword>
<Keyword>V29-6</Keyword>
<Keyword>V29-62</Keyword>
<Keyword>V29-75</Keyword>
<Keyword>V29-8</Keyword>
<Keyword>V29-80</Keyword>
<Keyword>V29-82</Keyword>
<Keyword>V29-83</Keyword>
<Keyword>V29-85</Keyword>
<Keyword>V29-87</Keyword>
<Keyword>V31</Keyword>
<Keyword>V31-101</Keyword>
<Keyword>V31-115</Keyword>
<Keyword>V31-61</Keyword>
<Keyword>V31-64</Keyword>
<Keyword>V31-68</Keyword>
<Keyword>V31-77</Keyword>
<Keyword>V31-80</Keyword>
<Keyword>V31-81</Keyword>
<Keyword>V31-82</Keyword>
<Keyword>V31-84</Keyword>
<Keyword>V31-88</Keyword>
<Sensor_Name>
<Long_Name>Atomic absorption spectrometry (AAS)</Long_Name>
</Sensor_Name>
<Source_Name>
<Long_Name>Robert Conrad</Long_Name>
</Source_Name>
<Source_Name>
<Long_Name>Vema</Long_Name>
</Source_Name>
<Temporal_Coverage>
<Start_Date>1966-03-03</Start_Date>
<Stop_Date>1974-12-08</Stop_Date>
</Temporal_Coverage>
<Data_Set_Progress>Complete</Data_Set_Progress>
<Spatial_Coverage>
<Southernmost_Latitude>-55.642</Southernmost_Latitude>
<Northernmost_Latitude>38.538</Northernmost_Latitude>
<Westernmost_Longitude>-179.3333</Westernmost_Longitude>
<Easternmost_Longitude>148.43</Easternmost_Longitude>
<Minimum_Depth>0.0 m (DEPTH, sediment/rock)</Minimum_Depth>
<Maximum_Depth>9.37 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-4.0: Creative Commons Attribution 4.0 International</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>3070 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Reference>Kennecott Corporation (1976): Manganese nodule analyses done by Kennecott Exploration, Inc., Samples from VEMA cruises 29-32 Robert D. Conrad 15-18, 1973-1976 (unpublished).</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>In the mid 1970s Kennecott Exploration, Inc. conducted various systematic studies on the chemical composition of manganese nodules and crusts in order to determine the variability of their composition. They ultimately prepared a "normalised" manganese sample numbered GRLD-126 (see: Meylan, Maurice A (2022): Kennecott Standard GRLD-126 manganese nodule replicate Atomic absorption spectrophotometry (AAS) analyses, https://doi.pangaea.de/10.1594/PANGAEA.948422). The present dataset compiled by NOAA-NCEI is devoted to the extensive analysis of mostly buried in cores manganese deposits recovered by the R/V Robert Conrad and the R/V Vema from the Lamont-Doherty Earth Observatory (LDEO). Samples were analysed by the atomic absorption spectrophotometry by Kennecott Exploration, Inc. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.961578"! ** 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://www.mindat.org/min-1209.html</URL>
<Description>Copper</Description>
</Related_URL>
<Related_URL>
<URL>http://www.mindat.org/min-2358.html</URL>
<Description>Lead</Description>
</Related_URL>
<Related_URL>
<URL>http://www.mindat.org/min-2895.html</URL>
<Description>Nickel</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/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://wiki.pangaea.de/wiki/NOAA-MMS</URL>
<Description>NOAA-MMS</Description>
</Related_URL>
<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date>2023-08-16</DIF_Creation_Date>
<Last_DIF_Revision_Date>2026-04-02</Last_DIF_Revision_Date>
</DIF>
