<?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_961494</Entry_ID>
<Entry_Title>Chemical composition of manganese nodules from GH78-1 cruise</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Nakao, Seizo; Mochizuki, Tsunekazu; Terashima, Shigeru; Yuasa, Makoto; Moritani, Tomoyuki</Dataset_Creator>
<Dataset_Title>Chemical composition of manganese nodules from GH78-1 cruise</Dataset_Title>
<Dataset_Release_Date>2023-08-15</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.961494</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<First_Name>Tsunekazu</First_Name>
<Last_Name>Mochizuki</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>Copper</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Nickel</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Cobalt</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Lead</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Zinc</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Water in rock</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Size</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Shape</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Texture</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
<Keyword>Box corer</Keyword>
<Keyword>Free-fall grab</Keyword>
<Keyword>Geochemistry</Keyword>
<Keyword>GH78-1</Keyword>
<Keyword>GH78-1-FG109-1</Keyword>
<Keyword>GH78-1-FG109-2</Keyword>
<Keyword>GH78-1-FG109-4</Keyword>
<Keyword>GH78-1-FG109-5</Keyword>
<Keyword>GH78-1-FG109-6</Keyword>
<Keyword>GH78-1-FG109-7</Keyword>
<Keyword>GH78-1-FG109-8</Keyword>
<Keyword>GH78-1-FG110-1</Keyword>
<Keyword>GH78-1-FG110-2</Keyword>
<Keyword>GH78-1-FG88-1</Keyword>
<Keyword>GH78-1-FG91-2</Keyword>
<Keyword>GH78-1-G604</Keyword>
<Keyword>GH78-1-G605</Keyword>
<Keyword>GH78-1-G613</Keyword>
<Keyword>GH78-1-G614</Keyword>
<Keyword>GH78-1-G615</Keyword>
<Keyword>GH78-1-G616</Keyword>
<Keyword>GH78-1-G617</Keyword>
<Keyword>GH78-1-G618</Keyword>
<Keyword>GH78-1-G619</Keyword>
<Keyword>GH78-1-G621</Keyword>
<Keyword>GH78-1-G622</Keyword>
<Keyword>GH78-1-G623</Keyword>
<Keyword>GH78-1-G624</Keyword>
<Keyword>GH78-1-G626</Keyword>
<Keyword>GH78-1-G627-2</Keyword>
<Keyword>GH78-1-G629</Keyword>
<Keyword>GH78-1-G632</Keyword>
<Keyword>GH78-1-G634</Keyword>
<Keyword>GH78-1-G636</Keyword>
<Keyword>GH78-1-G637</Keyword>
<Keyword>GH78-1-G640</Keyword>
<Keyword>GH78-1-G641</Keyword>
<Keyword>manganese micronodule</Keyword>
<Keyword>manganese nodule</Keyword>
<Keyword>ocean</Keyword>
<Keyword>Sediment</Keyword>
<Keyword>Station 1036</Keyword>
<Keyword>Station 1037</Keyword>
<Keyword>Station 1038A</Keyword>
<Keyword>Station 1039A</Keyword>
<Keyword>Station 1045</Keyword>
<Keyword>Station 1046</Keyword>
<Keyword>Station 1047</Keyword>
<Keyword>Station 1048</Keyword>
<Keyword>Station 1049</Keyword>
<Keyword>Station 1050</Keyword>
<Keyword>Station 1051</Keyword>
<Keyword>Station 1053</Keyword>
<Keyword>Station 1054</Keyword>
<Keyword>Station 1056</Keyword>
<Keyword>Station 1057-2</Keyword>
<Keyword>Station 1059</Keyword>
<Keyword>Station 1060</Keyword>
<Keyword>Station 1061</Keyword>
<Keyword>Station 1065</Keyword>
<Keyword>Station 1067</Keyword>
<Keyword>Station 1070</Keyword>
<Keyword>Station 1071</Keyword>
<Keyword>Station 1073</Keyword>
<Keyword>Station 1074</Keyword>
<Sensor_Name>
<Long_Name>Atomic absorption spectrophotometry</Long_Name>
</Sensor_Name>
<Sensor_Name>
<Long_Name>Wet chemistry</Long_Name>
</Sensor_Name>
<Source_Name>
<Long_Name>Hakurei-Maru (1974)</Long_Name>
</Source_Name>
<Temporal_Coverage>
<Start_Date>1978-01-19</Start_Date>
<Stop_Date>1978-02-26</Stop_Date>
</Temporal_Coverage>
<Data_Set_Progress>Complete</Data_Set_Progress>
<Spatial_Coverage>
<Southernmost_Latitude>7.485</Southernmost_Latitude>
<Northernmost_Latitude>12.9967</Northernmost_Latitude>
<Westernmost_Longitude>176.505</Westernmost_Longitude>
<Easternmost_Longitude>-178.9917</Easternmost_Longitude>
<Minimum_Depth>0.0 m (DEPTH, sediment/rock)</Minimum_Depth>
<Maximum_Depth>0.1 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-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>741 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Reference>Moritani, Tomoyuki; Nakao, Seizo (1981): Deep Sea Mineral Resources Investigation in the Western Part of Central Pacific Basin, January - March 1978 (GH78-1 Cruise). Geological Survey of Japan, Cruise Report, 17, 281 pp, https://www.gsj.jp/en/publications/cruise-rep/cruise17.html, https://download.pangaea.de/reference/119503/attachments/17-01.pdf</Reference>
<Reference>Nakao, Seizo; Mochizuki, Tsunekazu; Terashima, Shigeru; Yuasa, Makoto; Moritani, Tomoyuki (1981): Metal contents of manganese nodules from the GH78-1 area. in: Deep Sea Mineral Resources Investigation in the Western Part of Central Pacific Basin, January-March 1978 (GH78-1 Cruise), Geological Survey of Japan, Cruise Report, 226-236, https://www.gsj.jp/data/cruise-rep/17-14.pdf, https://download.pangaea.de/reference/119507/attachments/17-14.pdf</Reference>
<Reference>Yuasa, Makoto; Kato, Komi; Moritani, Tomoyuki (2023): Chemical composition of sediments from GH78-1 cruise [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.961491</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>Fifty-seven samples of manganese nodules from the GH78-1 area were analysed in bulk rock for major and some minor metal elements to provide the data for the evaluation of the chemical features of the nodules. Air-dried sample of 0.1 g was decomposed with a mixture of 5 ml of hydrochloric acid and 5 ml of nitric acid in a covered 50 ml beaker on a boiling bath for about 30 minutes. After cooling, the solution was filtered into a 100 ml calibrated flask and diluted to the mark with water. The analyses for Mn, Fe, Co, Ni, Cu, Zn and Pb were done by atomic absorption spectrometry. The total water was analyzed gravimetrically. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.961494"! ** 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 XIV-1, pp. 227-228 of the related publication.</Summary>
<Related_URL>
<URL>http://en.wikipedia.org/wiki/Box_corer</URL>
<Description>Box corer</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>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://doi.pangaea.de/10.1594/PANGAEA.961491</URL>
<Description>Chemical composition of sediments from GH78-1 cruise</Description>
</Related_URL>
<Related_URL>
<URL>https://wiki.pangaea.de/wiki/NOAA-MMS</URL>
<Description>NOAA-MMS</Description>
</Related_URL>
<Related_URL>
<URL>https://www.gsj.jp/data/cruise-rep/17-14.pdf</URL>
<Description>Metal contents of manganese nodules from the GH78-1 area</Description>
</Related_URL>
<Related_URL>
<URL>https://www.gsj.jp/en/publications/cruise-rep/cruise17.html</URL>
<Description>Deep Sea Mineral Resources Investigation in the Western Part of Central Pacific Basin, January - March 1978 (GH78-1 Cruise)</Description>
</Related_URL>
<Related_URL>
<URL>https://www.gsj.jp/en/publications/cruise-rep/cruise17.html</URL>
<Description>GH78-1</Description>
</Related_URL>
<Related_URL>
<URL>https://www.jodc.go.jp/JGOFS_DMO/testpage/Ships/Hakurei.htm</URL>
<Description>Hakurei-Maru (1974)</Description>
</Related_URL>
<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date>2023-08-15</DIF_Creation_Date>
<Last_DIF_Revision_Date>2026-04-02</Last_DIF_Revision_Date>
</DIF>
