PANGAEA_957795 Average composition of manganese nodules from various size classes from Station U205 in the Tasman Sea Glasby, Geoffrey P; Stoffers, Peter; Grapes, R H; Plüger, W L; McKnight, D G; Main, W DeL Average composition of manganese nodules from various size classes from Station U205 in the Tasman Sea 2023-04-24 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.957795 Investigator Geoffrey P Glasby Earth Science Event label Latitude of event Longitude of event Elevation of event Identification Deposit type DEPTH, sediment/rock Lead Zinc Copper Nickel Cobalt Iron Manganese Titanium dioxide Calcium oxide Potassium oxide Phosphorus pentoxide Silicon dioxide Aluminium oxide Magnesium oxide Size Sample type geoscientificInformation Geochemistry manganese micronodule manganese nodule ocean Sediment Sledge TAN1982 TANG-U205 X-ray fluorescence spectrometry Tangaroa (1960) Complete -35.81 -35.81 156.53 156.53 0.0 m (DEPTH, sediment/rock) 0.0 m (DEPTH, sediment/rock) NOAA-MMS NOAA and MMS Marine Minerals Geochemical Database unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 216 data points text/tab-separated-values Glasby, Geoffrey P; Stoffers, Peter; Grapes, R H; Plüger, W L; McKnight, D G; Main, W DeL (1986): Manganese nodule occurrence in the Tasman Sea. New Zealand Journal of Marine and Freshwater Research, 20(3), 489-494, https://doi.org/10.1080/00288330.1986.9516168 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 Stoffers, Peter; Glasby, Geoffrey P; Plüger, W L; Walter, P (1983): Reconnaissance survey of the mineralogy and geochemistry of some New Zealand lake and nearshore sediments. New Zealand Journal of Marine and Freshwater Research, 17(4), 461-480, https://doi.org/10.1080/00288330.1983.9516020 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

Four hundred and twenty kilograms of manganese nodules were recovered at Station U205 in the Tasman Sea. They were sorted by size class. Representative subsets for each size class were chemically analysed and their avearge composition is presented in the published table. Samples were alaysed by X-ray fluorescence spectrometry. For this purpose, samples were ground to 80 mesh, dried at 105°C for at least 24 hours and fused with "Spectromelt A 12" (Merck 11802, containing 66% lithium tetraborate and 34% lithium metaborate). To prepare glass beads, 1 g of Mn nodule materail was mixed with 1 g of flux and heated in a RF-furnace for about 5 minutes. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.957795"! ** 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. 490 of the related publication.

http://www.mindat.org/min-1209.html Copper http://www.mindat.org/min-2358.html Lead http://www.mindat.org/min-2895.html Nickel http://www.mindat.org/min-4405.html Zinc https://doi.org/10.1080/00288330.1983.9516020 Reconnaissance survey of the mineralogy and geochemistry of some New Zealand lake and nearshore sediments https://doi.org/10.1080/00288330.1986.9516168 Manganese nodule occurrence in the Tasman Sea https://doi.org/10.7289/V52Z13FT The NOAA and MMS Marine Minerals Geochemical Database https://doi.org/10.7289/V53X84KN The NOAA and MMS Marine Minerals Bibliography https://en.wikipedia.org/wiki/Calcium_oxide Calcium oxide https://en.wikipedia.org/wiki/Silicon_dioxide Silicon dioxide https://en.wikipedia.org/wiki/Titanium_dioxide Titanium dioxide https://wiki.pangaea.de/wiki/NOAA-MMS NOAA-MMS DIF 9.4 2023-04-24 2026-04-30