de.pangaea.dataset872361 und dataset PANGAEA
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https://www.pangaea.de/ information pointOfContact 2026-04-30T22:50:38Z https://doi.pangaea.de/10.1594/PANGAEA.872361 <gco:CharacterString>(Fig 3, page 49) Variations with depth of the SMOW Relative Deuterium/Hydrogen Ratio (DeltaD) values of Pacific Ocean manganese deposits</gco:CharacterString> 1981-01-01 publication https://doi.org/10.1594/PANGAEA.872361 Hariya, Yu author Tsutsumi, Makoto author PANGAEA
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https://www.pangaea.de/ information publisher tableDigital Supplement to: Hariya, Yu; Tsutsumi, Makoto (1981): Hydrogen-isotopic composition of some hydrous manganese minerals. Chemical Geology, 34(1-2), 43-52, https://doi.org/10.1016/0009-2541(81)90070-X Initial data on the hydrogen-isotopic compositions in hydrous Mn minerals from various occurrences fall in a wide range from -298 to -84 per mil, relative to SMOW. DeltaD-values of todorokite and cryptomelane from Tertiary deposits show -89 and -150 per mil. 10 Angström-manganite and Delta-MnO2 from deep-sea nodules have relatively restricted DeltaD-values ranging from -96 to -84 per mil. The DeltaD-values for manganese bog ores from recent hot springs show almost -105 per mil. It is recognized that the isotopic values obtained for the deep-sea nodules and recent bog ores are slightly different ranged. Manganite and groutite are unique in their hydrogen-isotopic compositions, having the most depleted DeltaD-values ranging from -298 to -236 per mil. MnO(OH) minerals are more deuterium-depleted hydrous minerals than any other hydrothermal minerals from various ore deposits. Hydrogen-isotope fractionation factors between manganite and water were experimentally determined to be 0.7894, 0.7958 and 0.8078 at 150°, 200° and 250°C, respectively. the present experimental results indicate that if manganites were formed at temperatures below 250°C, under isotopic equilibrium conditions, most of the manganite mineralization in the Tertiary manganese deposits must have precipitated from meteoric hydrothermal solutions. completed Hariya, Yu principalInvestigator NOAA-MMS NOAA and MMS Marine Minerals Geochemical Database theme <gco:CharacterString>PANGAEA Project List</gco:CharacterString> 1995-01-01 creation PANGAEA
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https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-3.0: Creative Commons Attribution 3.0 Unported textTable und geoscientificInformation 149.683344 -175.035 8.97 12.533354 1973-08-15T00:00:00 1977-02-26T00:00:00 0.0 0.0 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. Event label thematicClassification Identification thematicClassification DEPTH, sediment/rock physicalMeasurement m m δ Deuterium physicalMeasurement Isotope ratio mass spectrometry ‰ SMOW ‰ SMOW Deposit type thematicClassification text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.872361?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: GH77-1-D212 * LATITUDE: 9.985000 * LONGITUDE: -175.035000 * DATE/TIME: 1977-02-26T00:00:00 * ELEVATION: -5806.0 m * LOCATION: Pacific Ocean * CAMPAIGN: GH77-1 * BASIS: Hakurei-Maru (1974) * METHOD/DEVICE: Dredge, box 1977-02-26T00:00:00 EVENT LABEL: GH77-1-FG40-1 * LATITUDE: 8.998330 * LONGITUDE: -177.980000 * DATE/TIME: 1977-01-30T00:00:00 * ELEVATION: -5795.0 m * LOCATION: Pacific Ocean * CAMPAIGN: GH77-1 * BASIS: Hakurei-Maru (1974) * METHOD/DEVICE: Free-fall grab 1977-01-30T00:00:00 EVENT LABEL: GH77-1-G384 * LATITUDE: 8.970000 * LONGITUDE: -177.001670 * DATE/TIME: 1977-02-02T00:00:00 * ELEVATION: -5920.0 m * LOCATION: Pacific Ocean * CAMPAIGN: GH77-1 * BASIS: Hakurei-Maru (1974) * METHOD/DEVICE: Ocean 70 grab 1977-02-02T00:00:00 EVENT LABEL: KH73-4-2 * LATITUDE: 12.533354 * LONGITUDE: 149.683344 * DATE/TIME: 1973-08-15T00:00:00 * ELEVATION: -3030.0 m * LOCATION: Pacific Ocean * CAMPAIGN: KH-73-4 * BASIS: Hakuho-Maru * METHOD/DEVICE: Core 1973-08-15T00:00:00 Source <gco:CharacterString>The NOAA and MMS Marine Minerals Geochemical Database</gco:CharacterString> 1992-01-01 publication https://doi.org/10.7289/V52Z13FT Grant, John Bruce author Moore, Carla J
carla.j.moore@noaa.gov
https://orcid.org/0000-0002-2610-8648 information author Alameddin, George author Chen, Kuiying author Barton, Mark author documentDigital National Geophysical Data Center, NOAA Further details <gco:CharacterString>The NOAA and MMS Marine Minerals Bibliography</gco:CharacterString> 1992-01-01 publication https://doi.org/10.7289/V53X84KN Warnken, Robin R
rrw@luna.ngdc.noaa.gov
author Virden, William T author Moore, Carla J
carla.j.moore@noaa.gov
https://orcid.org/0000-0002-2610-8648 information author documentDigital National Geophysical Data Center, NOAA