Usui, Akira; Terashima, Shigeru (2023): Bulk chemical composition of pelagic sediment samples from the Central Pacific Basin, GH 79-1 detailed survey area [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.962209
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Published: 2023-09-21 • DOI registered: 2023-09-21
Abstract:
During the ten R/V Hakurei-Maru cruises from 1984 through 1988 in the Northwestern Pacific island-arc area, a widespread occurrence of hydrogenetic iron-manganese crusts and nodules and hydrothermal manganese deposits were discovered. During shipboard survey, the wet iron-manganese minerals were stored with sea water in a refrigerator immediately after recovery from a sampler, in order to prevent mineralogical transformation on air drying. The subsamples, in both wet and air-dried conditions, were subjected to X-ray powder diffraction (XRD) analysis to ascertain structural stability upon dehydration. Powder samples dried at 110°C for 3 hours were analyzed for metal concentration by atomic absorption spectroscopy according to the Geological Survey of Japan (GSJ) standard analytical technique.
Related to:
Manheim, Frank T; Lane-Bostwick, C M (1989): Chemical composition of ferromanganese crusts in the world ocean: A review and comprehensive database. U.S. Geological Survey, 89–020, https://doi.org/10.3133/ofr8920V.1.1
Usui, Akira; Terashima, Shigeru (1997): Deposition of hydrogenetic and hydrothermal manganese minerals in the Ogasawara (Bonin) Arc Area, Northwest Pacific. Marine Georesources & Geotechnology, 15(2), 127-154, https://doi.org/10.1080/10641199709379941
Source:
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
Further details:
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
Project(s):
Coverage:
Median Latitude: 24.551886 * Median Longitude: 140.830841 * South-bound Latitude: 19.617000 * West-bound Longitude: 135.886000 * North-bound Latitude: 27.100000 * East-bound Longitude: 147.992000
Minimum Elevation: -4030.0 m * Maximum Elevation: -790.0 m
Event(s):
USU-D825 * Latitude: 26.665000 * Longitude: 141.063000 * Elevation: -930.0 m * Location: Pacific Ocean * Method/Device: Dredge (DRG) * Comment: Collected during Hakurei Maru cruises to Bonin Arc areas of the West Pacific between 1984 and 1988
Comment:
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 Tables 2 and 3, pp. 142-144, of Manheim, FT & Lane-Bostwick, CM (1989).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Usui, Akira | |||
| 2 | Latitude of event | Latitude | Usui, Akira | |||
| 3 | Longitude of event | Longitude | Usui, Akira | |||
| 4 | Elevation of event | Elevation | m | Usui, Akira | ||
| 5 | Identification | ID | Usui, Akira | |||
| 6 | Deposit type | Deposit type | Usui, Akira | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | Usui, Akira | Geocode | |
| 8 | DISTANCE | Distance | cm | Usui, Akira | Geocode | |
| 9 | DISTANCE | Distance | cm | Usui, Akira | Geocode – min | |
| 10 | DISTANCE | Distance | cm | Usui, Akira | Geocode – max | |
| 11 | Manganese | Mn | % | Usui, Akira | Atomic absorption spectroscopy | |
| 12 | Iron | Fe | % | Usui, Akira | Atomic absorption spectroscopy | |
| 13 | Copper | Cu | % | Usui, Akira | Atomic absorption spectroscopy | |
| 14 | Nickel | Ni | % | Usui, Akira | Atomic absorption spectroscopy | |
| 15 | Cobalt | Co | % | Usui, Akira | Atomic absorption spectroscopy | |
| 16 | Zinc | Zn | % | Usui, Akira | Atomic absorption spectroscopy | |
| 17 | Lead | Pb | % | Usui, Akira | Atomic absorption spectroscopy | |
| 18 | Silicon | Si | % | Usui, Akira | Atomic absorption spectroscopy | |
| 19 | Aluminium | Al | % | Usui, Akira | Atomic absorption spectroscopy | |
| 20 | Platinum | Pt | mg/kg | Usui, Akira | Atomic absorption spectroscopy | ppm |
| 21 | Water in rock | H2O | % | Usui, Akira | Wet chemistry | H2O-; Hydratation water lost after drying at 110°C |
| 22 | Description | Description | Usui, Akira | Detailed description of Mn deposit |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1760 data points