Krämer, Tom; Schornick, James C (2023): Chemical composition of the internal layers of manganese deposits from the South Pacific Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.954698
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Abstract:
The chemical composition of layered deposit inside zones has been determined for ferromanganese nodules and crusts retrieved in the South Pacific Ocean during various R/V Eltanin cruises. Samples were prepared from the nodules and crusts by peeling or scraping successive layers and measuring the resultant decrease in thickness with calipers. The samples were then ground to a fine powder and split into two aliquots, one for U and Th isotopic analysis, the other for elemental analysis. Mercury was determined by flameless atomic absorption spectrophotometry. The remaining elements were determined by standard atomic absorption spectrophotometry. The errors for all elemental determinations are estimated to be 10% or better.
Related to:
Krämer, Tom; Schornick, James C (1974): Comparison of elemental accumulation rates between ferromanganese deposits and sediments in the South Pacific Ocean. Chemical Geology, 13(3), 187-196, https://doi.org/10.1016/0009-2541(74)90019-9
Krämer, Tom; Schornick, James C (2023): Thorium isotopes measurements inside internal layers of manganese deposits from the South Pacific Ocean. PANGAEA, https://doi.org/10.1594/PANGAEA.954696
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: -46.470832 * Median Longitude: -98.075000 * South-bound Latitude: -59.033330 * West-bound Longitude: -134.300000 * North-bound Latitude: -33.050000 * East-bound Longitude: -67.300000
Date/Time Start: 1962-10-01T00:00:00 * Date/Time End: 1966-01-01T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 0.03 m
Event(s):
ELT05.004SS-RD * Latitude: -59.033330 * Longitude: -67.300000 * Date/Time: 1962-10-01T00:00:00 * Elevation: -3475.0 m * Location: South Pacific Ocean * Campaign: ELT05 * Basis: Eltanin * Method/Device: Dredge, rock (DRG_R) * Comment: Institute: ARFFSU
ELT15.013-PC * Latitude: -57.833000 * Longitude: -108.650000 * Date/Time: 1964-01-01T00:00:00 * Elevation: -4589.0 m * Recovery: 4 m * Location: Southern Ocean * Campaign: ELT15 * Basis: Eltanin * Method/Device: Piston corer (PC)
ELT21.004-BT * Latitude: -33.050000 * Longitude: -82.050000 * Date/Time: 1965-01-01T00:00:00 * Elevation: -3877.0 m * Location: Southern Ocean * Campaign: ELT21 * Basis: Eltanin * Method/Device: Trawl net (TRAWL)
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 T2, p. 190 of the related publication.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Krämer, Tom | |||
| 2 | Latitude of event | Latitude | Krämer, Tom | |||
| 3 | Longitude of event | Longitude | Krämer, Tom | |||
| 4 | Elevation of event | Elevation | m | Krämer, Tom | ||
| 5 | Identification | ID | Krämer, Tom | |||
| 6 | Deposit type | Deposit type | Krämer, Tom | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | Krämer, Tom | Geocode | |
| 8 | Distance | Dist | mm | Krämer, Tom | from outer layer/surface | |
| 9 | Distance, minimum | Dist min | mm | Krämer, Tom | from outer layer/surface | |
| 10 | Distance, maximum | Dist max | mm | Krämer, Tom | from outer layer/surface | |
| 11 | Iron | Fe | % | Krämer, Tom | Atomic absorption spectrophotometry | |
| 12 | Manganese | Mn | % | Krämer, Tom | Atomic absorption spectrophotometry | |
| 13 | Copper | Cu | mg/kg | Krämer, Tom | Atomic absorption spectrophotometry | |
| 14 | Nickel | Ni | mg/kg | Krämer, Tom | Atomic absorption spectrophotometry | |
| 15 | Cobalt | Co | mg/kg | Krämer, Tom | Atomic absorption spectrophotometry | |
| 16 | Lead | Pb | mg/kg | Krämer, Tom | Atomic absorption spectrophotometry | |
| 17 | Zinc | Zn | mg/kg | Krämer, Tom | Atomic absorption spectrophotometry | |
| 18 | Uranium | U | mg/kg | Krämer, Tom | Atomic absorption spectrophotometry | |
| 19 | Thorium | Th | mg/kg | Krämer, Tom | Atomic absorption spectrophotometry | |
| 20 | Mercury | Hg | mg/kg | Krämer, Tom | Flameless atomic absorption spectrophotometry |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
357 data points