Halbach, Peter; Scherhag, C; Hebisch, U; Marchig, Vesna (2023): Chemical composition of manganese nodules from the Northeast Pacific belt [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.961630
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Published: 2023-08-18 • DOI registered: 2023-08-18
Abstract:
The nodules examined were sampled during the R/V Valdivia cruises VA 04, 05, 09, 13/1, and 18. The majority of these samples was taken from a region extending from 135°w to 155°W and from 5° N to 15°N. In the pelagic area investigated a very fine-grained siliceous ooze to siliceous clay is dominant. Three genetic types have been determined: type A (diagenetic) mainly on slopes or in the vicinity of seamounts; type B (Hydrogenetic) in the center of the basin regions and type C (dia-hydrogenetic) characterized by a vertical dual structure with a smooth top and and a rough gritty bottom separated by a distintive knotted botryoidal equatorial band. Chemical analyses have been performed on dried samples.
Related to:
Halbach, Peter; Scherhag, C; Hebisch, U; Marchig, Vesna (1981): Geochemical and mineralogical control of different genetic types of deep-sea nodules from the Pacific Ocean. Mineralium Deposita, 16(1), 59–84, https://doi.org/10.1007/BF00206455
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: 8.453300 * Median Longitude: -149.451667 * South-bound Latitude: 7.083333 * West-bound Longitude: -154.133333 * North-bound Latitude: 11.116667 * East-bound Longitude: -143.716667
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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 Table 1, pp. 63, of the related publication.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Halbach, Peter | |||
| 2 | Latitude of event | Latitude | Halbach, Peter | |||
| 3 | Longitude of event | Longitude | Halbach, Peter | |||
| 4 | Elevation of event | Elevation | m | Halbach, Peter | ||
| 5 | Identification | ID | Halbach, Peter | |||
| 6 | Deposit type | Deposit type | Halbach, Peter | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | Halbach, Peter | Geocode | |
| 8 | Manganese | Mn | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 9 | Iron | Fe | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 10 | Nickel | Ni | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 11 | Copper | Cu | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 12 | Zinc | Zn | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 13 | Cobalt | Co | % | Halbach, Peter | Atomic absorption spectrophotometry | |
| 14 | Silicon dioxide | SiO2 | % | Halbach, Peter | Wet chemistry | |
| 15 | Aluminium oxide | Al2O3 | % | Halbach, Peter | Wet chemistry | |
| 16 | Titanium dioxide | TiO2 | % | Halbach, Peter | Wet chemistry | |
| 17 | Calcium oxide | CaO | % | Halbach, Peter | Wet chemistry | |
| 18 | Magnesium oxide | MgO | % | Halbach, Peter | Wet chemistry | |
| 19 | Sodium oxide | Na2O | % | Halbach, Peter | Wet chemistry | |
| 20 | Potassium oxide | K2O | % | Halbach, Peter | Wet chemistry | |
| 21 | Genesis | Genesis | Halbach, Peter | Genetic type (see text) | ||
| 22 | Sediment type | Sediment | Halbach, Peter | Type of sediment associated with Mn nodules | ||
| 23 | Shape | Shape | Halbach, Peter | Mn nodule shape | ||
| 24 | Texture | Texture | Halbach, Peter | Texture of Mn nodule surface | ||
| 25 | Size | Size | Halbach, Peter | Size interval of Mn nodule class |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
177 data points