Cronan, David S; Glasby, Geoffrey P; Moorby, S A; Thomson, J; Knedler, K E; McDougall, J C (1982): (Table 1, page 457), Bulk chemical composition of Mn-oxide crusts from the south-west Pacific island arc [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.847589, In supplement to: Cronan, DS et al. (1982): A submarine hydrothermal manganese deposit from the south-west Pacific island arc. Nature, 298(5873), 456-458, https://doi.org/10.1038/298456a0
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Project(s):
Coverage:
Latitude: -26.935000 * Longitude: -177.620000
Date/Time Start: 1981-04-01T00:00:00 * Date/Time End: 1981-04-01T00:00:00
Minimum DISTANCE: 0.00 cm * Maximum DISTANCE: 2.70 cm
Event(s):
TANG1122-U23 * Latitude: -26.935000 * Longitude: -177.620000 * Date/Time: 1981-04-01T00:00:00 * Elevation: -1683.0 m * Location: Tonga-Kermadec ridge * Campaign: NZOI-1122 * Basis: Tangaroa (1960) * Method/Device: Dredge (DRG)
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Cronan, David S | |||
| 2 | DISTANCE | Distance | cm | Cronan, David S | Geocode | |
| 3 | Sample comment | Sample comment | Cronan, David S | |||
| 4 | Manganese | Mn | % | Cronan, David S | Atomic absorption spectrometry (AAS) | |
| 5 | Iron | Fe | % | Cronan, David S | Atomic absorption spectrometry (AAS) | |
| 6 | Calcium | Ca | % | Cronan, David S | Atomic absorption spectrometry (AAS) | |
| 7 | Aluminium | Al | % | Cronan, David S | Atomic absorption spectrometry (AAS) | |
| 8 | Cobalt | Co | mg/kg | Cronan, David S | Atomic absorption spectrometry (AAS) | |
| 9 | Nickel | Ni | mg/kg | Cronan, David S | Atomic absorption spectrometry (AAS) | |
| 10 | Copper | Cu | mg/kg | Cronan, David S | Atomic absorption spectrometry (AAS) | |
| 11 | Zinc | Zn | mg/kg | Cronan, David S | Atomic absorption spectrometry (AAS) | |
| 12 | Minerals | Minerals | Cronan, David S | X-ray diffraction (XRD) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
97 data points
Data
| 1 Sample label | 2 Distance [cm] | 3 Sample comment | 4 Mn [%] | 5 Fe [%] | 6 Ca [%] | 7 Al [%] | 8 Co [mg/kg] | 9 Ni [mg/kg] | 10 Cu [mg/kg] | 11 Zn [mg/kg] | 12 Minerals |
|---|---|---|---|---|---|---|---|---|---|---|---|
| U23/1 | 0.00 | Surface granular layer | 52 | 0.24 | 2.1 | 0.25 | <3 | 320 | 100 | 490 | Birnessite + Todorokite |
| U23/1 | 0.20 | 0-4 mm from base of granular layer | 49 | 0.05 | 2.2 | 0.03 | 8 | 93 | 24 | 110 | Birnessite |
| U23/1 | 0.70 | 4-10 mm | 50 | 0.06 | 1.6 | 0.07 | <3 | 150 | 26 | 170 | Birnessite |
| U23/1 | 1.25 | 10-15 mm | 49 | 0.01 | 1.9 | 0.02 | <3 | 15 | 34 | 29 | Birnessite |
| U23/1 | 1.75 | 15-20 mm | 49 | 0.02 | 1.8 | 0.03 | <3 | 40 | 34 | 50 | Birnessite |
| U23/1 | 2.35 | 20-27 mm | 52 | 0.08 | 1.8 | 0.08 | <3 | 105 | 29 | 150 | Birnessite |
| U23/1 | >2.70 | 27-beyond until base layer | 46 | 0.32 | 1.9 | 0.28 | 12 | 480 | 170 | 710 | Birnessite |
| U23/2 | Granular crust | 38 | 4.50 | 2.1 | 1.10 | 55 | 730 | 200 | 760 | Birnessite + Todorokite | |
| U23/2 | Sediment substrate | 0 | 3.70 | 2.6 | 15.60 | 20 | 28 | 90 |