de Lange, Gert J; van Os, B; Poorter, R (1992): Description of manganese nodules collected by R/V "Tyro" during its 1986 cruise over the Madeira Abyssal Plain [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.854705, In supplement to: de Lange, GJ et al. (1992): Geochemical composition and inferred accretion rates of sediments and managanese nodules from a submarine hill in the Madeira Abyssal Plain, eastern North Atlantic. Marine Geology, 109(1-2), 171-194, https://doi.org/10.1016/0025-3227(92)90227-9
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Project(s):
Coverage:
Median Latitude: 31.412310 * Median Longitude: -25.296600 * South-bound Latitude: 31.411660 * West-bound Longitude: -25.299870 * North-bound Latitude: 31.412960 * East-bound Longitude: -25.293330
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 0.21 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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample ID | Sample ID | de Lange, Gert J | |||
| 2 | Latitude of event | Latitude | de Lange, Gert J | |||
| 3 | Longitude of event | Longitude | de Lange, Gert J | |||
| 4 | Elevation of event | Elevation | m | de Lange, Gert J | ||
| 5 | Method/Device of event | Method/Device | de Lange, Gert J | |||
| 6 | Event label | Event | de Lange, Gert J | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | de Lange, Gert J | Geocode | |
| 8 | Depth, top/min | Depth top | m | de Lange, Gert J | ||
| 9 | Depth, bottom/max | Depth bot | m | de Lange, Gert J | ||
| 10 | Position | Position | de Lange, Gert J | |||
| 11 | Deposit type | Deposit type | de Lange, Gert J | |||
| 12 | Quantity of deposit | Quantity | de Lange, Gert J | |||
| 13 | Size | Size | de Lange, Gert J | |||
| 14 | Sediment type | Sediment | de Lange, Gert J | |||
| 15 | Description | Description | de Lange, Gert J |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
34 data points
Data
| 1 Sample ID | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 Method/Device | 6 Event | 7 Depth sed [m] | 8 Depth top [m] | 9 Depth bot [m] | 10 Position | 11 Deposit type | 12 Quantity | 13 Size | 14 Sediment | 15 Description |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T86-12B-1 | 31.4117 | -25.2933 | -5258 | Box corer | T86-B12 | 0.00 | 0.0 | 0.00 | Surface | Mn nodule | Several | 3.0-4.0 cm | Red clay | Several manganese nodules with an average diameter of 3-4 cm were observed on the sediment surface. |
| T86-12B-2 | 31.4117 | -25.2933 | -5258 | Box corer | T86-B12 | 0.20 | 0.2 | 0.20 | Buried | Mn nodule | 2 | Red clay | Two manganese nodules were found at a depth of 20 cm in the sediment. | |
| T86-26B-1 | 31.4130 | -25.2999 | -5317 | Box corer | T86-B26 | 0.00 | 0.0 | 0.00 | Surface | Mn nodule | 1 | Red clay | Only one nodule was observed at surface. | |
| T86-26B-2 | 31.4130 | -25.2999 | -5317 | Box corer | T86-B26 | 0.21 | 0.2 | 0.22 | Surface | Mn nodule | Several | Fragment | Red clay | This material seemed to consist of eroded pumice, and of some small concretions of probably heavily eroded manganese nodules. |