Halbach, Peter; Gursky, H J; Gursky, M M; Schmidt-Effing, R; Maresch, W V (1992): Field observation of fossil manganese nodules in the the Jurassic to Cretaceous radiolarites of Costa Rica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.858475, In supplement to: Halbach, P et al. (1992): Composition and formation of fossil manganese nodules in Jurassic to Cretaceous radiolarites from the Nicoya Ophiolite Complex (NW Costa Rica). Mineralium Deposita, 27(2), 153-160, https://doi.org/10.1007/BF00197101
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Project(s):
Coverage:
Median Latitude: 10.460255 * Median Longitude: -85.744295 * South-bound Latitude: 10.397113 * West-bound Longitude: -85.809247 * North-bound Latitude: 10.523398 * East-bound Longitude: -85.679344
Minimum Elevation: 18.0 m * Maximum Elevation: 282.0 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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Halbach, Peter | |||
| 2 | Identification | ID | Halbach, Peter | |||
| 3 | Deposit type | Deposit type | Halbach, Peter | |||
| 4 | Quantity of deposit | Quantity | Halbach, Peter | |||
| 5 | Size | Size | Halbach, Peter | |||
| 6 | Sediment type | Sediment | Halbach, Peter | |||
| 7 | Comment | Comment | Halbach, Peter | |||
| 8 | Description | Description | Halbach, Peter |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
14 data points
Data
| 1 Event | 2 ID | 3 Deposit type | 4 Quantity | 5 Size | 6 Sediment | 7 Comment | 8 Description |
|---|---|---|---|---|---|---|---|
| HALCSR-A | HALCSR-A-1 | Mn nodule | Many | 2.0-5.0 cm | Radiolarian chert | Slightly reddish, dark-grey, siliceous mudstone interlayers of dark-red to nearly black, radiolarian chert beds. | Nodules along the sharp contacts between the chert and the mudstone beds. They are flat, discoidal to elongate and show smooth contours; many of them have a thickened nucleus also composed of Mn ore. 150 nod/m2 |
| HALCSR-B | HALCSR-B-1 | Mn nodule | Several | 3.0 cm | Siliceous mudstone | Siliceous mudstone layers alternating with chert beds, brownish to reddish and free of disseminated Mn ore | The nodules are discoidal to spherical. The contours are smooth; thickening of the nuclei is absent |