Mascle, Jean; Auroux, Christian (1989): Description of manganese deposits collected by R/V "Jean Charcot" during its EQUAMARGE II expedition in the Equatorial Atlantic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.858531
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Abstract:
During the Equamarge II cruise (February 4 to March 21, 1988), on board the R. V. "Jean Charcot", 12.500 kms of continuous geophysical profiling have been recorded along three sectors of the Equatorial Atlantic. Two segments ofthe West African transform margin have been intensively surveyed off Guinea and off Ivory Coast and Ghana. The active Romanche fracture zone has been surveyed in details on a distance of about 100 kms. These data (multibeam bathymetry, continuous seismic profiling, magnetism and gravity) have been supplemented by 16 geological stations (dredging and coring). This report gives a synthetic review of the onboard analysis and allows to better understand the geological structures of the three surveyed areas.
Related to:
Mascle, Jean; Auroux, Christian (1989): Les marges continentales transformantes ouest - africaines : Guinée, Côte d'Ivoire, Ghana et la zone de la fracture de la Romanche. Campagne Equamarge II : rapport scientifique. Ifremer (pdf 40 MB), 139 pp, https://archimer.ifremer.fr/doc/00000/4461/
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: 5.709369 * Median Longitude: -15.259529 * South-bound Latitude: 0.050000 * West-bound Longitude: -17.666667 * North-bound Latitude: 9.350283 * East-bound Longitude: -2.666667
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 6.10 m
Event(s):
EQUM-DR3 * Latitude: 8.658483 * Longitude: -16.907017 * Elevation: -2900.0 m * Location: Atlantic Ocean * Campaign: Equamarge_II * Basis: Jean Charcot * Method/Device: Dredge (DRG)
EQUM-DR4 * Latitude: 8.693367 * Longitude: -16.919433 * Elevation: -2120.0 m * Location: Atlantic Ocean * Campaign: Equamarge_II * Basis: Jean Charcot * Method/Device: Dredge (DRG)
EQUM-DR8 * Latitude: 3.500000 * Longitude: -2.666667 * Elevation: -2420.0 m * Location: Atlantic Ocean * Campaign: Equamarge_II * Basis: Jean Charcot * 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 | Event label | Event | Mascle, Jean | |||
| 2 | Latitude of event | Latitude | Mascle, Jean | |||
| 3 | Longitude of event | Longitude | Mascle, Jean | |||
| 4 | Elevation of event | Elevation | m | Mascle, Jean | ||
| 5 | Identification | ID | Mascle, Jean | |||
| 6 | DEPTH, sediment/rock | Depth sed | m | Mascle, Jean | Geocode | |
| 7 | Depth, top/min | Depth top | m | Mascle, Jean | ||
| 8 | Depth, bottom/max | Depth bot | m | Mascle, Jean | ||
| 9 | Position | Position | Mascle, Jean | Visual description | ||
| 10 | Deposit type | Deposit type | Mascle, Jean | |||
| 11 | Quantity of deposit | Quantity | Mascle, Jean | |||
| 12 | Size | Size | Mascle, Jean | |||
| 13 | Substrate type | Substrate | Mascle, Jean | |||
| 14 | Sediment type | Sediment | Mascle, Jean | |||
| 15 | Comment | Comment | Mascle, Jean | |||
| 16 | Description | Description | Mascle, Jean |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
84 data points