Buffler, Richard T; Schlager, Wolfgang (1984): Annotated record of the detailed examination of Mn deposits from DSDP Leg 77 (Holes 535, 536, 537, 538A) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.875040
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Abstract:
The drilling of Leg 77 is part of an overall program by the JOIDES Passive Margin Panel to study the evolution of the western North Atlantic passive margin. The history of the central North Atlantic is probably the best known of all ocean basins, but the origin and history of the neighboring Gulf of Mexico are very much uncertain. Some geologists consider it the oldest ocean basin still in existence (Paleozoic), but others doubt the existence of "true" oceanic crust under the central Gulf. The nature and origin of the transitional crust and the overlying Mesozoic sedimentary sequences in the southeastern Gulf, therefore, was the main objective of Leg 77.
Related to:
Watkins, David K; Tyson, Richard V; Testarmata, Margaret M; Avello Suarez, Otmara; Premoli Silva, Isabella; Patton, J W; McNulty, C L; Magoon, Leslie B; Kinoshita, Hajimu; Halley, Roberet B; Cotillon, Pierre; Bowdler, Jay L; Pisciotto, Kenneth A; Buffler, Richard T; Schlager, Wolfgang (1984): Initial Reports of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, LXXVII, 747 pp, https://doi.org/10.2973/dsdp.proc.77.1984
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):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 23.745125 * Median Longitude: -85.087925 * South-bound Latitude: 23.489800 * West-bound Longitude: -85.460300 * North-bound Latitude: 23.933500 * East-bound Longitude: -84.516200
Date/Time Start: 1980-12-29T00:00:00 * Date/Time End: 1981-01-14T00:00:00
Minimum DEPTH, sediment/rock: 0.15 m * Maximum DEPTH, sediment/rock: 650.18 m
Event(s):
77-535 * Latitude: 23.708000 * Longitude: -84.516200 * Date/Time: 1980-12-29T00:00:00 * Elevation: -3450.0 m * Penetration: 714 m * Recovery: 504.6 m * Location: Gulf of Mexico/BASIN * Campaign: Leg77 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 78 cores; 704.5 m cored; 9.5 m drilled; 71.6 % recovery
77-536 * Latitude: 23.489800 * Longitude: -85.209700 * Date/Time: 1981-01-09T00:00:00 * Elevation: -2790.0 m * Penetration: 213 m * Recovery: 65.3 m * Location: Gulf of Mexico/SLOPE * Campaign: Leg77 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 23 cores; 213 m cored; 0 m drilled; 30.7 % recovery
77-537 * Latitude: 23.933500 * Longitude: -85.460300 * Date/Time: 1981-01-11T00:00:00 * Elevation: -3123.0 m * Penetration: 225 m * Recovery: 15.9 m * Location: Gulf of Mexico/KNOLL * Campaign: Leg77 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 16 cores; 144.5 m cored; 9 m drilled; 11 % recovery
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 | ||||
| 2 | Identification | ID | ||||
| 3 | Sample code/label | Sample label | ||||
| 4 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 5 | Position | Position | Visual description | |||
| 6 | Deposit type | Deposit type | ||||
| 7 | Quantity of deposit | Quantity | ||||
| 8 | Size | Size | ||||
| 9 | Substrate type | Substrate | ||||
| 10 | Sediment type | Sediment | ||||
| 11 | Comment | Comment | ||||
| 12 | Description | Description | ||||
| 13 | File name | File name | ||||
| 14 | Uniform resource locator/link to image | URL image |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
130 data points