Bougault, Henri; Cande, Steven C (1985): Annotated record of the detailed examination of Mn deposits from DSDP Leg 82 (Holes 556, 558, 559, 562, 563, 564) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.875570
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Abstract:
One of the most important geologic discoveries of the 1960s was the remarkable uniformity of the basalts produced at mid-ocean ridges. These basalts have a markedly different tholeiitic composition compared to the alkalic basalts from ocean islands. But very little is known about temporal variations in the composition of basalts derived from one or several mantle sources associated with both normal and anomalously shallow sections of the mid-ocean ridges. The strategy for drilling on DSDP Leg 82 was to set up a broad grid encompassing all possible drilling sites west and southwest of the present Azores Triple Junction in order to investigate these problems.
Related to:
Weaver, Barry L; Rideout, M L; Neuser, R D; Khan, Mohammad Javed; Hill, Ian Ashley; Echols, D J; Drake, N; Curtis, Doris M; Clark, Murlene W; Christie, David M; Brannon, Joyce C; Mills, William; Bougault, Henri; Cande, Steven C (1985): Initial Reports of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, LXXXII, 667 pp, https://doi.org/10.2973/dsdp.proc.82.1985
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: 35.392817 * Median Longitude: -40.359883 * South-bound Latitude: 33.141500 * West-bound Longitude: -43.767300 * North-bound Latitude: 38.939700 * East-bound Longitude: -34.685300
Date/Time Start: 1981-09-22T00:00:00 * Date/Time End: 1981-10-28T00:00:00
Minimum DEPTH, sediment/rock: 1.40 m * Maximum DEPTH, sediment/rock: 496.05 m
Event(s):
82-556 * Latitude: 38.939700 * Longitude: -34.685300 * Date/Time: 1981-09-22T00:00:00 * Elevation: -3672.0 m * Penetration: 639 m * Recovery: 80.9 m * Location: North Atlantic/RIDGE * Campaign: Leg82 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 20 cores; 166 m cored; 0 m drilled; 48.7 % recovery
82-558 * Latitude: 37.770000 * Longitude: -37.343500 * Date/Time: 1981-10-03T00:00:00 * Elevation: -3754.0 m * Penetration: 561.5 m * Recovery: 237.8 m * Location: North Atlantic/RIDGE * Campaign: Leg82 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 43 cores; 394.5 m cored; 0 m drilled; 60.3 % recovery
82-559 * Latitude: 35.124200 * Longitude: -40.916700 * Date/Time: 1981-10-14T00:00:00 * Elevation: -2754.0 m * Penetration: 301 m * Recovery: 23.5 m * Location: North Atlantic * Campaign: Leg82 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 63 m cored; 0 m drilled; 37.3 % 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 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | Identification | ID | ||||
| 6 | Sample code/label | Sample label | ||||
| 7 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 8 | Position | Position | Visual description | |||
| 9 | Deposit type | Deposit type | ||||
| 10 | Quantity of deposit | Quantity | ||||
| 11 | Size | Size | ||||
| 12 | Substrate type | Substrate | ||||
| 13 | Sediment type | Sediment | ||||
| 14 | Comment | Comment | ||||
| 15 | Description | Description |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
214 data points