Hawkins, L K (1969): Observation of manganese nodules and crusts in the Blake Plateau area [dataset]. U.S. Naval Oceanographic Office (NAVOCEANO), PANGAEA, https://doi.org/10.1594/PANGAEA.855399, Supplement to: Hawkins, LK (1969): Visual observations of manganese deposits on the Blake Plateau. Journal of Geophysical Research, 74(28), 7009-7017, https://doi.org/10.1029/JC074i028p07009
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Abstract:
Visual observations of manganese deposits on the Blake plateau from a manned submersible indicate that the occurrence of manganese as nodules, slabs, or pavement may be related to localized environmental conditions. Manganese is concentrated at the crests of sand waves and, in areas of gentle slope, grades locally from nodules to solid pavement.
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: 31.566667 * Median Longitude: -77.693889 * South-bound Latitude: 31.341667 * West-bound Longitude: -78.510000 * North-bound Latitude: 32.003333 * East-bound Longitude: -77.285000
Date/Time Start: 1967-11-09T00:00:00 * Date/Time End: 1967-11-19T00:00:00
Minimum Elevation: -1130.0 m * Maximum Elevation: -457.0 m
Event(s):
DPSTR-03 * Latitude: 32.003333 * Longitude: -78.510000 * Date/Time: 1967-11-09T00:00:00 * Elevation: -457.0 m * Location: Blake Plateau, Atlantic Ocean * Campaign: ST1967 * Basis: Search Tide * Method/Device: Submersible Deepstar-4000 (DS4000) * Comment: US Naval Oceanographic Office (NAVOCEANO)
DPSTR-04 * Latitude: 31.341667 * Longitude: -77.286667 * Date/Time: 1967-11-19T00:00:00 * Elevation: -1130.0 m * Location: Blake Plateau, Atlantic Ocean * Campaign: ST1967 * Basis: Search Tide * Method/Device: Submersible Deepstar-4000 (DS4000) * Comment: US Naval Oceanographic Office (NAVOCEANO)
DPSTR-05 * Latitude: 31.355000 * Longitude: -77.285000 * Date/Time: 1967-11-19T00:00:00 * Elevation: -1100.0 m * Location: Blake Plateau, Atlantic Ocean * Campaign: ST1967 * Basis: Search Tide * Method/Device: Submersible Deepstar-4000 (DS4000) * Comment: US Naval Oceanographic Office (NAVOCEANO)
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):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
16 data points
Data
| 1 Event | 2 ID | 3 Page(s) | 4 Fig | 5 URL image |
|---|---|---|---|---|
| DPSTR-03 | DPSTR-03-1 | 7011 | Fig. 3. Tabular manganese slabs concentrated near the ridge crests are 20 to 30 cm thick and 0.5 to 1 meter in length and width. | hdl:10013/epic.46373.d001 |
| DPSTR-04 | DPSTR-04-1 | 7014 | Fig. 6. A thin crust of carbonate sediment overlies manganese nodules and sand suite. | hdl:10013/epic.46373.d002 |
| DPSTR-05 | DPSTR-05-1 | 7015 | Fig. 8. Manganese nodules interspersed with a globigerina-pteropod sand observed at the start of the dive. | hdl:10013/epic.46373.d003 |
| DPSTR-05 | DPSTR-05-3 | 7015 | Fig. 9. Solid pavement observed on exhibited stages of fracture and deformation. | hdl:10013/epic.46373.d004 |