van Andel, T H; Bowen, V T; Sachs, P L; Siever, R (1965): Observation of manganese crusts recovered during the CHAIN 44 cruise in October 1964 in the Atlantic Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.859156, Supplement to: van Andel, TH et al. (1965): Morphology and Sediments of a Portion of the Mid-Atlantic Ridge. Science, 148(3674), 1214-1216, https://doi.org/10.1126/science.148.3674.1214
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Published: 1965 (exact date unknown) • DOI registered: 2016-04-25
Abstract:
In October 1964, a detailed geophysical and sampling survey was made of the central part of the Mid-Atlantic Ridge between 22° and 23° north latitude. The results indicate a large difference in age between the relief of the crest and that of the flanks of the Ridge and suggest that the crest portion is very young. Detailed surveys of two sediment-filled valleys on the upper western flank of the Ridge reveal different sedimentary sequences in the two valleys and indicate the probable existence of a locally controlled depositional regime and a significant local supply of sediment.
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: 22.656400 * Median Longitude: -45.526400 * South-bound Latitude: 22.403000 * West-bound Longitude: -46.380000 * North-bound Latitude: 22.833000 * East-bound Longitude: -44.967000
Date/Time Start: 1964-10-02T00:00:00 * Date/Time End: 1964-10-18T00:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
CH44-2D * Latitude: 22.633000 * Longitude: -44.967000 * Date/Time: 1964-10-14T00:00:00 * Elevation: -2440.0 m * Location: Atlantic Ocean * Campaign: CH44 (CH04401) * Basis: Chain * Method/Device: Dredge (DRG)
CH44-3D * Latitude: 22.633000 * Longitude: -45.012000 * Date/Time: 1964-10-14T00:00:00 * Elevation: -3400.0 m * Location: Atlantic Ocean * Campaign: CH44 (CH04401) * Basis: Chain * Method/Device: Dredge (DRG)
CH44-6D * Latitude: 22.780000 * Longitude: -46.180000 * Date/Time: 1964-10-17T00:00:00 * Elevation: -4400.0 m * Location: Atlantic Ocean * Campaign: CH44 (CH04401) * Basis: Chain * 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 | van Andel, T H | |||
| 2 | Latitude of event | Latitude | van Andel, T H | |||
| 3 | Longitude of event | Longitude | van Andel, T H | |||
| 4 | Elevation of event | Elevation | m | van Andel, T H | ||
| 5 | Identification | ID | van Andel, T H | |||
| 6 | DEPTH, sediment/rock | Depth sed | m | van Andel, T H | Geocode | |
| 7 | Position | Position | van Andel, T H | Visual description | ||
| 8 | Deposit type | Deposit type | van Andel, T H | |||
| 9 | Quantity of deposit | Quantity | van Andel, T H | |||
| 10 | Size | Size | van Andel, T H | |||
| 11 | Substrate type | Substrate | van Andel, T H | |||
| 12 | Sediment type | Sediment | van Andel, T H | |||
| 13 | Description | Description | van Andel, T H |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
39 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 ID | 6 Depth sed [m] | 7 Position | 8 Deposit type | 9 Quantity | 10 Size | 11 Substrate | 12 Sediment | 13 Description |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CH44-2D | 22.6330 | -44.9670 | -2440 | CH44-2D-1 | 0 | Surface | Mn crust | Several | Thin | Fragment; basalt, greenstone | Hardground | Basalt, metabasalt and greenstone fragments partially or entirely covered with Mn. |
| CH44-3D | 22.6330 | -45.0120 | -3400 | CH44-3D-1 | 0 | Surface | Mn crust | Several | 1.0 cm thick | Rock; basalt, dolerite | Foraminifera ooze | Basalt fragments with 1 cm palagonite weathering and abundant Mn crusting. Porphyritic dolerite with little or no Mn crust. |
| CH44-6D | 22.7800 | -46.1800 | -4400 | CH44-6D-1 | 0 | Surface | Mn crust | Several | 3.0 cm thick | Fragment; palagonite, basalt | Hardground | Abundant palagonite in large, earthy lumps; friable manganiferous crusts several centimeters thick cover the basalt fragments. |
| CH44-8D | 22.8330 | -45.0930 | -3400 | CH44-8D-1 | 0 | Surface | Mn crust | Several | Rock; basalt | Hardground | All basalt specimen coated with Mn. | |
| CH44-10D | 22.4030 | -46.3800 | -3400 | CH44-10D-1 | 0 | Surface | Mn crust | Several | Thick | Rock; basalt altered | Hardground | Basalt wit thick Mn crust and strong deuteric alteration |