Byerly, Gary R; Melson, William G; Vogt, Peter R (1976): Annotated record of the detailed examination of ferromanganese crusts from the Galapagos Ridge area [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.882413, Supplement to: Byerly, GR et al. (1976): Rhyodacites, andesites, ferro-basalts and ocean tholeiites from the galapagos spreading center. Earth and Planetary Science Letters, 30(2), 215-221, https://doi.org/10.1016/0012-821X(76)90248-X
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Published: 1976 (exact date unknown) • DOI registered: 2017-11-30
Abstract:
Volcanic rocks, dredged from depths greater than 1000 m on the Galapagos spreading center, show extreme chemical diversity, including rhyodacites, andesite, ferro-basalts, and low-K oceanic tholeiite. All samples have fresh glassy margins. The ferro-basalts contain up to 18.5% total iron as FeO and up to 3.75% TiO2, while the oceanic tholeiites are as low as 0.02% K2O. The ferro-basalts correlate with the previously proposed zone of high magnetic anomaly amplitudes which flank the Galapagos hot spot, and are consistent with a genesis by shallow fractional crystallization.
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: 1.563500 * Median Longitude: -90.453500 * South-bound Latitude: 0.705000 * West-bound Longitude: -95.407000 * North-bound Latitude: 2.422000 * East-bound Longitude: -85.500000
Date/Time Start: 1974-01-01T00:00:00 * Date/Time End: 1974-01-01T00:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
DSTGR74-D1 * Latitude: 0.705000 * Longitude: -85.500000 * Date/Time: 1974-01-01T00:00:00 * Elevation: -2523.0 m * Location: Pacific Ocean * Campaign: Cruise_41 * Basis: USNS De Steiguer (T-AGOR-12) * Method/Device: Dredge (DRG) * Comment: U.S. Naval Oceanographic Office
DSTGR74-D7 * Latitude: 2.422000 * Longitude: -95.407000 * Date/Time: 1974-01-01T00:00:00 * Elevation: -2267.0 m * Location: Pacific Ocean * Campaign: Cruise_41 * Basis: USNS De Steiguer (T-AGOR-12) * Method/Device: Dredge (DRG) * Comment: U.S. Naval Oceanographic Office
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 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 4 | Position | Position | Visual description | |||
| 5 | Deposit type | Deposit type | ||||
| 6 | Quantity of deposit | Quantity | ||||
| 7 | Size | Size | ||||
| 8 | Substrate type | Substrate | ||||
| 9 | Sediment type | Sediment | ||||
| 10 | Description | Description |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
16 data points
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Datasets with similar metadata
- Moore, WS; Vogt, PR (1976): Annotated record of the detailed examination of ferromanganese crusts from the Galapagos Ridge area. https://doi.org/10.1594/PANGAEA.882354
- Moore, WS; Vogt, PR (2017): (Tables 1, page 354) Chemical composition of ferromanganese crusts from the Galapagos Ridge area. https://doi.org/10.1594/PANGAEA.882355
- Malfait, BT (1974): Annotated record of the detailed examination of a Mn deposits from the Carnegie Ridge in the Pacific Ocean. https://doi.org/10.1594/PANGAEA.876539