Chernysheva, Victoria I (1969): Chemical composition of ultrabasites and gabbro from rift zones of the Indian Ocean [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.754346, Supplement to: Chernysheva, VI (1969): Ultrabasite and gabbro from the rift zones of the Arabian-Indian and Western Indian underwater ridges. Oceanology, 9, 519-528
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Abstract:
Results of petrographic studies of ultrabasites and gabbro from rift zones of the Indian Ocean are discussed using materials of Cruise 36 of R/V Vityaz. Rocks sampled from two sites 2700 km apart are close to each other in their composition. Petrographically ultrabasic rocks are divided into four subgroups: I - dunite; II - harzburgite, serpentinite; III - plagioclase lherzolite; and IV - metamorphically altered rocks. Petrographic description and chemical composition of basic rock varieties are presented as well as description of rock-forming minerals and their optical properties. Formation of pyroxene and plagioclase is shown to be related to autometasomatosis. Formation of ultrabasite in rift zones is related to complicated processes.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: -14.172100 * Median Longitude: 64.007525 * South-bound Latitude: -28.366700 * West-bound Longitude: 62.141700 * North-bound Latitude: 5.413300 * East-bound Longitude: 68.665000
Date/Time Start: 1960-10-15T00:00:00 * Date/Time End: 1964-12-21T00:00:00
Event(s):
VITYAZ4822-DR * Latitude: 5.413300 * Longitude: 62.141700 * Date/Time: 1960-10-15T00:00:00 * Elevation: -1920.0 m * Campaign: Vityaz-33 * Basis: Vityaz (ex-Mars) * Method/Device: Dredge (DRG)
VITYAZ5319-DR * Latitude: -5.368300 * Longitude: 68.665000 * Date/Time: 1964-11-10T00:00:00 * Elevation: -2855.0 m * Campaign: Vityaz-36 * Basis: Vityaz (ex-Mars) * Method/Device: Dredge (DRG)
VITYAZ5324-DR * Latitude: -28.366700 * Longitude: 62.611700 * Date/Time: 1964-12-21T00:00:00 * Elevation: -4613.0 m * Campaign: Vityaz-36 * Basis: Vityaz (ex-Mars) * Method/Device: Dredge (DRG)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Chernysheva, VI (1969): (Table 4a) Chemical composition of ultrabasites and gabbro from Stations VITYAZ5319-DR and VITYAZ4822-DR. https://doi.org/10.1594/PANGAEA.754344
- Chernysheva, VI (1969): (Table 4b) Chemical composition of ultrabasites and gabbro from Station VITYAZ5324-DR. https://doi.org/10.1594/PANGAEA.754345