Evans, Cynthia A (1988): Chemical composition of rhyolites of ODP Site 103-639 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.743481, Supplement to: Evans, CA (1988): Composition of rhyolites from continental 'basement', ODP Site 639. In: Boillot, G; Winterer, EL; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 103, 55-57, https://doi.org/10.2973/odp.proc.sr.103.137.1988
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Published: 1988 (exact date unknown) • DOI registered: 2010-08-26
Abstract:
Holes 639E and 639F were drilled along the western slope of a tilted fault block in an attempt to recover complete syn- and pre-rift stratigraphic sections and continental basement. Both holes ended in an apparent talus pile or conglomerate that includes cobbles of altered rhyolitic rock. Three small pieces of rhyolite (comprising about 20 cm of sample) were recovered from the bottoms of Holes 639E and 639F in the core catchers of the deepest cores. This note presents geochemical data from these rhyolitic rocks. Also recovered were quartz sandstones, graywackes, metasandstones, and quartz breccias. This assemblage of continentally derived 'basement' material was overlain by mudstones, limestones, and crystalline dolomites (see 'Site 639' chapter; Shipboard Scientific Party, 1987, doi:10.2973/odp.proc.ir.103.110.1987).
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 42.143300 * Median Longitude: -12.257260 * South-bound Latitude: 42.143300 * West-bound Longitude: -12.258300 * North-bound Latitude: 42.143300 * East-bound Longitude: -12.256700
Date/Time Start: 1985-06-06T06:45:00 * Date/Time End: 1985-06-08T02:15:00
Event(s):
103-639E * Latitude: 42.143300 * Longitude: -12.256700 * Date/Time Start: 1985-06-06T06:45:00 * Date/Time End: 1985-06-07T13:45:00 * Elevation: -4770.0 m * Penetration: 237.9 m * Recovery: 1.95 m * Location: North Atlantic Ocean * Campaign: Leg103 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 4 cores; 38.5 m cored; 0 m drilled; 5.1 % recovery
103-639F * Latitude: 42.143300 * Longitude: -12.258300 * Date/Time Start: 1985-06-07T13:45:00 * Date/Time End: 1985-06-08T02:15:00 * Elevation: -4771.0 m * Penetration: 250.8 m * Recovery: 0.89 m * Location: North Atlantic Ocean * Campaign: Leg103 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 2 cores; 13 m cored; 0 m drilled; 6.8 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Evans, CA (1988): (Table 1) Whole-rock analyses of ODP Site 103-639 rhyolites. https://doi.org/10.1594/PANGAEA.743479
- Evans, CA (1988): (Table 2) Analyses of minerals and groundmass of ODP Hole 103-639E. https://doi.org/10.1594/PANGAEA.743480