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Ryabchikov, I D; Babansky, A D; Dmitriev, Yuri I (1982): Geochemistry at DSDP Hole 66-487 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.817773, Supplement to: Ryabchikov, ID et al. (1982): Genesis of calc-alkaline magmas: Experiments with partial melting of mixed mediments and basalts from the Middle America Trench, southern Mexico Transect. In: Watkins, JS; Casey Moore, J; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 66, 699-702, https://doi.org/10.2973/dsdp.proc.66.132.1982

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Published: 1982 (exact date unknown) • DOI registered: 2013-09-09

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Abstract:
It is widely accepted that the calc-alkaline magmatism of active continental margins is caused by the melting of ocean crust in subduction zones, which in turn is due to the interaction of lithospheric plates (Dickinson, 1970; Fitton, 1971; Green, 1972). In particular, the Neogene-Quaternary magmatism of Central America is considered to be the result of the subduction of the Cocos Plate under the continent of North America in the zone of the Middle America Trench (Pichler and Weyl, 1973; Stoiber and Carr, 1974).
Recent investigations (Magaritz et al., 1978; Stern, 1974) show that the direct melting of ocean crust basalts does not result in the formation of calc-alkaline magmas, and the models of the generation of these melts would not be complete without taking into account both the processes of magmatic differentiation and their interaction with the sialic material of ocean and continental crust.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 15.853500 * Longitude: -99.175300
Date/Time Start: 1979-03-24T00:00:00 * Date/Time End: 1979-03-24T00:00:00
Event(s):
66-487 * Latitude: 15.853500 * Longitude: -99.175300 * Date/Time: 1979-03-24T00:00:00 * Elevation: -4764.0 m * Penetration: 190.5 m * Recovery: 119.6 m * Location: North Pacific/TRENCH * Campaign: Leg66 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 20 cores; 180.5 m cored; 9.5 m drilled; 66.3 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets

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Datasets listed in this publication series

  1. Ryabchikov, ID; Babansky, AD; Dmitriev, YI (1982): (Table 4) Chemical composition of basalt from DSDP Hole 66-487. https://doi.org/10.1594/PANGAEA.817771
  2. Ryabchikov, ID; Babansky, AD; Dmitriev, YI (1982): (Table 5) Chemical composition of rocks and mixtures used for experiments at DSDP Hole 66-487. https://doi.org/10.1594/PANGAEA.817772
  3. Ryabchikov, ID; Babansky, AD; Dmitriev, YI (1982): (Table 2) Chemical composition of brown clays from DSDP Hole 66-487. https://doi.org/10.1594/PANGAEA.817770
  4. Ryabchikov, ID; Babansky, AD; Dmitriev, YI (1982): (Table 1) Chemical composition of grayish olive muds from DSDP Hole 66-487. https://doi.org/10.1594/PANGAEA.817769