Structure and serpentinization of the subducting Cocos plate offshore Nicaragua and Costa Rica
نویسندگان
چکیده
منابع مشابه
An 8--10 Ma tectonic event on the Cocos Plate offshore Costa Rica: Result of Cocos Ridge collision?
[1] Upper oceanic crust within the Cocos Plate offshore northwestern Costa Rica is dominated by sill intrusions of various ages, recognized regionally as smooth, high amplitude seismic reflections at the base of the sedimentary sequence and locally by dolerites and microgabbros recovered by drilling. Earlier interpretation of seafloor magnetic anomalies documented a set of spreading ridge jumps...
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[1] We present the first regional surface velocity field for Central America, showing crustal response to interaction of the Cocos and Caribbean plates. Elastic half-space models for interseismic strain accumulation on the dipping subduction plate boundary fit the GPS data well and show strain accumulation offshore and beneath the Nicoya and Osa peninsulas in Costa Rica but not in Nicaragua. Si...
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Cocos Island, Costa Rica is a 24-square kilometer volcanic island in the tropical eastern Pacific Ocean, located approximately 480 kilometers from the mainland. Despite its biogeographic significance, much of the entomofauna have not been systematically surveyed. A detailed survey of the ant (Hymenoptera: Formicidae) fauna of this island was conducted over a three-week period. The results sugge...
متن کاملGeometry and seismic properties of the subducting Cocos plate in central Mexico
[1] The geometry and properties of the interface of the Cocos plate beneath central Mexico are determined from the receiver functions (RFs) utilizing data from the Meso America Subduction Experiment (MASE). The RF image shows that the subducting oceanic crust is shallowly dipping to the north at 15° for 80 km from Acapulco and then horizontally underplates the continental crust for approximatel...
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ژورنال
عنوان ژورنال: Geochemistry, Geophysics, Geosystems
سال: 2011
ISSN: 1525-2027
DOI: 10.1029/2011gc003592