Lithospheric mantle duplex beneath the central Mojave Desert revealed by xenoliths from Dish Hill, California
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چکیده
منابع مشابه
Lithospheric mantle duplex beneath the central Mojave Desert revealed by xenoliths from Dish Hill, California
[1] Low-angle subduction of oceanic lithosphere may be an important process in modifying continental lithosphere. A classic example is the underthrusting of the Farallon plate beneath North America during the Laramide orogeny. To assess the relevance of this process to the evolution and composition of continental lithosphere, the mantle stratigraphy beneath the Mojave Desert was constrained usi...
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_______________________________________ 237 Introduction _______________________________________ 237 Methods and procedures-------.------.---------238 Acknowledgements. __--___-_-___-_____--________ 239 Geology-__________________________________ 239 Characteristics of the nodules_______________________ 240 Preservation of the fossils-_-__-_-____________________ 241 Age of the fauna_--__-__-__--...
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24 25 Cenozoic alkaline lavas from the Al Ashkharah area, facing the Indian ocean along 26 the North-East Oman coastline, contain numerous small (‹ 2cm) mantle xenoliths. 27 They provide a unique opportunity to investigate the nature and evolution of the 28 upper mantle beneath the Oman passive margin, bordering the Owen Basin. All 29 studied xenoliths are porphyroclastic to equigranular spinel...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 2009
ISSN: 0148-0227
DOI: 10.1029/2008jb005906