Geochemical evidence for island-arc origin of the Villa de Cura Blueschist Belt, Venezuela
New geochemical data from the Villa de Cura indicate that it is a subducted (and exhumed) island-arc terrane. The majority of the basalts are primitive island-arc tholeiites (44.8--51.5 wt% SiO2, 6.7--22.8 wt% MgO). REE and immobile trace element data from the Villa de Cura exhibit island-arc signat...
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Format: | Others |
Language: | English |
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2009
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Online Access: | http://hdl.handle.net/1911/17382 |