Neoproterozoic backarc basin: Sensitive high-resolution ion microprobe U-Pb and Sm-Nd isotopic evidence from the Eastern Pampean Ranges, Argentina
Date
2007
Authors
Escayola, Monica P.
Pimentel, Marcio
Armstrong, Richard
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Volume Title
Publisher
Geological Society of America Inc
Abstract
The Eastern Pampean Ranges comprise high-grade supracrustal sequences with linear belts of mafic-ultramafic bodies representing ophiolite remnants. New U-Pb and Nd isotopic data suggest that the tectonic evolution of the Pampean Ranges started ca. 640 Ma
Description
Keywords
Keywords: Neoproterozoic subduction; Ophiolite; Provenance; Granite; Metamorphic rocks; Sediments; Volcanic rocks; Tectonics; backarc basin; basin evolution; isotopic composition; ophiolite; provenance; samarium-neodymium dating; SHRIMP dating; subduction; supracru Neoproterozoic subduction; Pampean ranges; Provenance; SHRIMP; Sm-Nd ages
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Source
Geology
Type
Journal article
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Restricted until
2037-12-31