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

Journal Title

Journal ISSN

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

Citation

Source

Geology

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

Restricted until

2037-12-31