The Mesoproterozoic Maz terrane in the Western Sierras Pampeanas, Argentina, equivalent to the Arequipa-Antofalla block of southern Peru? Implications for West Gondwana margin evolution
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Casquet, Cesar; Pankhurst, Robert J; Rapela, Carlos W; Galindo, Carmen; Fanning, Christopher; Chiaradia, M.; Baldo, Edgardo; Gonzalez-Casado, Jose M; Dahlquist, Juan A.
Description
The rocks of Sierra de Maz and Sierra del Espinal (Western Sierras Pampeanas) represent pre-Famatinian (Ordovician) basement. Isotope compositions (Nd and Pb) of metasedimentary rocks and SHRIMP U-Pb dating of detrital zircons, combined with other geological evidence, show that three parallel N-S domains can be recognized. The central Maz Domain contains pre-Grenvillian metasedimentary rocks deposited between 1.2 and 1.6 Ga, that underwent Grenvillian granulite facies metamorphism and were...[Show more]
Collections | ANU Research Publications |
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Date published: | 2008 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/33803 |
Source: | Gondwana Research |
DOI: | 10.1016/j.gr.2007.04.005 |
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01_Casquet_The_Mesoproterozoic_Maz_2008.pdf | 700.57 kB | Adobe PDF | Request a copy |
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