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Contribution of SHRIMP U–Pb zircon geochronology to unravelling the evolution of Brazilian Neoproterozoic fold belts |
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| Authors: | Miguel Angelo Stipp Basei Benjamim Bley Brito Neves Oswaldo Siga Junior Marly Babinski Marcio Martins Pimentel Colombo Celso Gaeta Tassinari Maria Helena Bezerra Hollanda Allen Nutman Umberto Giuseppe Cordani |
| Institution: | 1. Instituto de Geociencias, USP, São Paulo 05508-080, Brazil;2. Instituto de Geociencias, UNB, Brasilia, Brazil;3. School of Earth and Environmental Sciences, University of Wollongong, Wollongong, NSW, 2522, Australia;4. Research School of Earth Sciences, Australian National University, ACT 0200, Australia;5. Beijing SHRIMP Center, Institute of Geology, Chinese Academy of Geological Sciences, 26 Baiwanzhuang Road, Beijing 100037, China |
| Abstract: | The South-American continent is constituted of three major geologic–geotectonic entities: the homonym platform (consolidated at the end of the Cambrian), the Andean chain (essentially Meso-Cenozoic) and the Patagonian terrains, affected by tectonism and magmatism through almost all of the Phanerozoic. The platform is constituted by a series of cratonic nuclei (pre-Tonian, fragments of the Rodinia fission) surrounded by a complex fabric of Neoproterozoic structural provinces. |
| Keywords: | U&ndash Pb dating zircon South American Platform Neoproterozoic |
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