Zircon U-Pb age constraints on the Paleoproterozoic sedimentary basement of the Ediacaran Porongos Group, Sul-Riograndense Shield, southern Brazil
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- 作者：Juliana Pertille ; juliana.pertill@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Lé ; o Afraneo Hartmann ; Ruy Paulo Philipp
- 关键词：Zircon ; U&ndash ; Pb data ; Provenance ; Paleoproterozoic basement ; Porongos Group
- 刊名：Journal of South American Earth Sciences
- 出版年：2015
- 出版时间：November 2015
- 年：2015
- 卷：63
- 期：Complete
- 页码：334-345
- 全文大小：3290 K
文摘
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The maximum depositional age of the Santana Formation is 2.03 Ga possibly up to 1.7 Ga.
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The Porongos Group had Paleoproterozoic to Neoproterozoic sources.
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The tectonic evolution of the quartzite cover and the Porongos Group was distinct in time and environment.