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![](./images/clear.gif) 1.- 30 million years of Permian volcanism recorded in the Choiyoi igneous province (W Argentina) and their source for younger ash fall deposits in the Parana Basin; SHRIMP U-Pb zircon geochronology evidence
Elsevier on behalf of International Association for Gondwana Research; Amsterdam and Kochi; III; Int, 2011
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![](./images/clear.gif) 2.- U-Pb and K-Ar geochronological constraints on the tectonothermal evolution of the Precambrian terranes of the SE Sao Paulo State, Brazil
American Geophysical Union; Washington, DC; USA; United States, 2008
AGU 2008 fall meeting
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