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Research Interests:
My overall research interests are the application of U-Pb, Sm-Nd, and Rb-Sr geochronology and radiogenic isotope geochemistry to the evolution of Proterozoic continental crust, its tectonic history, and its role in Proterozoic supercontinent cycles. Specific regions of interest have included the Great Lakes area (Minnesota-Wisconsin-Upper Michigan-Ontario), northern Saskatchewan, the Northwest Territories of Canada, basement rocks of the U.S. midcontinent, Proterozoic terranes in northeastern Brazil and pre-drift extensions into West Africa, southwestern parts of the Amazon craton, and portions of the Ross orogen in Antarctica. The major orogenic cycles span the interval from 2200 Ma to 500 Ma, and one of my goals is to relate coeval cycles in diverse continents to each other on a global scale (where justified) and sequential cycles in specific areas to modes of continental growth.
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Geologia USP. Série Científicano. 1 (2015): 57-93
A. F. Da Silva Filho,I. P. Guimarães,W. R. Van Schmus,R. A. Armstrong, J. M. Rangel da Silva,L. S. Osako, L. M. Cocentino
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