Browsing by Author "Schilling, M."
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Conceicao, Rommulo V.; Mallmann, G.; Koester, E.; Schilling, M.; Bertotto, G. W.; Rodríguez-Vargas, A. (ELSEVIER SCIENCE BV, 2005-06)Sr-Nd isotopic analyses on some mantle xenolith samples from the Northern, Southern and Austral Andean volcanic zones exhibit radiogenic Sr enrichment without dramatic changing of the Nd isotopic composition. This anomalous ...
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Re-Os isotope constraints on subcontinental lithospheric mantle evolution of southern South America Schilling, M.; Carlson, R. W.; Koester, E.; Conceição, R. V.; Bertotto, G. W.; Dantas, C. (ELSEVIER SCIENCE BV, 2008-04-15)We present Re-Os isotopic data for widely dispersed mantle xenoliths carried to the surface of southern South America (36 degrees-52 degrees S) by Eocene to recent alkaline magmatism. Our hypothesis is that the lithospheric ...
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Schilling, M.; Conceição, Rommulo V.; Mallmann, G.; Koester, E.; Kawashita, K.; Hervé Allamand, Francisco; Morata Céspedes, Diego; Motoki, A. (ELSEVIER SCIENCE BV, 2005-06)Cerro Redondo is an ancient cinder cone now almost completely eroded, sited over a sill that corresponds to a sub-volcanic magma chamber, in Santa Cruz province, Patagonia, Argentina. It is composed of Pliocene-Pleistocene ...