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Gustavo W. Bertotto, Maurizio Mazzucchelli, Tommaso Giovanardi, Rommulo V. Conceiçao, Alberto Zanetti, Manuel E. Schilling, Mauro I. Bernardi, Alexis D. Ponce, Tiago Jalowitzki, Fernanda Gervasoni and Anna Cipriani
Huanul is a shield volcano with several lava flows hosting mantle xenoliths erupted during the Pleistocene (0.84 ± 0.05 Ma). It is located in the southern part of the Payenia Volcanic Province, which is among the largest Neogene-Quaternary volcanic provi...
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Vittorio Scribano and Serafina Carbone
Geochemical characteristics of middle ocean ridge basalts (MORBs) testify partial melting of spinel-peridotite mixed with a few amounts of garnet-pyroxenite. The latter can be considered either autochthonous products of the crystallization of partial mel...
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Samanta Serra-Varela,Pablo D. González,Raúl E. Giacosa,Nemesio Heredia,David Pedreira,Fidel Martín-González,Ana María Sato
Pág. 102 - 130
In San Martín de los Andes area (Argentinian Patagonia) the Palaeozoic basement consists of metamorphic and plutonic rocks. The metamorphic rocks include strongly deformed schists, gneisses and migmatites. Their geochemical and petrographic characteristi...
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Vittorio Scribano, Serafina Carbone and Fabio Carmelo Manuella
Interpretation of seismic profiles and results of scientific drillings in the Mediterranean subseafloor provided indication of gigantic salt deposits which rarely crop out on land, such as in Sicily. The salt giants were ascribed to the desiccation, driv...
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Ivana Alejandra Urraza,Sergio Delpino,Laura Grecco
Pág. 36 - 55
Post-crystallization evolution of the metatroctolites of the Lago Ñorquinco zone, Aluminé Igneous-Metamorphic Complex, is analyzed. These mafic rocks show coronas around olivine, composed of Opx, Cpx, Spl and Amp (Hbl1 and Hbl2). The temporal evolution o...
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Hans Niemeyer,Marcelo Nava,Ivan Soto
Pág. 3 - 18
The processes associated with the interaction between the Pinchal Granodiorite (PG) and the kilometric Cerro Negro Xenolith (KCNX) are studied. The PG was cooled during the Late Carboniferous, whereas the age of the KCNX remain until now unknown. The KCN...
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