INGEIS   05370
INSTITUTO DE GEOCRONOLOGIA Y GEOLOGIA ISOTOPICA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Tourmaline granites of the Conlara Metamorphic Complex,
Autor/es:
LÓPEZ DE LUCHI, M.G.; IANIZZOTTO, N.F.; MARTÍNEZ DOPICO, C.I.; CERREDO, M.E.
Lugar:
Neuquén
Reunión:
Congreso; 18 Congreso Geológico Argentino; 2011
Institución organizadora:
Universidad del Comahue
Resumen:
The Ordovician Los Alanices granite includes muscovite granites (MsG) and muscovite-tourmaline leucogranites (MsTG)  and belongs to the low-temperature muscovite leucogranites of the Ordovician granodiorite?granite suite (OGGS; peraluminous calcic to calc-alkaline granodiorite?monzogranites) of the Sierra de San Luis. K-Ar muscovite cooling age of 420 ± 9 Ma was calculated for the MsTG whereas muscovite from the near El Peñón muscovite leucogranite (SHRIMP U/Pb zircon age of 497 ± 8 Ma) yielded 439 ± 10 Ma  Magmatic to high temperature solid-state deformation argues for an early Famatinian syn-kinematic emplacement for the MsG .
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