INGEOSUR 20376
INSTITUTO GEOLOGICO DEL SUR
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Wollastonite-Scapolite-Grandite granulite marbles and impure dolomite-marbles from Valle Fertil-La Huerta Ranges, San Juan Province, NW. Argentina
Autor/es:
GALLIEN, F.; MOGESSIE, A; BJERG, E A; DELPINO, S; CASTRO DE MACHUCA, B
Lugar:
San Salvador de Jujuy
Reunión:
Congreso; XVII Congreso Geologico Argentino; 2008
Institución organizadora:
Asociación Geológica Argentina
Resumen:
Granulite calc-silicate marbles occur in the Valle Fértil-La Huerta Ranges (30°00´-31°28´ S and 67°15´-68°10´ W) in San Juan Province, NW Argentina. These Ranges are constituted mainly by granulite gneisses and migmatites with interlayered siliceous marbles of various thicknesses. Tonalitic- granodioritic and gabbroic-dioritic rocks of Lower Paleozoic age are considered to provide the heat source for a regional contact metamorphism at about 6-7 kbar, with temperatures in excess of 860 °C.
