CONICET | Buscador de Institutos y Recursos Humanos

The Pampean pegmatite province contains most of the granitic pegmatites of Argentina. It has economic mineral resources that had been mined during the past 80 years, producing in excess of 1 Mt of feldspar of ceramic grade, 1Mt of quartz, 50,000 t of mica, 25,000 t of beryl,10,000 t of spodumene, 45 t of tantalum minerals, and 10 t of bismuth minerals. It extends discontinuously for more that 800 km N-S and 200 km E-W, from 24°30´ to33°30´S, mostly in the Sierras Pampeanas of northwestern and central Argentina. Itspossible extension to the South could be even more than 400 km as indicated bydiscontinuous outcrops under recent cover. The present review updates previousinterpretations (Galliski 1994a, b).