INVESTIGADORES
FOUGA Gaston Galo
congresos y reuniones científicas
Título:
Anomalías de U en el Depósito de Cu Tordillos Hospedado en las Rocas Cretácicas del Grupo Neuquén, Dorsal de Huincul, Argentina
Autor/es:
PONS JOSEFINA; IMPICINI AGNES; APARICIO P.; GIUSIANO A.; FOUGA G. G.
Lugar:
San Juan
Reunión:
Congreso; XI MINMET Congreso de Mineralogía y Metalogénesis; 2013
Institución organizadora:
ASOCIACIÓN MINERALÓGICA ARGENTINA
Resumen:
The Tordillos prospect is a copper (U-V) deposit hosted in the coarsest facies of the paleochannels of Huincul Formation. The U anomalies (135 ppm and 251 ppm) are erratic and correlate with the presence of abundant supergene V-U-bearing minerals. Copper mineralization consists of interstitial Cu and Fe sulfides replacing early barite cement (1, 2). A tree generation of barite (3) veins cut the previous cements and grains. Uranium mineralization consists of francevillita and carnotite and is spatial associated to barite (cements and veins) and Cu supergene minerals. Their textural relationships have revealed that copper sulfates precipitation played an important role in the precipitation of K and Ba uranil vanadates.
