Caracterización geoquímica y mineralógica de rocas sedimentarias en el Polígono La Hoyada, sector Puyango con fines prospectivos

Abstract

The present investigation aimed to conduct a geochemical prospecting study in sedimentary rocks at the La Hoyada polygon in the Puyango sector, to identify possible mineral deposits through chemical analysis of the samples collected in the field, as well as mineralogical analyzes.

Specific physical and chemical analyzes were used to sample rocks of black shales, calcareous shales and limestones of the Unidad Ciano, in order to identify majority elements and traces, through which the uranium and vanadium mineralization could be determined in area. For which X-ray diffraction and X-ray fluorescence analysis were used. Abnormal values of uranium (62 ppm) were detected in the sample Afl. 12 that corresponds to a black shale in the El Derrumbo sector and anomalous values of vanadium (2500 ppm) in the sample Afl. 27 corresponding to a calcareous shale in the El Empalme sector, the same ones belonging to the Unidad Ciano. Abnormal values of molybdenum, lead, cobalt, zinc, zirconium, palladium and copper were also detected.