Wie der Meldung zu entnehmen ist, sind u. a. bereits signifikante Gold- und z. T. extrem hohe Silbergehalte festgestellt:
"...The principal mineralized zone at San Rafael ... Mineralization is completely oxidized, and consists mainly of weathered barite with goethite. The average NITON XRF analysis of 3 chip channel samples across different parts of this gossan is 39% Fe, 29% Ba, 5.3% S, 2.7% V, 0.2% Zn, 0.2% Pb, 0.1% Ni, 0.08% Cu, 411 ppm As and 254 ppm Sb (samples 25859, 61 and 62). The XRF also indicates that this gossan contains significant quantities of gold, but this was not apparent in panned concentrate, so evaluation of the gold potential will depend on fire assay methods. A sample of fresh mineralized rock from a dump outside one of the caved workings contains 49% Ba, 11% S, 6% Fe, 3% V, 5868 ppm Pb, 3734 ppm Sb, 1211 ppm Ni, 976 ppm As, 507 ppm Cu and 270 ppm Ag (sample 29978).
A second important zone at San Rafael outcrops 60 meters southwest of the building at 1850 meters elevation... near the surface yielded results of 3.6% Fe, 1.3% Ba, 6831 ppm S, 2621 ppm V, 2130 ppm Pb, 1042 ppm Sb, 878 ppm Cu, 739 ppm As and 306 ppm Ag across 1 meter (sample 26272). Below the historic workings, at 1825 meters elevation, Industrias Peñoles (the previous owner) built an adit 70 meters long oriented NW that cut through the old stope and exposed the VMS body, showing very clearly thin sulphide-sulfate laminations parallel to bedding. Sample 25855, cut across the laminations, contains 2.9% S, 2% Ba, 1.7% Pb, 3901 ppm Fe, 3623 ppm Zn, 2076 ppm V, 1163 ppm Ag, 793 ppm Cu, 679.4 ppm As, and 594 ppm Sb across 2 meters..."
(1 ppm = 10−6 = Teile pro Million = 0,0001 %, somit Gramm pro Tonne/g/t). |