Occurrence of platinum group minerals in the Las Aguilas ultramafic unit within a granulite facies basement, San Luis province, central Argentina.

MOGESSIE, A; HOINKES, G; STUMPFL, E F; BJERG, E A; KOSTADINOFF, J

Mineral Deposits: From Their Origin to Their Environmental Impacts

A.A. BALKEMA Publishers

Lugar: Brookfield; Año: 1995; p. 897 - 900

<!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} @page Section1 {size:21.0cm 842.0pt; margin:70.9pt 3.0cm 70.9pt 3.0cm; mso-header-margin:35.45pt; mso-footer-margin:35.45pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> Palladium bismuthotellurides (Merenskyite) and platinum arsenide (sperrylite) are documented in drill cores of the Las Aguilas ultramafic body, San Luis province, central Argentina. The platinum group minerals are found in sulphide - spinel rich norite at a depth of 90 to 120 meters. Geophysical exploration work has delineated the extent of the Cu-Ni mineralized ultramafic body surrounded by a granulitic basement. Geochemical data, especially the PGE geochemistry indicate that there is a correlation between Pt-enrichment and negative Sm - anomaly.