Writers : Nokhbatolfoghahaei, Ali; Khakzad, Ahmad; Behzadi, Mehrdad; Yazdi, mohammad
Refference : The 26th Symposium on Geoscieences;Tehran
Publishing Year : 1386

Abstract :

Chupan antimony deposit is located in the North of Lout desert, Central Iran. This area contains volcanic rocks of Early Tertiary, which are important sources for Sb, Pb & Zn, Ag, As, Cu and Au. Gold is below detection limit in major of these rocks. The main minerals are stibnite, galena, sphalerite, pyrite, arsenopyrite, pyrolusite and chalcopyrite. The mineralization is associated by pervasive alteration of sericitization, argillitization, silicification, carbonatization and propylitization. The alterations and mineralization are accompanied by faults directions, which seem to be main sources for hydrothermal circulation in these rocks.

During the study 77 samples were analyzed for Cu, Pb, Zn, Au, Ag, As, Sb, Hg, Cd and MO by AAS. Data processing showed that the Sb anomaly was developed mainly over the north and southeast area. The average of Sb content is about 4000ppm. There are good correlation between Sb and Pb and Ag. The fluid inclusion studies on calcite and quartz showed that mineralization has taken place in the range of 140- 180 and 180-220 C. Geological, petrological, mineralogical, geochemical and fluid inclusion studies showed that the Sb mineralization in the Chupan area is a epithermal type.

Subject List : Antimony