An Appraisal of Geology and Mineralization In Gol-Banoo Area.

Category Economic geology & mineral exploration
Group GSI.IR
Location The 25 Symposium of Geosciences
Author Saadat,S-Ghoorchi,M
Holding Date 01 July 2007

  Abstract :

The region is located in east part of Torbat-e-Jam. It is placed along the east side of Alborz۱:placename> Mountains۱:placetype>۱:place> and close to the suture zone of Iran and Tooran plate, on the Iranian side. The rock units are as follows: shale, conglomerate (Jurassic), marl, limestone, basalt, andesite, trachyandesite, tuff, agglomerate plus rhyodacite and quartz monzonite dikes (paleogene- neogene). The evidences of mineralization are in the form of sulfide minerals such as, chalcopyrite, pyrite, arsenopyrite and secondary copper minerals such as malacite especially around the fault zones and near the dikes as veins and veinlets. Plenty of industrial soil is founded in extensive areas of the south and southwest of this region as well. The results from chemical analysis of stream sediments indicate an unusual assay for the following elements, As, Sb, Pb, Fe, Sn, Ni, Co, Ba, and B. The soil samples taken also approve this abnormality. Chemical analysis show the presence of Copper in all samples while the maximum amount reported was ۴۹۱۰ppm. Within the same samples, there was ۴۹۵۰ppm Pb, ۱۵۵۰ Zn, ۲۴۴۰ppm As, and ۱۸۹ppm U measured at most. The samples taken were from mineral veins containing ۱.۴۷ppm Cu, and ۲۱۱۴ppm lead, and ۲۳۴ppm Arsenic that designate the odd concentration of the above elements. Amount of gold has been reported as ۲۱ppb at most and even less in the other samples. The strategic significance of this region, in addition to the frequent evidences of mineralization along west (Gold in Tarik Darreh and Antimony in Sirzar area) demand more detailed investigations for this province.  


tags: QAZVIN