Gold mineralization in Bubin area, Gilgit-Baltistan, Northern Areas, Pakistan

  • Laeiq Ahmad
  • Shuhab D. Khan
  • M. Tahir Shah
  • Noor Jehan
Original Paper
  • 118 Downloads

Abstract

The complex history of crustal evolution and the diverse geological history of Northern areas of Pakistan (i.e., Indian Plate, Kohistan-Ladakh Island arc, and Eurasian Plate) made the area most favorable for economic mineral deposits such as gold and copper. Sulfide-bearing mineralized rock samples from Ladakh terrane are analyzed for gold, silver, and base metals. Bulk samples analyses for gold, silver, and base metal concentrations demonstrate that almost all samples have variable amounts of gold, silver, and base metals. In these samples, gold concentration up to 95 ppm was found in chalcopyrite, galena-rich mineralized quartz veins, and their alteration products. The mineralized veins are few meters to 10 m wide and are associated with dioritic rocks. Dominant minerals in the mineralized zone include galena, chalcopyrite, limonite, pyrite, and malachite. The enrichment and depletion of different types of minerals suggest that the magmatic hydrothermal fluids played a key role in copper and lead mineralization with gold concentration. Study of ore minerals in these samples shows association with sulfide-bearing alterations in shear zones.

Keywords

Gold mineralization Ore microscopy QEMSCAN Kohistan-Ladakh Pakistan 

Notes

Acknowledgements

We are very thankful to National Centre of Excellence in Geology, University of Peshawar, Pakistan and Department of Earth & Atmospheric Sciences, University of Houston, USA for providing all the facilities for this research work.

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Copyright information

© Saudi Society for Geosciences 2018

Authors and Affiliations

  1. 1.Department of GeologyUniversity of SwabiAnbarPakistan
  2. 2.National Centre of Excellence in GeologyUniversity of PeshawarPeshawarPakistan
  3. 3.Department of Earth and Atmospheric SciencesUniversity of HoustonHoustonUSA
  4. 4.FATA UniversityAkhurwalPakistan
  5. 5.Centre for Disaster Preparedness and ManagementUniversity of PeshawarPeshawarPakistan

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