Gold mineralization in Bubin area, Gilgit-Baltistan, Northern Areas, Pakistan
| Autor: | Noor Jehan, Laeiq Ahmad, M. Tahir Shah, Shuhab D. Khan |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Mineralization (geology)
Chalcopyrite QEMSCAN 0211 other engineering and technologies Geochemistry 02 engineering and technology engineering.material 010502 geochemistry & geophysics 01 natural sciences Galena visual_art visual_art.visual_art_medium engineering General Earth and Planetary Sciences Pyrite Base metal Geology 021101 geological & geomatics engineering 0105 earth and related environmental sciences General Environmental Science Limonite Terrane |
| Zdroj: | Arabian Journal of Geosciences. 11 |
| ISSN: | 1866-7538 1866-7511 |
| DOI: | 10.1007/s12517-017-3354-9 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink