Petrology, geochemistry and fluid inclusion studies of Cu-Au mineralization in paleoproterozoic Salumber-Ghatol belt, Aravalli Supergroup, Rajasthan

被引：0
|
作者：
I. R. Fareeduddin
Suresh Kirmani
机构：
[1] PPOD Division,AMSE Wing
[2] SR,undefined
[3] Western Region,undefined
[4] West Zone,undefined
[5] Geological Survey of India,undefined
来源：
Journal of the Geological Society of India | 2012年 / 80卷
关键词：
Petrology; Carbonates; Copper; Gold; IOCG; Mineralization; Stable Isotopes; Salumber; Ghatol; Aravalli Supergroup; Paleoproterozoic; Rajasthan;
D O I：
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学科分类号：
摘要：
The Salumber-Ghatol belt in Rajasthan, India, situated along southern margin of the Aravalli Craton, hosts a cluster of Cu-Au deposits in calcitic and dolomitic marbles that belong to Debari Group of the Paleo-mesoproterozoic Aravalli Supergroup. The Fe-Mn rich dolomitic marble of the Delwara Formation hosts Cu-Au-Fe-oxide mineralization at Ghagri and associated distal K-Fe-Mg rich altered rocks (cryptocrystalline microcline + magnesioriebeckite + magnetite + phlogopite) and proximal feldspathised carbonate rocks (medium grained albite + microcline + dolomite + magnetite). The calcitic marble of Mukandpura Formation hosts Dugocha Cu-Au deposit with development of distal graphitetourmaline-bearing albitites and proximal albite-microcline-magnetite rocks. Calcite and dolomite carbonates of Bhukia region with development of albite-actinolite-bearing alteration assemblages host the largest of the Cu-Au deposits in this belt. The second generation folds and associated ductile-brittle shear zones of the multiply deformed events constitute conduits for the mineralizing fluids at all locations in this belt.
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页码：5 / 38
页数：33
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