Granite-hosted molybdenite mineralization from Archean Bundelkhand craton-molybdenite characterization, host rock mineralogy, petrology, and fluid inclusion characteristics of Mo-bearing quartz

作者：Pati J K^*; Panigrahi M K; Chakarborty M

来源：Journal of Earth System Science, 2014, 123(5): 943-958.

DOI：10.1007/s12040-014-0454-8

• Molybdenite
• granitoids
• fluid inclusion
• Bundelkhand Tectonic Zone
• Bundelkhand craton

The dominantly high-K, moderate to high SiO2 containing, variably fractionated, volcanic-arc granitoids (+/- sheared) from parts of Bundelkhand craton, northcentral India are observed to contain molybdenite (Mo) in widely separated 23 locations in the form of specks, pockets, clots and stringers along with quartz +/- pyrite +/- arsenopyrite +/- chalcopyrite +/- bornite +/- covellite +/- galena +/- sphalerite and in invisible form as well. The molybdenite mineralization is predominantly associated with Bundelkhand Tectonic Zone, Raksa Shear Zone, and localized shear zones. The incidence of molybdenite is also observed within sheared quartz and tonalite-trondhjemite-granodiorite (TTG) gneisses. The fluid inclusion data show the presence of bi-phase (H2O-CO2), hypersaline and moderate temperature (100 degrees-300 degrees C) primary stretched fluid inclusions suggesting a possible hydrothermal origin for the Mo-bearing quartz occurring within variably deformed different granitoids variants of Archean Bundelkhand craton.

• 出版日期2014-7