Abstract Views :194 |
PDF Views:2
Authors
Affiliations
1 AMD Complex, Begumpet, Hyderabad - 500 016, IN
2 AMD Complex, Civil Lines, Nagpur - 440 001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 70, No 6 (2007), Pagination: 993-1002
Abstract
Signatures of concealed Unconformity-Related uranium mineralization at the contact of Chhotanagpur Granite Gneissic Complex [CGGCJ/Mahakoshal and Lower Vindhyan Semri sequence have come to light at Baskati, in Vindhyan- Mahakoshal Basin, following a multipronged exploration strategy. Systematic lithogeochemical sampling brought out uranium halos and most significant signals with concentration sufficiently above the normal background closely associated with breccias along reactivated faults and fractures occurring parallel and also oblique to the unconformity contact extending for a strike length of 17 km. Alteration halos and signatures like hematitisation, chloritisation and ilhtisation characterize the vicinity of these reactivated faults and fractures Geochemical study indicates a hypogene source for mineralizing fluids supported by geology, structure and lithogeochemistry and an 'Unconformity-Related uranium mineralization model' has been envisaged with the target area narrowed down for subsurface exploration.
Keywords
Geochemical Modelling. Uranium Mineralization, Unconformity, Alteration Halos, Baskati Area, Madhya Pradesh.
