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Authors
Affiliations
1 Geological Survey of India, Western Region, Jaipur – 302 004, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 72, No 6 (2008), Pagination: 808-814
Abstract
During the course of exploratory drilling in mineralised belts of Rajasthan, mise-a-la-masse has been carried out as a routine measure to delineate the subsurface disposition of ore body in X-Y direction. This, a post discovery geophysical method was tried and found to be very effective in tracing the extension of polymetallic sulphide and their interconnectivity in the boreholes.
In Biranthiya area, mise-a-la-masse was conducted and a borehole suggested on the basis of equipotential map intersected richer mineralization. In Kalabar, Biranthiya and Delwara area, the survey has also reflected plunge of the ore body. Equipotential maps of all the areas show the compaction of contours in up-dip side, which clearly indicates the dip of the mineralized body. The anomaly axis of mise-a-la-masse is well corroborated with the axis of Self-Potential in Kalabar and Biranthiya areas, Pali District, Rajasthan. This paper reveals the success of mise-a-lamasse technique applied to some mineral prospects of Rajasthan in deciphering the subsurface disposition, dip and attitude of the ore body.
Keywords
Mise-a-la-Masse, Subsurface Disposition, Exploration, Mineralisation, Rajasthan.
