Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

Rajinder Parshad ¹, Nand Lal ², K. K. Nagpaul ¹

Affiliations
1 Department of Physics, Kurukshetra University, Kurukshetra-132119, IN
2 Electrologging Section, Oil and Natural Gas Commission, Ahmedabad-380005, IN

Abstract

Fission track ages of two cogenetic minerals viz., garnet and apatite collected from the pegmatites of Nellore Mica. Belt of India, emplaced during the closing stages of the Eastern Ghats Orogeny (1500-1600 Ma) are found to be 1065 Ma and 440 Ma respectively. The data has been interpreted in terms of tectonic uplift of the pegmatites. The average rate of uplift for this region has been calculated as 0.04 mm/year.

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