Fission track ages of mica belts and some other precambrian muscovites of India

Mehta, P. P.; Nagpaul, K. K.

doi:10.1007/bf00878922

Cited by 7 publications

(3 citation statements)

References 14 publications

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“…But the geochronological studies by a number of workers (Aswathanarayana 1956(Aswathanarayana , 1959(Aswathanarayana , 1964Crawford 1969Crawford , 1970Gupta et al 1971 ;Holmes 1949Holmes , 1950Holmes , 1955Nagpaul 1970, 1971;Sarkar 1962Sarkar , 1968Sarkar et al 1964;Vinogradov et al 1966) have delineated the main orogenic metamorphic cycles in different regions of the Indian Peninsula. The present study, though limited in scope and number of samples, broadly corroborates them.…”

Section: Discussion Of Resultsmentioning

confidence: 96%

“…For lesser ages the density of fossil tracks in muscovite is usually too low to give statistically meaningful results. Nagpaul 1970, 1971) mine), Nellore District, A.P.…”

Section: Discussion Of Resultsmentioning

confidence: 98%

“…A number of minerals, such as muscovite, biotite, apatite, zircon, sphene, and epidote, have been considered suitable for dating rocks. Mehta and Rama (1969) and Mehta and Nagpaul (1971) used muscovite for dating Precambrian igneous and metamorphic rocks. In the present study seven samples of muscovite of pegmatitic origin, collected from different mica mines of India, have been dated by following an experimental technique similar to that of Mehta and Rama (1969) and Mehta and Nagpaul(l971).…”

Section: Introductionmentioning

confidence: 99%

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Fission Track Ages of some Indian Muscovites

Gupta¹,

Nagpaul²,

Mehta³

1971

Can. J. Earth Sci.

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Seven samples of muscovite from three main mica-producing regions of India, i.e. Rajasthan, Bihar, and Andhra Pradesh, have been dated by the fission track technique. The geological annealing of fossil radiation damage has been assessed by comparative study of induced and fossil track lengths. The uranium concentration has been measured in tight cleavages so as to avoid errors due to contamination. The measured ages give an indication of the main orogenic metamorphic cycles in the respective regions.

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Section: Discussion Of Resultsmentioning

confidence: 96%

“…For lesser ages the density of fossil tracks in muscovite is usually too low to give statistically meaningful results. Nagpaul 1970, 1971) mine), Nellore District, A.P.…”

Section: Discussion Of Resultsmentioning

confidence: 98%