Hostname: page-component-8448b6f56d-mp689 Total loading time: 0 Render date: 2024-04-24T04:21:39.658Z Has data issue: false hasContentIssue false

Fission track ages of biotites from crystalline rocks of Khammam district, Andhra Pradesh, India

Published online by Cambridge University Press:  01 May 2009

M. K. Nagpal
Affiliation:
Department of Physics, National Defence Academy, Khadakvasla, Pune, 411023, India
K. B. Powar
Affiliation:
Department of Geology, University of PoonaPune, 411007, India
K. K. Nagpaul
Affiliation:
Department of Physics, Kurukshetra University, Kurukshetra, 132119, India

Summary

A modified fission track technique has been used for datingbiotite flakes from crystalline rocks of Khammam district in Andhra Pradesh, India. The recorded fission track ages of 368±15 Ma to 616±20 Ma, with a mean of 475±90 Ma, correspond to the period of the Indian Ocean cycle. The data suggest an average cooling rate of about 0.6 °C per million years for the closing phase of this cycle.

Type
Articles
Copyright
Copyright © Cambridge University Press 1978

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Fleischer, R. L. & Price, P. B. 1964. Techniques for geological dating of minerals by chemical etching of fission fragment tracks. Geochim. cosmochim. Acta 28, 1705–14.Google Scholar
Fleischer, R. L., Price, P. B. & Walker, R. M. 1975. Nuclear Tracks in Solids: Principles and Applications. Berkley: University of California Press.CrossRefGoogle Scholar
Gupta, M. L., Mehta, P. P. & Nagpaul, K. K. 1971. Fission track ages ofsome Indian biotites. Ind. J. Pure Appl. Phys. 9, 466–9.Google Scholar
Gupta, M. L., Nagpaul, K. K. & Mehta, P. P. 1971. Fission track of someIndian muscovites. Can. J. Earth Sci. 8, 1491–5.CrossRefGoogle Scholar
Hanna, G. C., Westcott, C. H., Lemmel, H. D., Leonard, B. R., Story, J. S. & Attree, P. M. 1969. Revision of values for the 2200 m/s neutron constants for four fissile nuclideg. At. Energy Rev. 7/4, 392.Google Scholar
Jaffey, A. H., Flynn, K. F., Glendenin, L. E., Bentley, F. C. & Essling, A. M. 1971. Precision measurements of half lives and specific activities of 235U and 238U. Phy. Rev. C. 4, 1889–906.CrossRefGoogle Scholar
Mehta, P. P. & Nagpaul, K. K. 1971. Fission track ages of mica belts and some other Precambrian muscovites of India. Pure Appl. Geophys. 87, 174–91.CrossRefGoogle Scholar
Nagpal, M. K. & Nagpaul, K. K. 1974 a. Thermal history of Rajasthan pegmatites of India as revealed by Fission track studies. Can. J. Earth Sci. 11, 519–25.CrossRefGoogle Scholar
Nagpal, M. K. & Nagpaul, K. K. 1974 b. Fission track age of some Himalayan muscovite. Himalayan Geol. 4, 447–52.Google Scholar
Nagpaul, K. K. 1973. Fission track ages of some muscovites of the Nellore mica belt. In Recent Researches in Geology, vol. 1 (ed. Verma, V. K.),pp. 4152. Delhi: Hindustan Publishing Corporation.Google Scholar
Nagpaul, K. K. & Mehta, P. P. 1975. Cooling history of South India as revealed by fission track studies. Am. J. Sci. 275, 753–62.CrossRefGoogle Scholar
Nagpaul, K. K., Mehta, P. P. & Gupta, M. L. 1974. Fission track ages of Nellore mica belt of India. Pure Appl. Geophys. 112, 140–8.CrossRefGoogle Scholar
Nagpaul, K. K., Nand, Lal, Mehta, P. P. & Nagpal, M. K. 1975. Fission track geochronology of India. Bull. Geophys. Res. 13, 257–71.Google Scholar
Pichamuthu, C. S. 1971. Precambrian geochronology of Peninsular India. J. geol. Soc. India. 12, 262–73.Google Scholar
Rao, Y. J. & Raju, Ch. S. 1968. Tectonic history of the area East of Khammam, Andhra Pradesh. J. geol. Soc. India. 9, 138–45.Google Scholar
Sarkar, S. N. 1972. Present status of Precambrian geochronology of Peninsular India. 24th Int. Geol. Cong. Montreal., sec 1, 262–72.Google Scholar
Sharma, K. K., Nagpal, M. K., Nagpaul, K. K. & Jhingran, A. G. 1975. Fission track geochronology of Early Precambrian, Rajasthan, India. Chayanica Geologica. 1, 196211.Google Scholar
Wagner, G. A., Reimer, G. M., Carpenter, B. S., Faul, H., Linden, R. V. D. & Gijbels, R. 1975. The spontaneous fission rate of U-238 and fission track dating. Geochim. cosmochim. Acta. 39, 1279–86.Google Scholar