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Petrography and age of the rocks of Bulland Hill, Kirana Hills, Sarghoda District, West Pakistan

Published online by Cambridge University Press:  01 May 2009

R. G. Davies  and
A. R. Crawford
R. G. Davies
Affiliation:
Geological Survey Institute, P.O. Box 1555 Tehran, Iran
A. R. Crawford
Affiliation:
Department of Geophysics and Geochemistry, Institute of Advanced Studies, Australian National University, Canberra, Australia2600.
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Summary

Petrographic and geochronological studies of the rocks of Bulland Hill, an inlier of basement in the Punjab alluvium, are reported. Acid and basic pyroclastic and high-level intrusive types give an Rb–Sr isochron age of 870±40 million years. The previous correlation with the Malani Rhyolite Series of north-western India must be abandoned.

A porphyry boulder from the Permo-Carboniferous boulder bed, probably a tillite, in the Salt Range has the same age as the Bulland Hill rocks.

Type
Articles
Information
Geological Magazine , Volume 108 , Issue 3 , May 1971 , pp. 235 - 246
Copyright
Copyright © Cambridge University Press 1971

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References

Crawford, A. R. 1969. India, Ceylon and Pakistan: New Age Data and Comparisons with Australia. Nature, Lond. 223, 380–4.CrossRefGoogle Scholar
Crawford, A. R. 1970. The Precambrian geochronology of Rajasthan and Bundelkhand, northern India. Can. J. Earth Sci. 7, 91–110.Google Scholar
Crawford, A. R. & Compston, W. 1970. The age of the Vindhyan System. Q. Jl geol. Soc. Lond. 125, 351–71.CrossRefGoogle Scholar
Heron, A. M. 1913. The Kirana and other Hills in the Jech and Rechna Doabs. Rec. geol. Surv. India, 43, 229–36.Google Scholar
La, Touche T. H. D. 1902. Geology of Western Rajputana. Mem. geol. Surv. India, 35, 16 pp.Google Scholar
McIntyre, G. A., Brooks, C., Compston, W. & Turek, A. 1966. The statistical assessment of Rb-Sr isochrons. J. geophys. Res. 71, 5459–68.CrossRefGoogle Scholar
Tugarinov, A. I., Shanin, L. L., Kazakov, G. A. & Arakelyants, M. M. 1965. On the glauconite ages of the Vindhyan System (India) Geokhimiya, No. 6 of 1965, 652–60 (in Russian).Google Scholar
Vinogradov, A. P., Tugarinov, A. I., Zhikov, C. I., Stupnikova, N. I., Bibikova, E. V., Knorre, K. G. & Melnikova, G. L. 1966. Geochronology of the Precambrian of India. In: Absolute Dating of Tectonomagmatic Cycles and Stages of Orogeny during 1964, pp. 394–408, Moscow, Academy of Sciences (in Russian).Google Scholar