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Evidence for late Precambrian to early Cambrian orogeny in northwest Himalaya, Pakistan

Published online by Cambridge University Press:  01 May 2009

M. S. Baig ,
R. D. Lawrence  and
L. W. Snee
M. S. Baig
Affiliation:
Department of Geology, Oregon State University, Corvallis, OR 97331, U.S.A.
R. D. Lawrence
Affiliation:
Department of Geology, Oregon State University, Corvallis, OR 97331, U.S.A.
L. W. Snee
Affiliation:
U.S. Geological Survey, Denver Federal Center, M.S. 905, Box 25046, Denver, CO 80225, U.S.A.
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Abstract

An angular unconformity below Cambrian rocks is present in the northwest Himalaya in the Hazara district, Pakistan. Low-grade metamorphism and folding with axial planar cleavage present in Precambrian rocks below the unconformity, but not in those above it, confirm orogenic deformation at this time. This is the first clear evidence for such a deformation episode and it may be referred to locally as the Hazaran orogeny. Anatectic peraluminous granites of the Himalaya are of only slightly younger age and may be related to this orogenic episode.

Type
Articles
Information
Geological Magazine , Volume 125 , Issue 1 , January 1988 , pp. 83 - 86
Copyright
Copyright © Cambridge University Press 1988

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