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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/6312
Title: SHRIMP U-Pb in zircon geochronology of the Chor granitoid: Evidence for neoproterozoic magmatism in the Lesser Himalayan granite belt of NW India
Authors: Singh, Sandeep
Barley M.E.
Brown S.J.
Jain A.K.
Manickavasagam R.M.
Published in: Precambrian Research
Abstract: Porphyritic and peraluminous granitoids of the Lesser Himalayan granite belt fringe the High Himalaya from Nepal to Pakistan. Magmatic zircons in the Chor granitoid in Himchal Pradesh define a SHRIMP U-Pb age of 823±5 Ma. This Neoproterozoic age contrasts with Cambro-Ordovician ages for other dated Lesser Himalayan granites, but is coeval with granite magmatism in the South China craton. Neoproterozoic magmatism within the northern margin of Gondwanaland may provide a more local source for detrital zircons in High Himalayan metasediments during the Neoproterozoic and early Paleozoic than the recently postulated East African orogen. © 2002 Elsevier Science B.V. All rights reserved.
Citation: Precambrian Research (2002), 118(43894): 285-292
URI: https://doi.org/10.1016/S0301-9268(02)00107-9
http://repository.iitr.ac.in/handle/123456789/6312
Issue Date: 2002
Keywords: Chor granitoid
Geochronology
Himalaya
SHRIMP
Zircon
ISSN: 3019268
Author Scopus IDs: 7406400956
7006217974
55937251300
57211729470
6602462208
Author Affiliations: Singh, S., Department of Earth Sciences, Indian Inst. of Technology Roorkee, Roorkee 247 667, India, Department of Geology, Sch. of Earth/Geographical Sci., University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
Barley, M.E., Department of Geology, Sch. of Earth/Geographical Sci., University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
Brown, S.J., Department of Geology, Sch. of Earth/Geographical Sci., University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
Jain, A.K., Department of Earth Sciences, Indian Inst. of Technology Roorkee, Roorkee 247 667, India
Manickavasagam, R.M., Department of Earth Sciences, Indian Inst. of Technology Roorkee, Roorkee 247 667, India
Funding Details: S. Singh thanks the Department of Science and Technology, New Delhi for the BOYSCAST fellowship. Neal McNaughton, Ian Fletcher and Bryan Krapez are thanked for discussion and reading earlier versions of this manuscript. Marion Marshall is thanked for preparing SHRIMP mounts. Zircon analyses were carried out on SHRIMP-II operated by a consortium consisting of Curtin University of Technology, the Geological Survey of Western Australia, and the University of Western Australia, with the support of the Australian Research Council.
Corresponding Author: Barley, M.E.; Department of Geology, Sch. of Earth/Geographical Sci., University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia; email: mbarley@geol.uwa.edu.au
Appears in Collections:Journal Publications [ES]

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