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2.0 Ga Granite of the Lower Package of the Higher Himalayan Crystallines, Maglad Khad, Sutlej Valley, Himachal Pradesh
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Geophysics.
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2006 (English)In: Journal of the Geological Society of India, ISSN 0016-7622, Vol. 67, no 3, 295-300 p.Article in journal (Refereed) Published
Abstract [en]

Along the Sutlej valley, the lower package of the Higher Himalayan Crystallines (HHC) exposes a small concordant to discordant intrusive grey granite-The Maglad Khad Granite, within garnet mica schist/banded gneiss of the Jeori Formation. This body is fine grained and foliated along the margins, whereas the central part is relatively undeformed. This body along with aplites and pegmatites intrudes the country rock during early to syn-D-1 deformation. This is later affected by the most pervasive D-2-deformation producing gneissosity within the granite. U-Pb dating of zircons by conventional isotopic dilution technique yield an upper intercept age of 2068 +/- 5 Ma (2 sigma) from 6 zircon-fractions with MSWD=0.93, constraining the age of crystallization in the basal parts of the HHC during Early Proterozoic as well as the constraining pre-Himalayan fabric development.

Place, publisher, year, edition, pages
2006. Vol. 67, no 3, 295-300 p.
Keyword [en]
Higher Himalayan Crystallines, Maglad Khad Granite, geochronology, U-Pb zircon dating, Sutlej valley, Himachal Pradesh
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:uu:diva-13452ISI: 000239983500003OAI: oai:DiVA.org:uu-13452DiVA: diva2:41222
Available from: 2008-01-23 Created: 2008-01-23 Last updated: 2011-06-21Bibliographically approved

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