Abor Volcanics of the Arunachal Himalaya
Authors
-
Department of Geology and Geophysics, University of Roorkee, Roorkee 247672, U.P
A. K. Jain -
Wadia Institute of Himalayan Geology, Dehra Dun, U.P.
V. C. Thakur
Abstract
The Abor Volcanics of the Arunachal Himalaya are typically exposed along the Dihang Valley as penecontemporaneous lava flows, sills, dykes, volcanic breccia and metatuffs.
Although the Abor Volcanics are so far considered contemporaneous to the Panjal Volcanics of the North-West Himalaya, they are typically associated with probable Precambrian-Middle Palaeozoic Siang and Mid Groups and are distinctly older to the Gondwana. Thus, Late Precambrian-Lower Palaeozoic volcanic activity is widely manifested in the Himalaya from Kashmir to Arunachal Pradesh and is represented by the Baifliaz Volcanics in Kashmir, Mandt-Darla Volcanics (in parts) in Himachal Pradesh, penecontemporaneous lavas in Garhwal Group in Kumaon and Garhwal, Karnaprayag Volcanics, Bhowali Volcanics and Abor Volcanics. This volcanism is older to an equally widespread Late Palaeozoic volcanism of the Kashmir Himalaya and Eastern Himalaya.
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