Volume : I, Issue : VII, April - 2012

Sheared volcanics in the north of Pugging, East Siang District, Arunachal Pradesh

T. K. Goswami, P. Bhattacharyya, D. Bezbaruah

Abstract :

In the Pugging area of East Siang district, Arunachal Pradesh, tongue like extension of the Yingkiong Group consists mainly of shale–phyllite–dolostone and quartzites of the Bomdo formation. In the north of Pugging, quartzites of the Bomdo formation are metamorphosed to quartz–muscovite –chlorite schists. At 11km NW of Pugging, the volcanics are intermixed with the very low grade metasediments of the Siyom Group. Both the volcanics and the metasediments have undergone ductile shå overprinted by a ittle phase. The N–S trending shear zone at this place show lots of kinematic indicators from meso to grain scale with a dominant dextral shear sense. The sheared volcanics are hydrated while the metasediments are metamorphosed under greenschist facies condition. The sheå of the volcanics and metasediments may be coeval with the change in the axis of compression from ENE–WSW to E–W due to the Indian and Burmese plate collision.

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

T. K. Goswami, P. Bhattacharyya, D. Bezbaruah Sheared volcanics in the north of Pugging, East Siang District, Arunachal Pradesh Indian Journal of Applied Research, Vol.I, Issue.VII April 2012

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