NDLI: Tectonic forcing of drainages and geomorphic features developed across Himalayan mountain frontal part of western limb of Siang Antiform, Arunachal Himalaya

Content Provider	Springer Nature Link
Author	Devi, R. K. Mrinalinee Bhakuni, S. S. Phukan, M. K. Duarah, R.
Copyright Year	2016
Abstract	Drainages display tectonic forcing of their channels on the frontal region of the Arunachal Himalaya due to structural control. Dikari, a transverse river flowing along the N–S trending western limb of the major Siang Antiform, exhibits structurally controlled nature of its drainage on its downstream flow towards south, through a network of NE–SW and NW–SE trending conjugate faults. The river shows compressed meandering as the regional structural trend of ENE–WSW seems to be reactivated by the transverse NW–SE trend of neotectonic fault activity. The Himalayan frontal thrust (HFT) tracing along the Himalaya mountain front has been displaced sinisterly for a distance of ~7 km by a WNW–ESE trending fault running along the Sileng stream. Development of parallel drainages in the southern part of the Sub-Himalaya is interpreted to have formed as a result of uplifting related to the above-mentioned strike-slip movement. Along the HFT zone, the frontal streams and rivers exhibit deflection of their channels from NE–SW to ENE–WSW directions. Channel of the transverse Siang river has been deflected for a length of 3 km along the NNE–SSW direction across the Himalayan frontal part. In this part of the Himalaya, previous workers did not give much emphasis on the role of Siang Antiform as far as neotectonic with respect to the tectonics related to the HFT is concerned. There is a syntectonic relationship between the active NE–SW-oriented compression direction and the tectonic forcing of the drainages including development of the tectonic geomorphology.
Starting Page	1
Ending Page	24
Page Count	24
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	75
Issue Number	5
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-02-24
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Arunachal Himalaya Siang Antiform Eastern syntaxial bend Himalayan frontal thrust Neotectonics Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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