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Neotectonic and climatic impressions in the zone of Trans Himadri Fault (THF), Kumaun Tethys Himalaya, India : A case study from palaeolake deposits

Auteur(s) et Affiliation(s)

KOTLIA, B.S.
Centre of Advanced Study in Geology, Kumaun Univ., Nainital, Inde
JOSHI, L.M.
Centre of Advanced Study in Geology, Kumaun Univ., Nainital, Inde


Description :
Late Quaternary tectonic activity on a NW-SE trending fault within the Trans Himadri Fault (THF) zone in lower reaches of the Milam glacier (Indian Tethys Himalaya) resulted in development of a lake around 23 ka BP. The remnants of the ancient lake are preserved in form of a thick lacustrine profile, consisting of muds and sands. The palaeolake seems to have breached around 11 ka BP possibly due to revival of a further event of neotectonic activity. The geomorphic consequences of the tectonic movements in the fault zone are manifest in form of palaeo-landslide cones, unpaired terraces, fault facets, soaring waterfalls, deep gorges and slope failures etc. The soft sedimentary structures, e.g., micro-faulting and flame structures in the exposed profile also point to a possible reactivation of the THF in the Late Pleistocene. The AA. present the first palynological results and the climatic conditions that this area experienced.


Type de document :
Article de périodique

Source :
Zeitschrift für Geomorphologie, issn : 0372-8854, 2013, vol. 57, n°. 3, p. 289-303, nombre de pages : 15, Références bibliographiques : 3 p.

Date :
2013

Editeur :
Pays édition : Allemagne, Stuttgart, Gebruder Borntraeger

Langue :
Anglais
Droits :
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