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)



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