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Eohimalayan fold and thrust belt: Implications for the geodynamic evolution of the NW‐Himalaya (India)
Author(s) -
Wiesmayr Gerhard,
Grasemann Bernhard
Publication year - 2002
Publication title -
tectonics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.465
H-Index - 134
eISSN - 1944-9194
pISSN - 0278-7407
DOI - 10.1029/2002tc001363
Subject(s) - geology , thrust , fold and thrust belt , traverse , fold (higher order function) , paleontology , seismology , thrust fault , fault (geology) , tectonics , foreland basin , geodesy , mechanical engineering , physics , engineering , thermodynamics
In the Himalayas the Eocene deformation phase is called the Eohimalayan event. By means of a forward and backward balanced cross section along a classical traverse through the Tethyan Himalaya we constrain Eohimalayan SW vergent folding and SW directed thrusting in a belt above a basal thrust at 10 km depth. This thrust is located at the structural position of the Southern Tibetan Detachment System with a NE directed normal sense displacement suggesting Miocene reactivation of a major Eocene contractional fault. Stepwise palinspastic restoration demonstrates that this Eocene contractional fault has been subsequently openly folded due to southwestward propagation of the Himalayan Thrust System.