Abstract
Lithostratigraphy (including leucogranites) is described along with structural features. The nature and age of the intrusive granite are discussed. The South Tibetan Detachment System (STDS) has a complicated history of fault reactivations. It initiated as a normal fault during pre-Himalayan rifting and reactivated as thrust during early phase of Himalayan orogeny. Sheath folds in the hanging wall have formed during thrusting. During the late stages of deformation, it showed normal faulting. Two trends of normal faults, parallel and transverse to the Himalayan trend, and their origin are discussed. Some of the normal faults are a result of gravity gliding. Formation of transverse extensional faults (e.g. Leopargial Horst) in a predominant compressional regime is explained. The latest displacement along the STDS is that of right lateral slip. Evidence for the reactivations are discussed.
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Dubey, A.K. (2014). The Tethys Himalaya. In: Understanding an Orogenic Belt. Springer Geology. Springer, Cham. https://doi.org/10.1007/978-3-319-05588-6_13
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