South Tibet
The main problem that the South Tibet detachment is expected to help resolve is the method of emplacement of the GHC between the LHS and THS within the Himalaya. There are three models that help explain this emplacement: wedge extrusion, channel flow, and tectonic wedging. The wedge extrusion and channel flow models work under the assumption that the STD is a low angle normal fault, while the tectonic wedge model works as if the STD is a thrust fault.