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By lithologic criteria, the Main Central Thrust is defined as the boundary between quartzite and phyllite, from the Lesser Himalayan Sequence; and the orthogneiss biotite-rich schist, which belongs to the Greater Himalayan Crystalline complex. [2] [3] By metamorphic isograd, the Main Central Thrust follows the kyanite isograd. Under this ...
The three main rock units: the LHS, GHC, and THS all have a hotly debated relationship with each other involving two main fault lines. One is the Main Central Thrust (MCT), and the other is the South Tibetan Detachment (STD). Tectonics geologists agree that the GHC, between the LHS and the THS, is between these two faults and is somehow being ...
HHCS: High Himalayan Cristalline Sequence; ISZ: Indus Suture Zone; KW: Kishtwar Window; LKRW: Larji-Kulu-Rampur Window; MBT: Main Boundary Thrust; MCT: Main Central Thrust; SF: Sarchu Fault; ZSZ: Zanskar Shear Zone. Fig 7: Simplified cross-section of the north-western Himalaya showing the main tectonic units and structural elements by Dèzes ...
The Lesser Himalayan Zone has a lower relief and elevation of the mountains compared to Greater Himalaya. The Lesser Himalaya Sequence (LHS) is bounded by two main thrusts: the Main Central Thrust (MCT) in the north and the Main Boundary Thrust (MBT) in the south. [2] Geographic locations of major formations discussed.
The pattern of the South Asian monsoon system correlates with Himalayan lithospheric processes through time including exhumation rates and thrusting activity along the Main Central Thrust of the Himalaya. Thrust migration occurred in response to a reduction in precipitation over the Himalaya to maintain critical taper of the mountain system. [32]
The Puente Hills thrust fault system is in a broad zone directly underneath the densest parts of the L.A. area, including downtown Los Angeles, which has many old and unretrofitted buildings, as ...
At the middle part of the thrust wedge, the Lesser Himalayan Sequence started to develop thrust horses and antiformal stacks at depth since 5.4Ma. [13] Out of sequence faulting — The Munsiari thrust as the out-of-sequence thrust was developed recently from the Himalayan sole thrust. [14] It truncated the Main Central thrust in this area. [13]
The northernmost boundary of the Siwaliks Group is marked by the Main Boundary Thrust (MBT), over which the low-grade metasedimentary rocks of the Lesser Himalaya overlie. The Lesser Himalaya also called the Lower Himalaya, or the Midlands, is a thick (about 7 km) section of para-autochthonous crystalline rocks made up of low- to medium-grade ...