9/28/2023 0 Comments Himalayas plate boundary![]() Central Gap: between the 1905 Kangra and 1934 Bihar–Nepal earth-quakes, this has potential to cause three great earthquakes.Fig 1: The Earth in the Early Permian (290 million years ago) when India was part of Gondwana and bordered to the north by the Cimmerian Superterrane.Assam Gap: between the 1950 Assam and 1934 Bihar–Nepal earthquake ruptures, this has potential to cause at least three great earthquakes.Any large or longstanding gap in displacement is considered to be the fault segment most likely to suffer future earthquakes.A hypothesis suggests that over along period of time, the displacement on any segment must be equal to the displacement experienced by all the other parts of the fault.The rocks at the gap have not slipped from their position, compared with other segments along the same structure in a long time.A seismic gap a section of an active fault which has the potential to produce significant earthquake(s).It is a 2200km longthrust fault that continues along Himalaya mountain belt. The fault is exposed on the surface in a NW-SE direction as it slopes down to the north. The Main Central Thrust is a major faultwhich is formed where the Indian Plate has pushed under the Eurasian Plate along the Himalaya.The MBT is considered to be the thrust that transports older, Gondwana rocks from the north over the younger, Lower Siwalik rocks to the south.MBT has been described `unambiguously' as the southern limit of the Main Himalayan structural unitsin the Darjeeling Himalayas.It shows the faulted contact between the Siwalik and the older Murree /Dharamshala beds in the Himalayas of Jammu-Himachal Pradesh.Occurred during the Cainozoin period, the Main Boundary Thrust (MBT) is one of the major Himalayan thrusts, and it is presently incorporated within the Himalayan thrust wedge (Lesser and Outer Himalayas) displaced above the Indian lithosphere.As the root décollement, it is a splay branch of the Main Himalayan Thrust (MHT).The youngest and southernmost thrust structure in the Himalaya deformation front is Himalayan Frontal Thrust. The fault can be seen via satellite imagery because it is well expressed on the surface. ![]()
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