Pop-up Tectonics and evolution of Shillong

The Shillong Plateau know to be the most seismically active region in the north eastern regions of India. In fact, Shillong is the only the topography which has uplifted to the elevation of 2000 m in the fore-land of eastern Himalayas. Significant scientific investigations had been carried by several researchers to understand the ongoing tectonics. Researchers state that the region has evolved due to buckling of Indian plate by the excessive forces exerted from Eastern Himalayas, Indo-Burmese and Sumra-shield and led to the development of Tectono-Geomorphic

in the Indian plate in NER of India. Nevertheless, the most exciting part of the tectonics in the region is that the Shillong plateau is undergoing rotational movements. obviously, due to such rotational forces in the region has it has been structurally disturbed and due to such enormous tectonic forces in the region, multiple fractures developed in the region and one of the imperative fault is Oldham fault which has evolved in the due to the rotational forces. Pioneers in the field of tectonics and seismology like Prof.Dr. Roger bilham, Prof J.R.kayal and others state that the plateau is rotating clockwise at a differential velocity of 5 mm/yr. Moreover, the evolution of Dauki Fault in the Shillong plateau is the subject point of the question with the rotational forces acting in the region. Though significant research had been done in this region, we still couldn’t conclude the tectonic forces exhibited in this region As a researcher what do you think on this regional tectonics?

81 views

S.PREM KUMAR 

IIT KANPUR

ae2e5651b74a00d5d31b8c6453fa3ebb.png