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Full-Text Articles in Physical Sciences and Mathematics
Analysis Of Gravity For The Crustal Structure Of Nepal Himalaya, Kapil Prasad Phuyal
Analysis Of Gravity For The Crustal Structure Of Nepal Himalaya, Kapil Prasad Phuyal
MSU Graduate Theses
Nepal Himalaya is situated in the central portion of the seismically active Himalayan Orogenic Belt, which is geologically segmented by four major mega fault structures: Main Frontal Thrust (MFT), Main Boundary Thrust (MBT), Main Central Thrust (MCT), and the South Tibetan Detachment System (STDS). The MFT, MBT, and MCT are part of the basal decollement Main Himalayan Thrust (MHT) which accommodates the convergence between the Indian and Eurasian Plate. The 2015 Gorkha Earthquake occurred within the MHT system, MHT system itself had been seismically locked since the 1934 Nepal-Bihar Earthquake, complicating the geometry depth of MHT. Available land and airborne …
Crustal Structure Of The Bhutanese Himalaya: New Insights From A Gravity Analysis In Western And Central Bhutan, Kinzang Duba
Crustal Structure Of The Bhutanese Himalaya: New Insights From A Gravity Analysis In Western And Central Bhutan, Kinzang Duba
MSU Graduate Theses
To expand the current understanding of lithospheric structure within Bhutan Himalaya, a detailed gravity survey was conducted for the first time along the all major roads within western and central Bhutan in 2015-2017. The acquired Bouguer gravity anomaly data were analyzed and interpreted using map methods (wavelength filtering and Euler deconvolution) which clearly indicate that there are substantial anomalies due to crustal density sources and a complex Himalayan geology. Four two-dimensional gravity models across the Himalayan tectonostratigraphic units were constructed to determine the crustal density structure using constraints from the geological and geophysical studies. The results support that the long …