BASEMENT HETEROGENEITY AND SEDIMENT THICKNESS OF KARBIANGLONG ASSAM, PARTS OF NORTH EAST INDIA INFERENCE FROM GRAVITY-MAGNETIC DATA
Journal Title: IJAR-Indian Journal of Applied Research - Year 2017, Vol 7, Issue 12
Abstract
Karbi - Anglong forms the southern extremity of Mikir massif, represent an uplifted detached block of Shillong plateau, North East India comprising Precambrian Crystalline rocks of Gneissic complex and fluvial sediments of quaternary age. The gravity and magnetic surveys in the area brought out the subsurface structures and basement heterogeneity. The results of 2D subsurface modelling and the Spectral analysis of both Gravity-Magnetic data brought out the basement configuration and the overlying average sedimentary thickness ranging from 400m to 1000m and these depths are good agreement with Werner depth solutions obtained from gravity-magnetic data.
Authors and Affiliations
Ch. Ravi Kumar, Dr. Ramachandrappa, B. Pathak
Keywords
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