Abstract

The area under study falls in Tripura, which in turn, is a part of the Assam-Arakan Fold Belt and geographically situated in the northeastern part of India. Area is traversed by long narrow anticlines and broad synclines in an almost N-S trend that swings north-eastward towards the northern margin. Seismic exploration in geologically complex areas and in rugged terrain has been a challenging task before explorationists. The 2D and 3D seismic data acquired till date with coarser spatial sampling is inadequate to map the meaningful reflections on top of anticlines in fold belt area.. This paper deals with a seismic campaign in Gojalia area in Tripura, which is part of a tectonically very complex Fold Belt system of Assam. A 2-D line with fine spatial sampling was shot across the Gojalia anticline on experimental basis along with regular 3D acquisition work The initial results from processing of the data (2D data of experimental line) acquired in the field have brought out the subsurface picture with greater clarity in comparison to the old data in the southern part of the study area.