Page 57 - DGH_Annual_Report

India's Sedimentary Basins: Subsurface Insights 57

Source: DGH Internal Source: DGH Internal

Himalayan foreland basin is an east–west
trending elongate basin that extends from
Pakistan in the west to India in the east. The basin
came into existence at the close of Mesozoic
Era following the first India–Asia impingement,
resulting in the deposition of the initial foredeep
sediments in front of the rising Himalaya.

Hydrocarbon exploration in Himalayan Foothills
of erstwhile-named Punjab Basin was initiated in
1956 by M/s ONGC. Under geophysical campaign,
aeromagnetic surveys were conducted in 1957,
which was followed by seismic and gravity-
magnetic (GM) surveys in 1957-58. Major part of
the basin is covered by GM surveys. Such surveys
bring out clearly that northwest-southeast
Himalayan trend is the dominant lineament
in the basement. However, there is a strong
perception of northeast-southwest Aravalli trend
in the area lying between Kalka and Dehradun.

Poonch-Ravi sector, Doon Sector and Rishikesh-
Tanakpur sector call for conceptual analysis in
view of data gaps.

Source: DGH Internal