Born in London to Edwin Pascoe and Mary A. Hall , he went to St John 's College , Cambridge and joined the Geological Survey of India in 1905 . His early study in India was on the Great Kangra earthquake of 4 April 1905 . He surveyed oil fields in Burma , Assam , Punjab , and on the Arabian Coast . He became the director of the GSI in 1921 and retired from it in 1932 . He also worked with the Indian Museum and presided over the Indian School of Mines . He was a specialist on the Tertiary formations of India and hypothesized that the northern rivers of India ( including the Brahmputra and the Ganges ) flowed as one stream ( the " Indobrahm " or the Shiwalik river of G.E. Pilgrim ) draining west into the Arabian Sea . He revised and published the third edition of the '' Manual of the Geology of India '' whose first edition had been by H.B. Medlicott and W.T. Blanford in 1879 with a second edition in 1893 by R.D. Oldham
Great Kangra earthquake
1905 Kangra earthquake
Edwin Pascoe