Bengal Foredeep

The Bengal Foredeep is a one of the world's larsget exogeosyncline. [ [http://herkules.oulu.fi/isbn9514267117/html/x454.html Chapter 4. Study Area] , Tratigraphic evolution and geochemistry of the Neogene Surma Group, Surma Basin, Sylhet, Bangladesh; Oulu University Library] It runs parallel to the hinge zone of the Sub-Himalayan Foredeep. It is about 450 kilometers wide in southern Bangladesh, narrowing towards the north-east. Folded belts of the Burmese Alpide mobile belt marks its eastern boundary. It can be divided into further sub-zones - (1) the Faridpur Trough; (2) the Barisal High; (3) the Hatiya Trough; (4) the Sylhet Trough; and (5) the Madhupur High. [Eldridge M. Moores, Rhodes Whitmore Fairbridge; Eldridge M. Moores, Rhodes Whitmore Fairbridge; Encyclopedia of European and Asian Regional Geology; page 67; Champion & Hall]

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