The Bengal Foredeep is one of the world's largest exogeosynclines. It runs parallel to the hinge zone of the Sub-Himalayan Foredeep. It is about 450 kilometers wide in southern Bangladesh, narrowing towards the northeast. Folded belts of the Burmese Alpide mobile belt mark its eastern boundary. It can be divided into further sub-zones: (1) the

Faridpur Trough Faridpur may refer to: Bangladesh * Faridpur, Bangladesh, a city and district headquarter in Faridpur District * Faridpur District, a district in Dhaka Division ** Faridpur Sadar Upazila, a subdistrict of Faridpur District, containing Faridpur C ...

; (2) the

Barisal High Barisal ( or ; bn, বরিশাল, ), officially known as Barishal, is a major city that lies on the banks of the Kirtankhola river in south-central Bangladesh. It is the largest city and the administrative headquarter of both Barisal Di ...

; (3) the

Hatiya Trough Hatiya may refer to: * Hatiya Upazila an administrative region in Bangladesh ** Hatiya Island, a part of Hatiya Upazila * Hatiya, Baglung, a village in Dhaulagiri Zone, Nepal * Hatiya, Sankhuwasabha, a village in Kosi Zone, Nepal * Hatiya, Makwanpu ...

; (4) the

Sylhet Trough Sylhet ( bn, সিলেট) is a metropolitan city in northeastern Bangladesh. It is the administrative seat of the Sylhet Division. Located on the north bank of the Surma River at the eastern tip of Bengal, Sylhet has a subtropical clima ...

; 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

References

Geography of Bangladesh {{Bangladesh-geo-stub