岡山大学 地球科学研究報告
Published by Okayama University Earth Science Reports Editorial Committee

A Review on the Quaternary Characteristics of Pleistocene Tracts of Bangladesh

Towhida Rashid
Md. hossain Monsur
Abstract
With regards to the origin and evolution of the Pleistocene tracts (Lalmai, Madhupur and Barind tracts) of Bangladesh, two trends of thoughts are common. Most of the authors believed that the Madhupur, Barind and Lalmai tracts represent tectonically uplifted surface. Some researchers have different opinion and they believed that the Lalmai hills and the Madhupur locality represent tectonically uplifted blocks but the whole Barind tract and the major portion of the Madhuput tracts are not tectonically uplifted, rather these are originated by erossional-depositional processes. In order to solve the problems associated with origin and evolution of Pleistocene tracts of Bangladesh, further study is needed. Borehole data may be collected and fusion images can be prepared from aerial photographs and setellite images to detect netectonic imprins and geomorphological signatures of the areas. Elaborate laboratory analysis of sediment deposits, radiocarbon dating my indicate a new dimension about the origin and evolution of these tracts.
Keywords
Bangladesh
Lalmai Hill
Barind Tract
Madhupur Tract
Neotectonices
Aerial photographs
Satellite Image
Fusion Image
ISSN
1340-7414
NCID
AN10506284
NAID