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Soil-Landform Development of Fold Belt Along East Coast of Bangladesh: Role of sea level fluctuations, palaeoclimatic changes and neotectonic activities in development of soils and landforms - Couverture souple

Khan, Md. Sharif Hossain; Parkash, B.; Kumar, Sudhir

 
9783845424460: Soil-Landform Development of Fold Belt Along East Coast of Bangladesh: Role of sea level fluctuations, palaeoclimatic changes and neotectonic activities in development of soils and landforms
Couverture souple
ISBN 10 : 384542446X ISBN 13 : 9783845424460
Editeur : LAP LAMBERT Academic Publishing, 2011

Synopsis

The Jaldi and Maiskhali structures include a part of coastal region of north-south trending Fold Belt of Bangladesh, offers an excellent site for studies of soil-geomorphic relationships of undulating coastal regions. Based on the degree of soil development and luminescence dating of soils eight soil-geomorphic units have been delineated in the area and a four member (I – IV) Morphostratigraphic sequence for the study area has been prepared with Member IV being the oldest. Sea level fluctuated several times with some stillstands during the late Quaternary Period. Eustatic stillstands may have affected the palaeodrainage in the study area, made streams to migrate laterally and to form fluvial terraces of the Mainland Higher Hillocks and Lower Hillocks (Jaldi anticline); and Island Hillock terrace, Piedmont zone and Old Tidal Flats (Maiskhali island). The tentative base level uplift rate from ages of and heights of terraces / surfaces for the present area has been estimated. The Late Quaternary Period in the area was marked by two major phases of palaeoclimate: (a) a subhumid to semiarid phase (40 ka to about 16 ka) and (b) a hot humid to subhumid phase (16 ka to present).

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

The Jaldi and Maiskhali structures include a part of coastal region of north-south trending Fold Belt of Bangladesh, offers an excellent site for studies of soil-geomorphic relationships of undulating coastal regions. Based on the degree of soil development and luminescence dating of soils eight soil-geomorphic units have been delineated in the area and a four member (I – IV) Morphostratigraphic sequence for the study area has been prepared with Member IV being the oldest. Sea level fluctuated several times with some stillstands during the late Quaternary Period. Eustatic stillstands may have affected the palaeodrainage in the study area, made streams to migrate laterally and to form fluvial terraces of the Mainland Higher Hillocks and Lower Hillocks (Jaldi anticline); and Island Hillock terrace, Piedmont zone and Old Tidal Flats (Maiskhali island). The tentative base level uplift rate from ages of and heights of terraces / surfaces for the present area has been estimated. The Late Quaternary Period in the area was marked by two major phases of palaeoclimate: (a) a subhumid to semiarid phase (40 ka to about 16 ka) and (b) a hot humid to subhumid phase (16 ka to present).

Biographie de l'auteur

Prof. Dr. Md. Sharif Hossain Khan did his graduation from the Department of Geology, University of Dhaka, Bangladesh and PhD from the Department of Earth Sciences, Indian Institute of Technology Roorkee (IITR), India. Dr. Khan is working as a Faculty member at the Department of Geological Sciences, Jahangirnagar University, Bangladesh since 1991.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2011
Langue
anglais
ISBN 10 
384542446X
ISBN 13 
9783845424460
Reliure
Broché
Nombre de pages
204
Coordonnées du fabricant
non disponible
Personne responsable
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