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Paleoenvironment of Deposition of the Dupi Tila formation, Lalmai Hills, Comilla, Bangladesh
The Dupi Tila Formation is composed of yellow to light brown medium to very fine moderately hard to loose sandstone, siltstone, silty clay, mudstone and shale with some conglomerates with clasts of petrified wood. The lithofacies of matrix supported conglomerate, trough cross bedded conglomerate, massive sandstone, trough cross bedded sandstone, planar cross bedded sandstone, ripple cross laminated sandstone-siltstone, flaser laminated sandstone-shale, lenticular laminated sandstone-siltstone-shale, parallel laminated sandstone-siltstone, wavy laminated shale, parallel laminated blue shale, and mudstone are delineated within this formation. Based on the grain size, sedimentary structures, water depth and genesis of individual facies, facies are grouped into three types of facies associations like (i) coarse-grained conglomerate facies association in relation to tractive current deposits of alluvial fan set up at the base of litho-succession (FAC), (ii) medium to fine-grained sandstone-siltstone-mudstone facies association or facies association in relation to strong tide (FAT) characterizing the middle part of litho-succession, (iii) very fine-grained sandstone-siltstone-mudstone facies association in relation to less frequent weak tide or heterolithic facies association (FAHL) characterizing upper part of litho-succession and shallow marine facies association (FASM) composing the uppermost litho-succession. Presence of gluconite indicates that the depositional environment was shallow to deep marine. The dominant paleoflow direction during the deposition of Dupi Tila Formation was toward southeast to southwestern direction. The rivers were of braided type at the piedmont alluvial depositional set up at the lower part, which later changed to estuarine-tidal flat type environmental set up in the middle part to upper part and paleo-environment was shallow marine in the uppermost part.
Paleoenvironment, Dupi Tila Formation, Lalmai Hills, Comilla, Bangladesh.
- ALLEN, J.R.L. (1970) Physical processes of sedimentation: An Introduction. London. Allen and Unwin, 248p.
- BAGATI, T.N. and KUMAR, R. (1994) Clay mineralogy of Middle Siwalik sequence in Mohand area, Dehra Dun: implication for climate and source area. In: R. Kumar, S.K. Ghosh and N.R. Phadtare (Eds.), Siwalik Foreland Basin of Himalaya. Himalayan Geol., v.15, pp.219-228.
- BAKR, M.A. (1977) Quaternary geomorphic evolution of the Brahmanbaria– Noakhali area, Comilla and Noakhali Districts, Bangladesh. Rec. Geol. Surv. Bangladesh, v.1(2), 44p.
- BLATT, H., MIDDLETON, G.V. and MURRAY, R.C. (1980) Origin of sedimentary rocks (2nd ed). Printice Hall, Englewood Cliffs, N.Y., 782p.
- BOERSMA, J.R. (1970) Distinguishing features of wave ripple crossstratification and morphology. Doctoral Thesis. University of Utrecht, 65p.
- BOGGS Jr., S. (2001) Principles of Sedimentology and Stratigraphy, 3rd Edition: New Jersey: Prentice Hall, 726p.
- CANT, D.J. and WALKER, R.G. (1976) Development of a braidedfluvial facies model for the Devorian Battery Point Sandstone, Quebec. Can. Jour. Earth Sci., v.13, pp.102-119.
- COLLINSON, J.D. and THOMPSON, D.B. (1982) Sedimentary Structures. George Allen and Unwin, London, 194p.
- DALRYMPLE, R.W., KNIGHT, R.J., ZAITLIN, B.A. and MIDDLETON, G.V. (1990) Dynamics and facies model of a macro- tidal sand-bar complex, Cubequid Bay- Salmon River estuary (Bay of Fundy). Sedimentology, v.37, pp.577-612.
- DALRYMPLE, R.W., ZAITLIN, B.A. and BOYD, R. (1992) Estuarine Facies Models: Conceptual Basis and Stratigraphic implications. Jour. Sedim. Petrol., v.62, pp.1130-1146.
- FOLK, R.L and WARD, W.C. (1957) Brazos river bar, a study in the significance of grain size parameters. Jour. Sediment. Petrol., v.27, pp. 3-27.
- HARMS, J.C., SOUTHWARD, J.B. and WALKER, R.S. (1982) Structures and sequences in clastic rocks. Lecture notes for short course No. 9, Soc. Econ. Paleont. Mineral.
- HASAN, MOHAMMOD, (1986) Stratigraphical and Sedimentological studies on Quaternary Deposits of the Lalmai Hills, Bangladesh. Unpublished D.Sc. Dissertation, VUB, Brussels.
- KHAN, A.A. (1991) Tectonics of the Bengal Basin. Jour. Himalayan Geol., v.2, pp.91-101.
- LAPIDO, K.O. (1988) Example of tidal current periodicities from an Upper Cretaceous Sandstone succession (Anambra Basin, SE Nigeria). In: P.L. de Boer et al. (Eds.), Tide-influenced sedimentary environments and facies: Dordrecht, D. Reidel, pp.333-340.
- MIALL, A.D. (1978) Lithofacies types and vertical profile models in braided river deposits: a summary In: A.D. Miall (Ed.), Fluvial Sedimentology. Can. Assoc. Petrol. Geol. Mem., v.5, pp.597-604.
- MIALL, A.D. (1986) Facies architecture in clastic basin In: New Perspectives in Basin Analysis by K. L. Kleinspehn and C. Paola, Verlag, New York, Berlin, Heidelberg, London, Paris, Tokyo.
- MIALL, A.D. (1990) Principle of Sedimentary Basin Analysis. 2nd ed., Springer, Berlin, Heidelberg,, N.Y., 688p.
- MILLER, D.J. and ERIKSSON, K.A. (1997) Late Mississippian Prodeltaic rhythmites in the Appalachian Basin: a hierarchical record of tidal and climatic periodicities. Jour. Sediment. Res., v.67, pp.653-660.
- MORGAN, J.P. and MCINTIRE, W.G (1959) Quaternary Geology of the Bangal Basin, East Pakistan and India. Bull. Geol. Soc. Amer., v. 70, pp.319-342.
- MURAKOSHI, N., NAKAYAMA, N. and MASUDA, F. (1995) Diurnal inequality pattern of the tide in the upper Pleistocene Paleo-Tokyo Bay: reconstruction from tidal deposits and growth-lines of fossil bivalves. In: B.W. Flemming and A. Barthoolma (Eds.), Tide signatures in Modern and Ancient Sediments. Spec. Publ. Inter. Assoc. Sediment., no.24, pp.289-300.
- PETTIJOHN F.J. (1984) Sedimentary Rocks (3rd edition), CBS Publishers and Distributors, Delhi, India, 628p.
- POSAMENTIER, H.W. and ALLEN, G.P. (1999) Siliciclastic Sequence Stratigraphy: Concept and Application. SEPM concepts in sedimentology and paleontology, 210p
- POTTER, P.E. and PETTIJOHN, F.J. (1977) Paleocurrent and Basin Analysis. (2nd Ed). Spinger- Verlag, Berlin, Heidelberg, New York 425p.
- READING, H.G. (1996) Sedimentary Environments and Facies: Processes, Facies and Stratigraphy, 3rd edition. Oxford, Blackwell Science Publ. Co., 688p.
- REINCEK, H.-E., SINGH, I.B. and WUNDERLICH, F. (1971) Einteilung der Rippen und anderer marine Sandkoper. Senckenber-giana marit., v.3, pp.93-101.
- REINECK, H.E. and SINGH, L.B. (1980) Depositional Sedimentary Environments, 2nd Edition, Springer-Verlag, Berlin, Hedidelberg, New York, 549p.
- ROY, M.K., KARMAKAR, B.C., SAHA, S. and CHANDHURI, S. (2004) Facies and Depositional Environment of the Dupitila Formation, Dupitila Hill Range, Jaintiapur, Sylhet, Bangladesh. Jour. Geol. Soc. of India, v.63, pp.139-157.
- RUST, B.R. (1978) Depositional models for braided alluvium. In: A.D. Miall (Ed.), Fluvial Sedimentology. Mem. Can. Soc. Petrol. Geol., v.5, pp.605-626.
- SHAMSUDDIN, A.H.M. and ABDULLAH, S.K.M. (1997) Geological evolution of the Bengal Basin and its implication to hydrocarbon exploration in Bangladesh. Indian Jour. Geol., v.69, pp.93-121.
- SINGH, B.P. and SINGH, H. (1995) Evidence of tidal influence in the Murree Group of rocks of the Jammu Himalaya, India. Spec. Publ. Internat. Assoc. Sedimemt., v.24, pp.343-351.
- STOW, D.A.V. (1986) Deep Clastic Seas. In: (Reading HG edn) Sedimentary Environment and Facies. (2nd edn). Backwell Scientific Publication, London, pp.399-443.
- TERWINDT, J.H.J. (1981) Origin and sequence of sedimentary of sedimentary structures in inshore mesotidal deposits of the North Sea. In: S.-D. Nio, R.T.E. Shuttenhelm and Tj, C.E. Van Wuring (Eds.), Holocene marine sedimentation in the North Sea Basin. Spec. Publ. No.5, Internat. Assoc. Sediment., pp.4-26.
- TESSIER, B. and GIGOT, P. (1989) A vertical record of different tidal cyclicities: an example from the Miocene Marine Molasse of Dighe (Hante Province, France). Sedimentology, v.36, pp.767-776.
- WALKER, R.G. (1984) Facies Models. Geoscience Canada Reprints series 1, Geol. Assoc. Can. Publ. 317p.
- WILLIAMS, H., TURNER, F.J. and GILBERT, C.M. (1985) Petrography: An Introduction to the Study of Rocks in Thin Sections. Second edition, CBS Publishers & Distributors, Delhi, India, 626p.
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