Abstract
Thakuran River sediments are typically estuarine. Lithogenic constituents are dominant with about 85–90 % in bulk and biogenic components constitute the rest (10–15 %). Quartz, feldspars, mica, lithic fragments and some heavy minerals are the main terrigenous constituents. Secondary overgrowth of quartz with multiple rims of inclusions suggests their derivation from sedimentary rocks of different cycles of sedimentation. The heavy mineral assemblage in the sediments leads to the conclusion that the sediments have been derived from the acidic igneous rocks of the Himalayas in the north and the metamorphic rocks of the Precambrian shields of the west and north-west of Bengal Basin. The benthic foraminiferal assemblage indicates a shallow-water, moderate-to-low saline environment.
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References
Das GK (2015) Estuarine morphodynamics of the Sunderbans. Coastal research library, vol 11. Springer, Switzerland, 211p
Griffiths JC (1967) Scientific method in analysis of sediments. McGraw Hill Book Company, 508p
Jansen JHJ, Hensey AM (1981) Interglacial and Holocene sedimentation in the northern North Sea: an example of Femian deposite in the Tartan Field. Spl Publ Inst Asso Sediment 5:323–334
Pettijohn FJ (1984) Sedimentary rocks. 3rd edn. CBS Publishers & Distributors. India, 628p
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Das, G.K. (2017). Sediment Composition. In: Tidal Sedimentation of the Sunderban's Thakuran Basin. Springer, Cham. https://doi.org/10.1007/978-3-319-44191-7_4
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DOI: https://doi.org/10.1007/978-3-319-44191-7_4
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