Abstract
Granulometric studies of sediment samples from different geomorphic units (e.g. mid-channel bars or flood-tidal delta, river mouth bars or ebb-tidal deltas, point bars, swash platforms, wash-over flats and riverbanks (levee) of the Thakuran basin have revealed the prevailing hydrodynamic condition at the time of their deposition. A coarsening of graphic mean size (MZ), betterment of sorting (σ1) and negative to positive skewness (SK1) have been noticed, progressively from the seaward point and in the landward direction. Variations of these textural parameters are related to decreasing energy levels in the same direction. A bipartite-granulometric model of sedimentation, which has a sand-to-mud transition from the seaward point of the tidal creek and in the landward direction, has been discerned. This is in contrast to a tripartite-granulometric model typical of estuaries.
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Das, G.K. (2017). Sediment Texture. In: Tidal Sedimentation of the Sunderban's Thakuran Basin. Springer, Cham. https://doi.org/10.1007/978-3-319-44191-7_6
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DOI: https://doi.org/10.1007/978-3-319-44191-7_6
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