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IJMS Vol.33(3) [September 2004] >


Title: Depositional environment and silting in the Sharavati estuary, central west coast of India
Authors: Hegde, V S
Kanchanagouri
Gosavi, D
Hanamgond, P T
Huchchannavar, G K
Shalini, G
Bhat, M S
Keywords: Estuary
Silting
Depositional environment
Texture
Sharavati river
Issue Date: Sep-2004
Publisher: CSIR
Abstract: Variation in textural characters (silt sand ratio, mean size, sorting and skeweness) of the Sharavati estuarine sediments has been studied to understand their depositional environment. Seventeen locations within the estuary and two locations just at the entrance of the sea were selected for the study. During September 2000, medium grained (1.36-1.86φ), well sorted to moderately well sorted sediments were observed in the estuary, whereas they were fine grained (2.67-3.φ) and poorly sorted in the entrance of the sea (0.84). The estuarine sediments were relatively fine-grained during December 2000 (postmonsoon) (1.3-2.18φ) and February 2001(premonsoon) (1.15-2.3φ) as compared to the monsoon season. The siltation in the estuary is mainly due to offshore source brought by tidal currents followed by mixing of saline and fresh water in the estuary.
Page(s): 296-302
ISSN: 0379-5136
Source: IJMS Vol.33(3) [September 2004]

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