NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.38 [2009] >
IJMS Vol.38(4) [December 2009] >


Title: Textural characteristics of the surface sediments of a tropical mangrove Sundarban ecosystem India.
Authors: Ramanathan, AL.
Rajkumar, K.
Majumdar, Jayjit
Singh, Gurmeet
Behera, P.N.
Santra, S C
Chidambaram, S
Keywords: Sedimentology
Grain size
Mangroves
Sundarban
West Bengal
Issue Date: Dec-2009
Publisher: CSIR
Abstract: Surficial sediments of Sundarban Mangroves in West Bengal India have been studied for grain size spectrum and textural parameters namely phi mean, standard deviation, skewness and kurtosis. Grain size spectrum shows a marked variation in the upstream riverine stretch. Observed variation of energy conditions is controlled by the fluvial profile in the channel. Textural pattern is highly complex owing to the fluctuation in the physico-chemical conditions prevailing in the system. Textural analysis of very fine sand shows existence of comparatively low energy condition in the fluvial and mangrove creek zones. Linear Discriminant Function Analysis (LDF) of the samples indicates a shallow marine environment origin for all samples of the mangrove ecosystem. The riverine sediments also show a wide range of textural facies. They show a progressive enrichment of silty-sand in the downstream in the creeks. The CM diagram (C=one percentile in microns, M=Median in microns) of Sundarban suggests that sediment deposition takes place by (1) rolling (2) rolling and suspension and (3) graded suspension. The river and creeks sediments represent deposits are of uniform suspension.
Page(s): 397-403
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Source:IJMS Vol.38(4) [December 2009]

Files in This Item:

File Description SizeFormat
IJMS 38(4) 397-403.pdf364.32 kBAdobe PDFView/Open
 Current Page Visits: 612 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 558108 since 06-Feb-2009  Last updated on 15-Jul-2014Webmaster: nopr@niscair.res.in