NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.40 [2011] >
IJMS Vol.40(3) [June 2011] >


Title: Mudflats in lower middle estuary as a favorable location for concentration of metals, west coast of India
Authors: Siraswar, Ratnaprabha
Nayak, G. N.
Keywords: Madflats
Metal deposition
Manovi Estuary
Issue Date: Jun-2011
Publisher: NISCAIR-CSIR, India
Abstract: Present study was an attempt to understand hydrodynamic conditions and the main factors regulating the distribution of metals in mudflats in the recent past along Mandovi Estuary. Sediment cores of 20 cm length were collected from three mudflats viz. near the mouth, lower middle and upper middle regions representing monsoon season from Mandovi Estuary. Cores were sub sampled at every 2 cm interval and analyzed for sand, silt, clay, organic carbon and selected metals. Sand percentage is the highest in the mudflat situated near the mouth (Betim) and finer sediments are higher in the lower (Karyabhat) and upper (Ribander) middle regions of the estuary. Organic matter associated more with finer sediment fractions at Karyabhat and Ribander (2.19% to 2.37%) mudflat cores as compared to Betim (0.13%). The sediments of Betim fall in the class I to IV, whereas sediments of two cores collected from middle estuarine region fall largely in class III. Sediment samples were analyzed for selected metals. Fe is highest in Ribander mudflat as compared to other cores. Cr, Co, Cu and Pb distribution agrees largely with the pattern of Fe in all the cores. Distribution of Cu and Pb also agrees with that of Mn. Zn and Ni follow the pattern of Co agreeing Fe distribution pattern. Concentration of Fe and Mn along with Ni, Zn, Cr, Pb and Cu are higher in Karyabhat.
Page(s): 372-385
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Source:IJMS Vol.40(3) [June 2011]

Files in This Item:

File Description SizeFormat
IJMS 40(3) 372-385.pdf381.12 kBAdobe PDFView/Open
 Current Page Visits: 482 
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: 603229 since 06-Feb-2009  Last updated on 21-Oct-2014Webmaster: nopr@niscair.res.in