Record Details

Depositional environment and elemental distribution with time in mudflats of dharamtar creek, west coast of India

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Depositional environment and elemental distribution with time in mudflats of dharamtar creek, west coast of India
 
Creator Pande, Anant
Nayak, G. N.
 
Subject Depositional environment
Metal distribution
Geoaccumulation index
Dharamtar creek
 
Description 360-369
Two sediment cores
collected from intertidal mudflats of Dharamtar creek, one near the mouth and
the other from the middle region of Amba
River were analyzed for
sediment components, organic carbon and selected metals (Al, Fe, Mn, Ni, Co,
Cr, Zn and Pb). The sediments are mainly composed of silt and clay contributing
greater than 90% in both the cores, indicating calm environment prevailed
during deposition of sediments. However, between the two cores, sediments in
the middle estuarine region were deposited in relatively violent hydrodynamic
environment compared to that near the mouth of the creek. Organic carbon
concentration was found to be slightly higher near the mouth. The distribution
of metals is largely controlled by sediment components, organic carbon and
Fe-Mn oxyhydroxides at both the locations. When the average values are
considered, Mn and Co shows higher concentration in the middle estuarine region
whereas, Fe along with Al shows higher concentrations near the mouth.
Enrichment factor calculated indicates minor enrichment of Mn, Fe and Zn and
moderately to moderately severe enrichment with respect to Ni, Co, Cr and Pb in
the creek. Index of geo-accumulation (Igeo) computed indicated that Dharamtar
creek is moderately polluted with respect to Pb and Co, unpolluted to
moderately polluted with Ni, Cr and Fe and practically unpolluted with Zn and
Mn.
 
Date 2013-07-12T10:03:31Z
2013-07-12T10:03:31Z
2013-06
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/19664
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.42(3) [June 2013]