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Reading source and processes with time from mangrove sedimentary environment of Vaitarna estuary, west coast of India

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Title Reading source and processes with time from mangrove sedimentary environment of Vaitarna estuary, west coast of India
 
Creator Volvoikar, Samida P.
Nayak, G. N.
 
Subject Sediment components
Metal distribution
Lithogenic source
Vaitarna estuary
 
Description 1069-1081
Two mangrove sediment cores collected from Vaitarna
estuary were studied for the distribution of sediment

components (sand, silt, clay and organic carbon), major
elements (iron, manganese and aluminium) and trace metals (copper, zinc,
cobalt, nickel and lead). Both the cores showed a gradual decrease in sand and
an increase in clay component from bottom to surface. This change in the type
of sediment deposited was attributed to the change in hydrodynamic energy
conditions resulting from both natural (decrease in rainfall) as well as
anthropogenic activities (construction of dams, freshwater diversion, etc.).
Metals were found to be strongly associated with sand, silt and clay, while
Fe-Mn oxyhydroxides and organic matter were found to play a minor role. They
also showed similarity in their distribution patterns, thus suggesting a common
lithogenic source. Enrichment of iron and zinc in core S5 and manganese,
copper, cobalt and lead in core S6 towards surface however suggested increase
in anthropogenic additions in recent years.
 
Date 2016-06-23T16:30:47Z
2016-06-23T16:30:47Z
2014-06
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/28977
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(6) [June 2014]