alexa Spatial Distribution of Grain Size Characteristics and
ISSN: 2157-7617

Journal of Earth Science & Climatic Change
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Research Article

Spatial Distribution of Grain Size Characteristics and its Role in Interpreting the Sedimentary Depositional Environment, Kodaikanal Lake, Tamil Nadu, India

Balamurugan P, Vasudevan S*, Selvaganapathi R and Nishikanth CV
Department of Earth sciences, Annamalai University, Annamalai Nagar, Tamil Nadu, India
Corresponding Author : Vasudevan S
Department of Earth sciences
Annamalai University, Annamalai Nagar
Tamil Nadu, India
Tel: +91 9443622798
E-mail: [email protected]
Received May 20, 2014; Accepted August 21, 2014; Published September 05, 2014
Citation: Balamurugan P, Vasudevan S, Selvaganapathi R, Nishikanth CV (2014) Spatial Distribution of Grain Size Characteristics and its Role in Interpreting the Sedimentary Depositional Environment, Kodaikanal Lake, Tamil Nadu, India. J Earth Sci Clim Change 5:217 doi: 10.4172/2157-7617.1000217
Copyright: © 2014 Balamurugan P, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
 

Abstract

The surface sediments of Kodaikanal Lake is situated in the palani hills at an altitude of 2,285 m above sea level, the geo co-ordinates of the lake are lies between 10°14’ N latitude and 77°28’ E longitudes. In the present study determination of grain size and its deposition environment were carried out for surface sediments collected from different parts of the Lake. The study permits to infer the changes in the depositional environment during the period of infilling at the sites. The spatial distribution of Mean size of the sediments varies from medium sand to medium silt, moderately well sorted to very poorly sorted characteristics, near- symmetrical to very fine-skewed type, and falling in platykurtic to very leptokutic nature. United State Department of Agriculture (USDA) textural triangle plot expresses sediments are clustered tightly in silty sand variable, and its type ranges falls within the field of Loamy sand, sand, sandy loam and silty loam fractions. Thus, the Lake sediments are dominance of silt and sand fractions. Multivariant statistics (discriminant analysis) express that the plots fall scattered in Turbidite and Aeolian environment. The Bivariate textural plot falls in Quiet water environment. The polymodel nature of the sediments also implies that transportation by rolling, sliding, saltation and suspension processes in the Kodaikanal Lake.

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