Seasonal Variations in Sedimentological Characteristics of Uppanar River Estuary, South East Coast of India

Abstract

<div><p><em>The estuaine environment are dynamic and they are the intermediate zone between the marine and fresh water regions. This makes the estuarine region more dynamic in physical and chemical characteristic. These regions serves as a passage for the continental materials reach the marine environment. Because of the influence of fresh water and marine water this regions the depositional systems are dynamic and complex in nature. Despite the complexity of the of the environment, the textural analsysis and interpretation of the same provides insight into the prevailing deposition environment. The present study are carried out in the Uppar Estuary which joins with Bay of Bengal on the east coast of India. The Sedimentological analysis indicates that sediments most of the locations the sediments are very poorly to well sorted with mean size ranging from 1.03 to 5.97φ. The skewness value ranged from -0.09 to 0.48. The kurtosis varies form 0.94 to 1.54 The seasonal variations within the station are conspicuous. This indicates the sediment distribution pattern in controlled by the marine as well monsoon rainfall in this region.</em></p></div>