Acta Geodynamica et Geomaterialia

Title: DISTRIBUTION OF RARE EARTH ELEMENTS IN CORE SEDIMENTS OF KOLAKKUDI LAKE, SOUTHERN INDIA
Authors: Sivasamandy Radhakrishnan, Satyanarayanan Manavalan and Ramesh Rangasamy
DOI: 10.13168/AGG.2019.0040
Journal: Acta Geodynamica et Geomaterialia, Vol. 16, No. 4 (196), Prague 2019
Full Text: PDF file (2.3 MB)
Keywords: Kolakkudi Lake, rare earth elements, recent sediments, soils
Abstract: The lake Kolakkudi represents a small, isolated and fresh water lake situated in southern part of TamilNadu, India and it surrounded by fluvial placer deposits of garnet rich sands. In the study area to obtain information about rare earth elements (REEs) of core sediments and conceded sediment composition and distribution of rare earth elements as well as surrounding soil was investigated. The concentration of REEs in core sediments varies from 0.42 to 49.1 ppm. The higher REE content in the core sediments samples from various locations whichsignificance the plethora of clay and/or quartz with less significant effect caused by sedimentary sorting. According to the difference in the levelsof the rare earth elements, the rare earth elements normalized patterns and associated fractionation parameters (SLREE/SHREE, (La/Yb)N, and (NdYb) N) showed similarities between the lake sediments and the surrounding clays, confirming a widespread influence of nearby local lithology on the lake sediment composition. On the other hand, the results of the statistical analysis suggest the contribution of both clay rich soils and garnet rich sands in the lake sediments to the total content of rare earth elements.