Environmental geochemistry of core sediments from Serthalaikkadu creek,East coast of India |
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| Authors: | M Sundararajan Usha Natesan |
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| Institution: | (1) National Institute for Interdisciplinary science and Technology, Council of Scientific and Industrial Research, Industrial Estate (P.O), Pappanamcode, Trivandrum, 695019, India;(2) Centre for Environmental Studies, Anna University, Chennai, 600025, India |
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| Abstract: | The Serthalaikkadu creek in Muthupet mangroves region is the only E–W trending coastal strip in the SE coast of India and
it also acts as a barrier to natural disasters. Natural, anthropogenic signals and accumulation of elements were studied by
collecting sediments from two cores. Textural parameters were studied in detail and carbonates (CaCO3), organic carbon (OC), major (Si, Al, Fe, Na, K, Ca, Mg, P) and trace elements (Mn, Cr, Cu, Ni, Co, Pb, Zn) were determined.
Textural parameters, CaCO3, OC and Al-normalized pattern of elements indicate depositional events in core samples that can be directly related to natural
events during the last decade. The calculated enrichment, anthropogenic factors and comparison of data indicate that the observed
trace metals (especially Pb, Co) are enriched mainly due to the anthropogenic activities in the land as well as in the coastal
zone (Palk Strait). |
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