Depositional environment of sediments along the southern coast of Tamil Nadu, India

Grain size studies of sediments from beaches in the region from Mandapam toKanyakumari, divided into 5 sectors, indicate that sediments are unimodal topolymodal in nature, coarse to fine grained, moderately to poorly sorted, andpositively-negatively skewed in character. The inference to be drawn fro...

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Main Authors: Nimalanathan Angusamy, G. Victor Rajamanickam
Format: Article
Language:English
Published: Elsevier 2006-03-01
Series:Oceanologia
Subjects:
Online Access:http://www.iopan.gda.pl/oceanologia/48_1.html#A6
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author Nimalanathan Angusamy
G. Victor Rajamanickam
author_facet Nimalanathan Angusamy
G. Victor Rajamanickam
author_sort Nimalanathan Angusamy
collection DOAJ
description Grain size studies of sediments from beaches in the region from Mandapam toKanyakumari, divided into 5 sectors, indicate that sediments are unimodal topolymodal in nature, coarse to fine grained, moderately to poorly sorted, andpositively-negatively skewed in character. The inference to be drawn fromthese studies is that the variation in sedimentological parameters is governedby fluvial input, wave dynamics, and littoral transport of the sediments.Bivariant plots show that the Mandapam and Kanyakumari sectors can beclassified as beach environments, whereas the Tuticorin and Valinokkam sectorscome under the influence of riverine environmentsand the dune environment in the Manappad sector. The CM pattern of all five sectors showsa clustered distribution of sediments in the PQ and QR segments, indicating agraded mode of deposition. Visher diagrams depict a wave shadow environmentfor the Mandapam sector, whereas the Valinokkam, Tuticorin and Manappadsectors show double saltation populations characteristic of beaches, and theKanyakumari sector is characterized by a more truncated populationcharacteristic of a plunge zone, which is a high-energy environment.
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spelling doaj.art-9aa31bfd0a6347cd92cf2647e169c72d2022-12-22T02:32:36ZengElsevierOceanologia0078-32342006-03-0148187102Depositional environment of sediments along the southern coast of Tamil Nadu, IndiaNimalanathan AngusamyG. Victor RajamanickamGrain size studies of sediments from beaches in the region from Mandapam toKanyakumari, divided into 5 sectors, indicate that sediments are unimodal topolymodal in nature, coarse to fine grained, moderately to poorly sorted, andpositively-negatively skewed in character. The inference to be drawn fromthese studies is that the variation in sedimentological parameters is governedby fluvial input, wave dynamics, and littoral transport of the sediments.Bivariant plots show that the Mandapam and Kanyakumari sectors can beclassified as beach environments, whereas the Tuticorin and Valinokkam sectorscome under the influence of riverine environmentsand the dune environment in the Manappad sector. The CM pattern of all five sectors showsa clustered distribution of sediments in the PQ and QR segments, indicating agraded mode of deposition. Visher diagrams depict a wave shadow environmentfor the Mandapam sector, whereas the Valinokkam, Tuticorin and Manappadsectors show double saltation populations characteristic of beaches, and theKanyakumari sector is characterized by a more truncated populationcharacteristic of a plunge zone, which is a high-energy environment.http://www.iopan.gda.pl/oceanologia/48_1.html#A6Grain sizeBeach sedimentsDepositional environmentIndia
spellingShingle Nimalanathan Angusamy
G. Victor Rajamanickam
Depositional environment of sediments along the southern coast of Tamil Nadu, India
Oceanologia
Grain size
Beach sediments
Depositional environment
India
title Depositional environment of sediments along the southern coast of Tamil Nadu, India
title_full Depositional environment of sediments along the southern coast of Tamil Nadu, India
title_fullStr Depositional environment of sediments along the southern coast of Tamil Nadu, India
title_full_unstemmed Depositional environment of sediments along the southern coast of Tamil Nadu, India
title_short Depositional environment of sediments along the southern coast of Tamil Nadu, India
title_sort depositional environment of sediments along the southern coast of tamil nadu india
topic Grain size
Beach sediments
Depositional environment
India
url http://www.iopan.gda.pl/oceanologia/48_1.html#A6
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