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Heavy mineral distribution in the beaches of Nagapattinam District, Tamilnadu, India

DRS at CSIR-National Institute of Oceanography

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Title Heavy mineral distribution in the beaches of Nagapattinam District, Tamilnadu, India
 
Creator Angusamy, N.
Manickaraj, D.S.
Chandrasekaran, R.
Chandrasekar, N.
Loveson, V.J.
Gujar, A.R.
Rajamanickam, G.V.
 
Subject Beaches; Heavy minerals; Coasts; Geographical distribution; Geochemistry
 
Description Heavy mineral studies were undertaken systematically along the coastal region from Poompuhar to Nagoor, Tamil Nadu, India. Heavy mineral studies by different size grades show a similar trend of concentration from +70 to +200 mesh except +80 and +170 mesh size grades. After the tsunami, the modality is shifted to a slight coarser grade in all the beaches in such a way an enrichment of concentration is noticed in 50 mesh size grade also. In the Total heavy mineral by wt %, shows that post-tsunami samples Chinnankudi an upshoot of heavies to a tune of 93% in the Berm of Nagoor and HT of Chinnankudi. At Poompuhar, the distributions of heavy minerals are found to be different to other two stations. While Poompuhar establishes overall rise in the Wt % of heavy minerals during Post Tsunami like other stations, from Dec. 2003 to Dec. 2004 unlike other stations, it is not giving any higher percentage in LT and Berm samples. Chinnankudi maintains always a higher percentage in LT, HT and Berm too, except post tsunami conditions when compared to Nagoor. When the distribution of heavy minerals in LT, HT and Berm is considered station wise during the years 2003, 2004 and 2005. Poompuhar is seemed to behave different to others. The heavy mineral enrichment increases from North (Poompuhar) to the South (Nagoor) in the study area. The same may be attributed to the inner shelf gradient.
 
Date 2008-02-22T05:30:10Z
2008-02-22T05:30:10Z
2005
 
Type Conference Article
 
Identifier National Seminar on Development Planning of Coastal Placer Minerals (PLACER - 2005), eds. Loveson, V.J.; Chandrasekar, N.; Sinha, A. 80-92p.
http://drs.nio.org/drs/handle/2264/935
 
Language en
 
Rights Copyright [2005]. It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice by copyright holder that the rights are voilated then the item would be withdrawn.
 
Publisher Allied, India