THE IMPACT OF SEASONAL CHANGES ON HEAVY MINERALS CONCENTRATION FROM A PART OF EAST COAST OF INDIA

Ali Mohammad and E.N. Dhanamjayarao
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Ali Mohammad: Research Scholar, Department of Geology, Andhra University, Visakhapatnam-530003.
E.N. Dhanamjayarao: Department of Geology, Andhra University, Visakhapatnam-530003, India.

Malaysian Journal of Geosciences (MJG), 2020, vol. 5, issue 1, 12-21

Abstract: Pre and post monsoonal changes in the environment have led to a noticeable variation in sediment characteristics, heavy mineral concentrations and their distribution. The current study aimed to find out the effect of seasonal fluctuations on the concentration of heavy minerals along the coast and the variations in sediment textures and distribution. The study has revealed the effect of seasons on the sediments supply and its distribution along coast in the study area. The total heavy minerals concentrations are more in post monsoon than in pre monsoon and the concentration also increases from south to north in parts of the study area because of seasonal circulation of currents from south to north along the shore. The micro textural study of the heavy mineral grains from different locations in the study area revealed the mechanical and chemical erosions on the grain surfaces.

Keywords: Seasonal Variations; Coastal Sediments; Texture characteristics; Heavy Minerals; Grain-Microtextures; Vishakhapatnam Coast. (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:zib:zbnmjg:v:5:y:2021:i:1:p:12-21

DOI: 10.26480/mjg.01.2021.12.21

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