Clay Minerals of the Sarada-Varaha Estuary, East Coast of India

Authors

  • G.V.S Sarma
  • P. Satyakumar
  • K.U.M Varma
  • E.N.D. Rao
  • M. Subba Rao

Keywords:

Estuarine circulation, sediments, seasonal variability

Abstract

Seasonal variability of clay mineral suites has been investigated in the Sarada-Varaha estuary, east coast of India. Montmorillonite, illite, and kaolinite occur in significant amounts. Chloride which is present in the adjacent continental shelf sediments is conspicuous by its absence in the estuarine sediments. Montmorillonite shows a general downstream decrease in December when the estuary is in a partially mixed state and an upstream decrease in April associated with a negative state estuary. Illite and kaolinite, in general, register inverse trends correspondingly. The temporal and spatial trends of clay minerals are related to the estuarine and tidal circulation, which form the dominant sediment distribution processes in December and April, respectively.


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Published

1993-10-10

Issue

Vol. 9 No. 4 (1993): Journal of Coastal Research

Section

Articles

License

Authorization for personal use is granted by the Coastal Education and Research Foundation [CERF]. By submitting a manuscript, the authors agree that the copyright for their article is transferred to the publisher if the article is accepted for publication. Assignment of copyright is not required, however, from authors who work for organizations which do not permit such assignment, The copyright covers the exclusive rights to reprduce and distribute the article, inclduing reprints, photographic reproductions, microform, or any other reproductions of a similar nature, and translations.