Abstract
The study presents the textural characteristics of late Quaternary red sediments of Bhimunipatnam to understand the process of formation of these sediments. The red sediments are classified into (a) yellow sediments (b) reddish brown sediments (c) brick red sediments and (d) light yellow sediments sequence in the vertical litho section. The yellow sediments, rests on the khondalite basement, comprises of medium grained, moderate to poorly sorted and positively skewed. The rounded pebble beds with trough cross bedding indicate high energy turbulent conditions of deposition. The fining upward sequences indicate sediments were deposited under decreasing energy conditions under fluvial regime.The iron bearing minerals like garnets and pyriboles have undergone chemical weathering under high oxidizing environment resulting in addition of silt and clay to the reddish brown and brick red sediments and concretions were formed by carbonate precipitation. These processes caused changes in the mean grain size and sorting nature of these sediments which are originally aeolian in origin. The light yellow sediments were medium to fine grained, well sorted and similar to modern dune sands in terms of textural parameters. These sediments were deposited under low oxidation environmental conditions and acquired yellow colour due to Fe hydroxides.
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References
Baruah, J., Kotoky, P. and Sarma, J. (1997) Textural and Geochemical study on River sediments: A case study on the Jhanji River, Assam. Jour. Indian Assoc. Sed., v.16, pp.195–206.
Dinesh, A.C. (2009) G-Stat-A software for grain size statistical analyses, CM Diagrams and Sediment Trend Maps Abstract volume: International Seminar on Prospects of Marine sediments as Resource Base for the Man Kind. v.1, pp.5–7, October, 2009, Department of Geology, Andhra University, Visakhapatnam.
Durga Prasada Rao, N.V.N. and Srihari, Y. (1980) Clay mineralogy of the Late Pleistocene sediments of Visakhapatnam region, East coast of India. Sediment. Geol., v.27, pp.213–227.
Folk, R.L. (1968) Petrology of sedimentary Rocks, Hemphills, Austin, Texas., pp.170.
Friedman G.M. (1962) On sorting, co-efficients and the log normality of the grain size distribution in sandstones, Jour. Geol., v.70, pp.737–753.
King. (1886) The Geological sketch of Visakhapatnam district. Rec. Geol. Surv. India, v.19, pp.143–156.
Krumbein, W.C. and Pettijohn, F.J. (1938) Manual of Sedimentary Petrology. Appleton–Century–Crofts, Inc., New York, pp.546.
Madabhushi, S. (2003) Bhimunipatnam Red Sands Aeolian or Fluvial? Jour. Indian Assoc. Sediment., v.22, pp.203–212.
Mahadevan, C. and Sathapathi, N. (1949) Origin of Waltiar Highlands. Indian Geogr. Jour., v.1, pp.24–26.
Martin, L.R. (2003) Recent Sediments and Grain–Size Analysis. Gravel., v.1, pp.90–105.
Murali Krishna K.N., Reddy, K.S.N., Ravi Sekhar, Ch., Bangaku Naidu, K., Ganapathi Rao, P. and Reddy, G.V. R. (2016) Heavy Mineral Studies on Late Quaternary Red Sediments of Bhimunipatnam, Andhra Pradesh, East coast of India. Jour. Geol. Soc. India. Jour. Geol. Soc. India, v.88, pp.637–647.
Nageswara Rao, K., Udaya Bhaskara Rao, Ch. and Venkateswara Rao, K. (2008) Estimation of Sediment volume through Geophysical and GIS analysis-A case study of the red sand deposit along Visakhapatnam Coast. Jour. Indian Geophys. Union, v.12, pp.23–30.
Prudhvi Raju, K.N. and Vaidyanadhan, R. (1978) Geomorphology of Visakhapatnam, Andhra Pradesh. Jour. Geol. Soc. India, v.19, pp.26–34.
Prudhvi Raju, K.N., Mahalakshmi, K.B., Prasada Raju, P.V.S., Krishna Bhagavan, S.V.B. and David Emmanuel, B. (1985) Geomorphic Processes in the formation of (Red) sands of Bhimunipatnam, Visakhapatnam district, Andhra Pradesh. Jour. Geol. Soc. India, v.26, pp.336–344.
Raman, C.V., and Rao, A.T. (1980) Textural Analysis of Red sediments from Visakhapatnam district, Andhra Pradesh. Jour. Geol. Soc. India, v.21, pp.48–53.
Ramanathan, A.L., Rajkumar, K., Majundhar, J., Singh, G., Behera, P.N., Santra, S.C. And Chidambaram, S. (2009) Textural characteristics of the surface sediments of a tropical mangrove Sundarban ecosystem India. Indian Jour. Mar. Sci., v.38, pp.397–403.
Rao, A.T. (1978) Red sediments from Visakhapatnam, Andhra Pradesh. Jour. Geol. Soc. Ind., v.19, pp.79–82.
Rao, A.T., Rao, P.N., Varma, D.D. and Rao, K.P. (1993) Coastal sediments along Visakhapatnam–Bhimunipatnam region, Andhra Pradesh. Jour. Indian Assoc. Sediment., v.12, pp.1–9.
Ray, A.K., Tripathy, S.C., Patra, S. and Sarma, V.V. (2006) Assessment of Godavari Estuarine mangrove ecosystem through trace metal studies. Environ. Internat., v.32, pp.219–223.
Srihari, Y. (1980) Origin of Visakhapatnam red sediments, East coast of India Unpublished Ph.D thesis, Andhra University, Waltair, pp.152.
Vishnuvardhana Rao, M. and Durga Prasada Rao, N.V.N. (1968) A note on the origin of waltair highlands. Curr. Sci., v.37, pp.438–439.
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Murali Krishna, K.N., Reddy, K.S.N., Ravi Sekhar, C. et al. Textural studies on red sediments of Bhimunipatnam, Andhra Pradesh, east coast of India. J Geol Soc India 90, 111–117 (2017). https://doi.org/10.1007/s12594-017-0670-3
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DOI: https://doi.org/10.1007/s12594-017-0670-3