Microtextures on quartz grains in the Estuary sediments of Gurupura River, Dakshina Kannada district, Karnataka State, West coast, India.

Authors

  • Darshan, M. S., Department of Marine Geology, Mangalore University. 574199
  • Ms Shivanna Department of Marine Geology, Mangalore University. 574199
  • sidduk rajuk mysore university
  • P. Madesh Department of studies in Earth Science. University of Mysore.570006

DOI:

https://doi.org/10.51710/jias.v39iII.238

Abstract

The present study focuses on the surface textures of the quartz grains derived from the granitic rocks in a fluvial regime on the west coast of India. The surface microtextures formed during transport due to their stable physical and chemical properties. The surface textures include information about source rock types, transporting force, sedimentary environment and evolution history of the sediment. For this purpose, eight samples were collected and investigated from the Gurupura River estuary of Dakshina Kannada District of Karnataka state west coast in India. The quartz grains show distinct surface textures with unique mechanical, chemical and morphological features. The mechanical features such as conchoidal fractures with arcuate steps indicate that the sand grains were derived from crystalline source rock (i.e., granite) and transported in a high-energy condition. The silica globule, overgrowth, and precipitation marks on the grain surfaces suggest action of chemical processes in a saturated silica environment, which is evident in the upper reaches of the Gurupura River. Surface textures of the quartz grains along the lower reaches of the Gurupura River display an array of mechanical features like a conchoidal fracture, V-shaped marks and impact pits, indicating the impact of mechanical processes. The overall pattern of the surface textures present on the quartz grains suggests moderate to high energy conditions in the Gurupura River.

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References

Armstrong-Altrin JS, Natalhy-Pineda O (2013) Microtextures of detritals and grains from the Tecolutla, Nautla, and Veracruz beaches,Western Gulf of Mexico. Mexico: implications for depositional environment and paleoclimate. Arabian Journal Geosciences. doi:10.1007/s12517-013-1088-x

Armstrong-Altrin J. S., Natalhy-Pineda O., 2014. Microtextures of detrital sand grains from the Tecolutla, Nautla, and Veracruz beaches, Western Gulf of Mexico. Mexico: implications for depositional environment and paleoclimate. Arabian Journal Geosciences 7, p. 4321M333

Chakroun A., Miskovsky J. C., Zaghbib-Turki D., 2009. Quartz grain surface features in environmental determination of Aeolian Quaternary deposits in northeastern Tunisia.Mineralogical Magazine 73 (4), p. 607-614.

Geological Survey of India, 1981. Geological and mineral map of Karnataka and Goa. Scale 1:5, 00,000

Helland, P.E., Holmes, M.A., 1997, Surface textural analysis of quartz sand grains from ODP Site 918 off the southeast coast of Greenland suggests glaciation of southern Greenland at 11 Ma: Palaeogeography, Palaeoclimatology, Palaeoecology, 135, 109-121.

Higgs, R., 1979, Quartz grain surface features of Mesozoic- Cenozoic sands from the Labrador and Western Greenland continental margins: Journal of Sedimentary Petrology, 49, 599-610.

Krinsley, D.H., Doornkamp, J.C., 1973, Atlas of quartz sand surface textures: Cambridge, England, Cambridge University Press, 91 p.

Krinsley, D.H. and Marshall, j.r. 1987. Sand grain textural analysis: an assessment. Clastic Particles. SEM and Shape Analysis of sedimentary and volcanic clasts (J.R. Marshall, editor). Van Nostrand-Reinhold, NewYork: 2-9.

Madhavaraju, J., Lee, YI., Armstrong-Altrin, J.S., Hussain, S.M., 2006, Microtextures on detrital quartz grains of upper Maastrichtian-Danian rocks of the Cauvery Basin, Southeastern India: implications for provenance and depositional environments: Geosciences Journal, 10, 23-34.

Manickam, s. and Barbaroux (1987) Variations in the surface texture of suspended quartz grains in the Loire River: ASEM Study. Sedim entology, v.34, pp.495-510.

Nair, M.M., 1990. Structural trend line patterns and lineaments of the Western Ghats, south of 130 latitude. Journal of Geological Society of India, 35, 99–105.

Radhakrishna, B.P. and Vaidyanadhan, R., 1994. Geology of Karnataka. Bangalore: Geological Society of India, 9–17.

Subrahmanya, K.R., 1994. Post-Gondwana tectonics of the Indian Peninsula. Current Science, 67, 527–530.

Udayaganeshan, et al. 2011 Surface Microtextures of Quartz Grains from the Central Coast of Tamil Nadu journal geological society of india

Vol.77, January 2011, pp.26-34.

Published

2022-12-31

How to Cite

M. S., D., Shivanna, M., rajuk, sidduk, & Madesh, P. . (2022). Microtextures on quartz grains in the Estuary sediments of Gurupura River, Dakshina Kannada district, Karnataka State, West coast, India. Journal of The Indian Association of Sedimentologists (peer Reviewed), 39(II), 3–9. https://doi.org/10.51710/jias.v39iII.238
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