Evolution of Landforms Over the Nilgiri, South India

Authors

  • Y. J. Pardhasaradhi
     Department of Geology, Andhra University, Waltair
  • R. Vaidyanadhan
     Department of Geography, Andhra University, Waltair

Abstract

Two relict levels of erosion over the Nilgiri are recognised within a polycyclic and polygenetic planar Nilgiri surface. Landform study suggests a pediment cycle for the Ootacamund landforms, the younger of the two relict landforms. The older Dodabetta landforms now stand as vestiges of the original ground at higher elevations. Climate might have been less humid over a major part of this region during the period of pedimentation (post-Miocene) compared to earlier and later times. The Quaternary lowering of temperature in Pleistocene and subsequent warming up of climate are likely to have resulted in the formation of swampy courses, alluvial tracts and peaty subsoils along certain streams over the Nilgiri.

Downloads

Download data is not yet available.

Issue

Volume 15, Issue 2, June 1974

Section

Articles

Downloads

Published

1974-06-01

How to Cite

Pardhasaradhi, Y. J., & Vaidyanadhan, R. (1974). Evolution of Landforms Over the Nilgiri, South India. Journal of Geological Society of India, 15(2), 182–188. Retrieved from https://geosocindia.com/index.php/jgsi/article/view/63127

References

AROGYASWAMY, R. N. P., (1967) Geomorphological features of Nilgiri mountains. Proc. Seminar Geomorph, studies in India (1965), Sagar. pp. 78-86.

AUDEN, J. B., (1971) Discussion on paper on 'Deep main faults in South India '. Jour, Geol, Soc. India, v. 12 (4), pp. 407-410.

BLANFORD, H. F., (1856) On the Geological structure of the Nilghiri hills. Mem. Geo, Sur. India, v, 1, PI. 3.

BUDEL, J., (1968) Geomorphology-principles. Encyl. Geomorphology. Ed: Fairbridge Reinhold Book Corpn., New York, pp, 416-421.

COTTON, C. A., (1968) Relict landforms. Ibid. pp. 936-940.

FRYE, J. C., (1959)' Climate and Lester King's uniformitarian nature of hillslopes. Jour. Geol. v. 67, pp.111-113.

GARNER, H. F., (1968) Climatic geomorphology. Ency. Geomorphology. Ed: Fairbridge Reinhold Book Corpn., New York. pp. 129-130.

KING, L. C., (1950) The study of the world's plainlands. Quart. Jour. Geol. Soc. Lond., v. 106, pp. 101-131.

KING, L. C., (1953) Cannons of landscape evolution. Bull. Geol. Soc. America, v. 64, pp. 721-752.

KRISHNAN, M. S., (1953) The structural and tectonic history of India. Mem. Geol. Surv. India, v.81.

MENON, V. K., (1966) Pollen analysis of the post glacial deposits from Pykara, Ootacamund, India. Jour. Palynology, v. 2 and 3, pp. 1-10.

PARDHASARADHI, Y. J., (1971) Lineament evidence in geomorphic evolution. Abs, Proc. 58th Ind. Sci. Congr, Bangalore.

PARDHASARADHI, Y. J. and VAIDYANADHAN, R., (1971) A pediment survey to the north of Coimbatore in South India. Curro Sci., 40(14), pp, 376-377.

PRABHAKARA RAO, G., (1962) Some aspects of the placer deposits of South Kerala in relation to the geomorphic evolution of the west coast of India. Unpublished D.Sc. thesis, Andhra University.

RADHAKRISHNA, B. P., (1952) The Mysore Plateau - its physiographic and structural evolution. Bull, Mysore Geologists Assn. No.3.

RADHAKRISHNA, B. P., (1968) Geomorphological approach to charnockite problem. Jour. Geol, Soc. India, v. 9, PP. 67-74.

SUBRAMANIYAM, V. P., SUBBA RAO, B. and SUBRAMANIAM, A. R., (1965) Koppen & Thornthwaite system of climatic classification as applied to India. Annals. Arid. Zone., v. 4, pp.46-55.

Most read articles by the same author(s)

1 2 3 4 5 6 > >>