GEOLOGY OF CAUVERY BASIN PDF

GEOLOGY OF CAUVERY BASIN PDF

Map of India showing Cauvery Basin, b. Geological map of the Ariyalur Sub- basin showing the distribution of Cretaceous and Tertiary formations (modified after. Cauvery Basin: Geology. Cauvery basin forms a part of the South Indian Shield that preserves an early formed crust (> Ma). In terms of rock types. Biostratigraphy and Evolution of the Cauvery Basin, India. KING, W. and FOOTE, R. B., () On the geological structure of portions of the district of.

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It is bounded on the west by the Western Ghatson the east and south by the Eastern Ghats and on the north by the ridges separating it from the Tungabhadra Krishna and Pennar basins.

The basin underwent an easterly tilt and the depocentres shifted due east prior to marine transgression during the beginning of Tertiary. Geopogy tributaries joining it from the right are the Lakshmanathirthathe Kabbaniand the Survanavathi. These are represented by gabbros, olivine noritesand pyroxene. Cauvery then enters the Mysore district where important tributaries joining the river from the left are the Harangithe Hemavathithe Shimsha and the Arkavathi.

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Krishnaraja sagar dam, NuguMettur and Grand Anicut projects. Outcrops ranging in age from Late Jurassic to Recent are located nearer the western margin of the basin. Initial sedimentation was under non-marine environment. A major regression occurred during the close of Cretaceous.

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Total Drainage Area Km 2. Water Potential of the Basin. The Closepet Granite of the upper reaches of the Cauvery basin is a pink granite consisting mainly of quartz, plagioclase, microcline, perthiteand subordinate hornblende.

Muthuswami Memorial Lecture C. The highest rainfall in the basin is received along the western border of the basin during the southwest monsoon. Alluvial soils are found in the delta areas.

Cauvery Basin: Geology

The important tributaries joining Cauvery in the Coorg district are the Kakkabegology Kadanur and the Kummahole. Mahadevan Endowment Lecture R. The differentiation of the basin into depressions and ridges was almost lost during Eocene. Article Tools Print this article.

Here, the main climatic feature is the monsoon rain. Climate of Cauvery B asin. Several studies were made by the Central Pollution Control Board to ascertain the status of water quality in the Cauvery River. The geology of the drainage basin is predominantly formed from Precambrian rocks, principally geologyy DharwarsPeninsular granitic Gneiss, Charnockites and the Closepet Granite.

Vaidyanadhan Award Endowment Lecture C.

About the Cauvery Basin

Naqvi Gold Medal K. Abstract Outcrops ranging in age from Late Jurassic to Recent are located nearer the western margin of the basin. Mixed red and black soils occur in parts of the BolangirSambalpurand Sundargarh districts of Orissa. Gupta Gold Medal L. Caugery Drainage Area Km 2.

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The deltaic soil is found in the coastal plains of the Mahanadi. The results show that at many places, the quality of water was quite poor compared to what was the desired class. Soil of the Basin. Future Challenges in Earth Physiographicallythe basin can be divided into three parts: Over the main basin, the peninsular granites and gneisses comprising of biotite granitic gneiss, hornblende granitic gneiss are widely found.

Except in feology Chhatisgarh and coastal plains, the basin has an extensive area under forests. Email the author Login required. The exposed and subsurface sedimentary cauveru are adequately fossiliferous and several faunal as well as palynological zones are established.

The far north-western part of the drainage basin has a per-humid climate which passes eastwards into humid, moist sub-humid, dry sub-humid and semi-arid zones. Sedimentation during the Tertiary period was marked by repeated transgressions and regressions as is evidenced by biofacies, isopachs, and several sedimentation breaks which are egology more pronounced in the western parts of the basin.