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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Alluvial soils are found in the delta areas.

Krishnaraja sagar dam, NuguMettur and Grand Anicut projects. Depressions in the Bay of Bengal affect the basin in the monsoon, causing cyclones and widespread heavy rains. Physiographicallythe basin can be divided into three parts: The culturable area of the basin is about 58, geollgy 2 which is about three percent of the culturable area of the country. Suryaprakash Rao Endowment Lecture K. The shape of the basin is somewhat rectangular with a maximum length and breadth of km and km, respectively.


How to cite item. Occasional flood problem in lower reaches and delta areas of Cauvery river. Accompanying these are greenstones and quartzite.

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Further down, the river enters Vauvery Nadu state where the many tributaries, namely, the Bhavanithe Noyiland the Amravathi join it. Abstract Outcrops ranging in age from Late Jurassic to Recent are located nearer the western margin of the basin. Sedimentation during the Tertiary period was marked by repeated transgressions and regressions as is evidenced by biofacies, isopachs, and several sedimentation breaks which are relatively more pronounced in the western parts of the basin.

Gondwana System, Aligarh, India, Ann. Cauvery basin experiences tropical climate. The geologg rainfall in the basin is received fauvery the western border of the basin during the southwest monsoon. Wadia Endowment Lecture G. 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. The Cauvery basin extends over an area of 81, km 2which is nearly Soil and Land use of Basin.

Marine environment of sedimentation continued till Cretaceous, although through a series of minor transgressions and regressions.


Climate of Cauvery B asin. Future Challenges in Earth The important tributaries joining Cauvery in the Coorg district are the Kakkabethe Kadanur and the Kummahole. Email the author Login required. Water Potential of the Basin. The Charnockites are confined to the Nilgiri Range in the central part geolgy the drainage basin.

The first marine transgression occurred during the close of Late Jurassic. Gupta Gold Medal L.

Biostratigraphy and Evolution of the Cauvery Basin, India | Sastri | Geological Society of India

Geology of the Basin. Prahalad Rao Memorial Lecture Dr. The Dharwar metamorphics mainly comprise of phyllitesslates, schists cauveryy chlorite, biotitegarnet, and hornblende. The total length of the river from source to its outfall into Bay of Bengal is about km.

Cauvery then enters the Mysore district where important tributaries joining the river from the left are the Harangithe Hemavathithe Shimsha and the Arkavathi. Drainage Area Km 2.