GEOLOGY OF CAUVERY BASIN PDF

The fourth largest river of southern region, begins its km long journey from the Western Ghats; traverses through Mysore plateau and finally forms a delta on the eastern coastline of the subcontinent before falling into the Bay of Bengal. The point of origin of Cauvery, Talakaveri is in the Brahmagiri ranges of the Western Ghats at an elevation of m. Geologically, the basin forms a part of the South Indian Shield. The shield areas of the world are considered to have preserved early-formed crust prior to Ma.

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Bbasin eastern parts of the basin are covered by alluvium and contain a relatively thicker and more complete sedimentary sequence. Statewise Drainage Area Km 2. About the Cauvery Basin Over the main basin, the peninsular granites and gneisses comprising of biotite granitic gneiss, hornblende granitic gneiss geoolgy widely found.

Red soils occupy large areas in the basin. The Cauvery basin extends over an area of 81, km 2which is nearly The depocentres were mainly due west. Laterite soil is found in the lower parts of Orissa. Email this article Login required. Drainage Area Km 2. Outcrops ranging baasin age from Late Jurassic to Recent are located nearer the western margin of the basin.

Major Tributaries with drainage area in sq. The main geeology types found in the basin are red and yellow soils. Gondwana System, Aligarh, India, Ann. Climate of Cauvery B asin.

Initial sedimentation was under non-marine environment. Accompanying these are greenstones and quartzite. Cauvery basin experiences tropical climate. The principal soil types found in the basin are black soils, red soils, lateritesalluvial soils, forest soils, and mixed soils. Depressions in the Bay of Bengal affect the basin in the monsoon, causing cyclones and widespread heavy rains.

Sawkar endowment for Teachers training V. Biostratigraphy and Evolution of the Cauvery Basin, India Sastri Geological Society of India The shape of the basin is somewhat rectangular with a maximum length and breadth of km and km, respectively.

The geology of the drainage basin is predominantly formed from Precambrian rocks, principally the DharwarsPeninsular granitic Gneiss, Charnockites and the Closepet Granite. Suryaprakash Rao Endowment Lecture K. Physiographicallythe basin can be divided into three parts: The differentiation of the basin into depressions and ridges was almost lost during Eocene. Muthuswami Memorial Lecture C. The results show that at many places, the quality of water was quite poor compared to what was the desired class.

Subscription Login to verify subscription Purchased Articles. Karanth Endowment Lecture T. The delta area is the most fertile tract in the basin. It is bounded on the west by the Western Ghatson the geolofy and south by the Eastern Ghats and on the north by the ridges separating it from the Tungabhadra Krishna and Pennar basins. Occasional flood problem in lower reaches and delta cauuvery of Cauvery river.

Article Tools Print this article. Future Challenges in Earth The tributaries joining it from the right are the Lakshmanathirthathe Kabbaniand the Survanavathi. Here, the main climatic feature is the monsoon rain. Water Potential of the Basin. The north-east monsoon provides the greater portion of the annual precipitation.

Email the author Login required. Forest and agriculture are the main stay of the people in the interior geologyy of the basin. Mixed red and black soils occur in parts of the BolangirSambalpurand Sundargarh districts of Orissa.

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Cauvery River Basin: An Overview

The depocentres were mainly due west. Cauvery Basin: Geology The Closepet Granite of the upper reaches of the Cauvery basin is a pink granite consisting mainly of quartz, plagioclase, microcline, perthiteand subordinate hornblende. The geoloyg area of the basin is about 58, km 2 which is about three percent of the culturable area of the country. Mahadevan Endowment Lecture R. The important tributaries joining Cauvery in the Coorg district are the Kakkabethe Kadanur and the Kummahole. The results show that at many places, the quality of water was quite poor compared to what was the desired class. Vaidyanadhan Award Endowment Lecture C.

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