Influence of rock types and structures in the development of drainage networks in typical hardrock terrain

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Krishnamurthy, J. and Srinivas, G. and Jayaraman, V. and Chandrasekhar, M.G. (1996) Influence of rock types and structures in the development of drainage networks in typical hardrock terrain. ITC Journal (3-4). pp. 252-259. ISSN 03032434

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Abstract

In order to understand the role of bedrock lithology and geologic structure in the development of drainage patterns in a typical crystalline area, a study was carried out in the three areas of Dharwar Craton, Karnataka (southwestern India). The three areas are composed mainly of peninsular gneiss, Chitradurga schistose formation and Closepet granite, respectively. The peninsular gneiss has developed dentritic to sub-dentritic patterns, the schistose formation shows trellis to sub-trellis drainage networks and the granites display parallel and rectangular drainage patterns. A quantitative morphometric analysis was carried out for both linear and areal aspects of all three drainage basins for further evaluation and comparison. The detailed analysis suggested that the drainage characteristics are markedly different for the major rock types.

Item Type: Article
Additional Information: cited By 16
Uncontrolled Keywords: bedrock; drainage network; drainage pattern; geological structure; gneiss; gneiss lithology; granite; lithology, India, Karnataka, Dharwar Craton
Subjects: Faculty of Science > Earth Sciences > Geology
Divisions: Jnana Bharathi / Central College Campus > Department of Geology
Depositing User: Mr. Kirana Kumar D
Date Deposited: 16 Mar 2016 07:09
Last Modified: 16 Mar 2016 07:10
URI: http://eprints-bangaloreuniversity.in/id/eprint/497

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