Hydrogeological evolution of the Luni river basin, Rajasthan, western India: A review

被引：8

作者：

Bajpai V.N. ^{[1
]}

机构：

[1] Department of Geology, University of Delhi

来源：

Journal of Earth System Science | 2004年 / 113卷 / 3期

关键词：

Bouguer anomaly; FCC image; Graben; Lineament; Pediment; Valley fill;

D O I：

10.1007/BF02716735

中图分类号：

学科分类号：

摘要：

The Luni river basin has been evolved as a result of typical hydrogeomorphic processes of arid zone, operating under the influence of active tectonic lineaments. A detailed analysis of stream morphology in relation to geology and lineaments carried out on selected windows indicated the morphological control of the streams while flowing over the lineaments from the eastern to the western part of the basin. Typical valley fills indicated by dark green tone on digitally, processed images and the pediments showing greenish white tone appear in sharp contrast and indicate respectively the graben and horst structures. A detailed identification of lineaments for the georesources and geological evaluation has been carried out. Earlier analysis carried out on Bouguer anomalies correlate with graben and horst structures in the subsurface. Quaternary sequences have been dated from 80 ka to 3 ka indicating a range of fluvial to aeolian deposits reflecting prevailing climatic conditions. However, the changes in sediment type from coarse and mixed of all size grades to fine in a vertical litho-column warrant further studies on fine resolution stratigraphy and high resolution stratigraphy for understanding climatic variations in the region. © Printed in India.

引用

页码：427 / 451

页数：24

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