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Facies Development and Depositional Environment of the Patherwa Formation (Semri Group), Son Valley, India

Open Journal of Geology 2012年第2期2卷 80-90页

作者： Abul Hasnat Masood Ahmad Ghulam Mohammad Bhat Ruchi Agarwal Department of Geology Aligarh Muslim University Aligarh India Postgraduate Department of Geology Jammu University Jammu India

The present study documents three facies associations recorded from the Patherwa Formation. These facies are related to tidally influenced fluvial channel (Facies association A), tidal channel (Facies association B) and tidal sand bar/tidal flat sandy facies (Facies association C). The spatio-temporal variation of these facies associations and palaeocurrent trends suggest tide dominated estuarine system. The estuaries were operational along a 60 km long NW-SE trending palaeo-shoreline. The Patherwa Formation grades up-section into facies packages of increasing tidal energy and terminate with the deposition within the upper flow regime estuarine settings.

关键词： vindhyan Basin Sedimentary Facies Palaeocurrents Estuary Tidal Flats Upper Flow Regime

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Evaluation of Hydrogeology of the Lower Son Valley Based on Remote Sensing Data

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Journal of Geographic Information System 2010年第4期2卷 219-226页

作者： Manas Banerjee Debolin Bhattacharya Hriday Narain Singh Daya Shanker 不详

Remote sensing, one of the most important reconnaissance and feature identifying tools generally applied for surface and groundwater investigation, was used for water resources mapping for the lower Son Valley in this study. The mapping was done with the help of Indian Remote Sensing (IRS) satellite imagery IRS-LISS- 1-B1 for January 29, 1991 obtained during the day transit time. The area under study comprises adjoining parts of Uttar Pradesh and Bihar states of India and extends over the seven districts, namely Bhojpur, Rohtas, Patna, Jahanabad, Aurangabad, Ballia and Chapra. Geology of the study area is quite complex, tectonically disturbed and shows four major cycles of depositions after erosions during last one billion years (since Cretaceous). Two lineaments mapped by GSI (Geological Survey of India) in western side of river Son in the Bhojpur district can also be identified by the satellite imagery. In the present study, apart from these lineaments, two new lineaments have been investigated, which run almost parallel to river Ganga in northwest parts of the area in Ballia district. The lineaments may play a very vital role in groundwater monitoring in the area. The detailed study of geomorphology, vegetation and geology of the Lower Son valley on the basis of photo-interpretation techniques for surface features, drainage pattern and density, and drainage texture has been carried out to determine alluvial type, permeability, tributary, etc. These studies and Darcy velocity analysis show that the prospect of water is very good for entire lower Son valley. The Bhojpur district is most prospective for groundwater exploitation.

关键词： Lower Son Valley Groundwater Monitoring Satellite Imageries vindhyan Super Group of Kaimur Series Lineaments Drainage Analysis

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