Delineation of Holocene–Pleistocene aquifer system in parts of Middle Ganga Plain, Bihar, Eastern India through DC resistivity survey
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- 作者：Shuva Shankha Ganguli ; Shashikant Singh
- 关键词：South Ganga Plain (SGP) ; Geoelectrical survey ; Aquifer geometry ; Newer alluvium ; Older alluvium ; Bedrock topography
- 刊名：Applied Water Science
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：6
- 期：4
- 页码：359-370
- 全文大小：1,483 KB
- 刊物主题：Hydrogeology; Water Industry/Water Technologies; Industrial and Production Engineering; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution; Nanotechnology; Private International Law, International & Foreign Law, Comparative Law;
- 出版者：Springer Berlin Heidelberg
- ISSN：2190-5495
- 卷排序：6
文摘
The study area forms a part of the Middle Ganga Plain (MGP) and experiences intensive groundwater draft due to domestic, irrigation and industrial purposes. Geoelectrical surveys were carried out in a geomorphic unit of MGP called South Ganga Plain, along the north–south traverse covering a total 50 km stretch. Interpreted results of the total of 17 vertical electrical soundings, carried out, provided information on aquifer and aquitard geometry and sediment nature in different aquifer systems. Bedrock topography is also demarcated along the north–south transect. The estimated dip of massive bedrock is less than 0.5° and dips toward north. The survey results show that a two-tier aquifer system exists in Newer alluvium parts of the study area and it is replaced by a single aquifer system at Older alluvium that occurs under thick clay/sandy clay bed in the southern part. An exponential decay of the aquifer potential is observed from north to south. Paleo channel Sone River is traced and it forms a potential aquifer.