caa a22 4500 445815620 CHVBK 20180317145227.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s10040-010-0697-7 doi (NATIONALLICENCE)springer-10.1007/s10040-010-0697-7 Deep resistivity sounding studies for probing deep fresh aquifers in the coastal area of Orissa, India [Elektronische Daten] [S. Singh, B. Veeraiah, R. Dhar, B. Prakash, M. Tulasi Rani] Investigations d'aquifères à eau douce par sondages électriques profonds dans la zone côtière de Orissa, Inde Exploration and exploitation of groundwater in sedimentary areas are reasonably simple. However, the problem of salinity in coastal areas makes the job very difficult, especially when the freshwater aquifers are not extensive and are entrapped between saline aquifers. States along the eastern coast of India, particularly Orissa with respect to the Mahanadi basin, have acute problems with groundwater salinity. It has been possible to locate horizons of fresh groundwater entrapped between deep saline aquifers in the southwestern part of Mahanadi delta, with the help of deep resistivity soundings along the Delang-Puri profile. This finding has been validated through boreholes and checked with electrical logs of this region. Three freshwater aquifers have been detected: one at shallow depth between 20 and 60m, the second in the depth range of 90-160m, and the third in the fractured/weathered basement. The second freshwater aquifer has the most potential; it has a thickness range of 20-80m and it could be exploited to overcome problematic salinity issues. In general, the depth to basement is variable and it increases seaward. Springer-Verlag, 2011 Deep resistivity sounding nationallicence Groundwater exploration nationallicence Coastal aquifers nationallicence Mahanadi basin nationallicence India nationallicence Singh S. National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, 500007, Hyderabad, India aut Veeraiah B. National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, 500007, Hyderabad, India aut Dhar R. National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, 500007, Hyderabad, India aut Prakash B. National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, 500007, Hyderabad, India aut Tulasi Rani M. National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, 500007, Hyderabad, India aut Hydrogeology Journal Springer-Verlag 19/2(2011-03-01), 355-366 1431-2174 19:2<355 2011 19 10040 https://doi.org/10.1007/s10040-010-0697-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10040-010-0697-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Singh S. National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, 500007, Hyderabad, India aut NATIONALLICENCE 700 1- Veeraiah B. National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, 500007, Hyderabad, India aut NATIONALLICENCE 700 1- Dhar R. National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, 500007, Hyderabad, India aut NATIONALLICENCE 700 1- Prakash B. National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, 500007, Hyderabad, India aut NATIONALLICENCE 700 1- Tulasi Rani M. National Geophysical Research Institute (Council of Scientific and Industrial Research), Uppal Road, 500007, Hyderabad, India aut NATIONALLICENCE 773 0- Hydrogeology Journal Springer-Verlag 19/2(2011-03-01), 355-366 1431-2174 19:2<355 2011 19 10040 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer