SCHOOL OF ENVIRONMENTAL AND EARTH SCIENCES

The Tapi River alluvium is covered by 30 percent of the present and Deccan trap is covered by 70 percent. In the study area basalt shows alternate layers of weathered, fractured, hard and massive basalt, while alluvium shows alternate layers of sand, silt, yello The litho types and thickness of the individual layers from the vertical electrical sounding locations were anticipated by referring litho unit suggested by the Inverse slope method. groundwater level due to various reasons including unpredictable rainfall leading to excessive withdrawal of subsurface water for agricultural and drinking purpose. sugarcane and banana etc. A thick layer of yellow silt affected the lateral and vertical percolation of ground water while in the study area of Deccan basalt heavy rainfall occur in monsoon months and because of this more surface runoff subjected to the less ground water recharge due to undulating topography. The highest elevation of study area is 420 m near Bijasani Mata Temple to the north and lowest elevation is 150 m near Tapi River in south.

The Tapi River alluvium is covered by 30 percent of the present and Deccan trap is covered by 70 percent. In the study area basalt shows alternate layers of weathered, fractured, hard and massive basalt, while alluvium shows alternate layers of sand, silt, yello The litho types and thickness of the individual layers from the vertical electrical sounding locations were anticipated by referring litho unit suggested by the Inverse slope method. groundwater level due to various reasons including unpredictable rainfall leading to excessive withdrawal of subsurface water for agricultural and drinking purpose. sugarcane and banana etc. A thick layer of yellow silt affected the lateral and vertical percolation of ground water while in the study area of Deccan basalt heavy rainfall occur in monsoon months and because of this more surface runoff subjected to the less ground water recharge due to undulating topography. The highest elevation of study area is 420 m near Bijasani Mata Temple to the north and lowest elevation is 150 m near Tapi River in south.

A geophysical survey conducted in the Chopda and nearby the area of North-West part of Jalgaon district, Maharashtra
using electrical resistivity method. A total 10 vertical electrical soundings has been taken to depict groundwater potential zone in the area under study and also understand the thickness of weathered zone/formation relevant to groundwater behaviors of aquifers in alluvium and in the trap rock. For the interpretations of VES results IX1Dv.3 software were use to generate the layered model of each sounding and also adopting curve matching techniques. A total four layer strata was obtained in the present study. The resistivity and thickness of the first layer are 2.6 ohm m to 140 ohm m and 0.2 m to 0.9 m respectively was observed. The sounding data obtained of second layer 2.1 ohm m to 29.33 ohm m. Resistivity and thickness of the third layer varies from 2.75 ohm m to 33.9 ohm m and 5.2 m to 52.2m respectively.The Fourth layer resistivity goes  very high at Village Akulkhede up to 949 ohm m. KH curve type is observed in the 30 % and KQ, HK are in the 20% VES locations. The VES 2 and 8 result shows that the high resistivity value in the cross section. Pseudo cross section and resistivity cross section map were formulated by using IPI2WIN software. The resistivity results of VES 2 and 5 show that the hard compact basalts occurring at 13 and 20 m depth respectively. The resistivity results of VES 2 and 8 shows that the high resistivity zones occurring at 4 to 20 m depth. The obtained results of VES have been compared with the existing bore well and tube well logging data.