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Gravity and magneto-telluric study of Manuguru geothermal field, Telangana state, India by Vishal Sakhare; Abhay Kant; Upananda Low; Bishnu P. Biswal; Suman Paul; Durgam Hanmanthu is a Engineering article available to read on EtoBox.

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Manuguru geothermal field is located on the southeastern margin of the Godavari River valley. A sequence of rocks of the Gondwana group unconformably lies over a quartzite-phyllite basement of the Pakhal Supergroup in the present study area. A geophysical investigation deploying gravity and magneto-telluric (MT) survey was carried out covering an area of 200 km 2 to characterize the Manuguru geothermal system and locate the probable reservoir source. Bouguer gravity anomaly shows a noticeable variation of 25 mGal ranging from -72 mGal to -47 mGal. Residual gravity and derivative analysis exhibit that there are several basement faults controlling the deep subsurface hot water flow in the area. In the MT study, a total of 27 MT soundings data were acquired at varied frequency ranges (20 kHz to DC). The MT data were analyzed for 1D as well as 2D modeling using the inversion technique to configure the subsurface resistivity distribution along three selected profiles (P1 to P3). Two exploratory drillings conducted based on our studies validate the inferred low resistivity anomalies. To configure basement and fault systems, a 2D forward gravity inversion modeling was performed along a se

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Author

Vishal Sakhare; Abhay Kant; Upananda Low; Bishnu P. Biswal; Suman Paul; Durgam Hanmanthu

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)