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Shah, M., Sircar, A., Sahajpal, S., Sarkar, P., Sharma, D., Garg, S., Mishra, T., & Shukla, Y. (2017). Geochemical Analysis for Understanding Prospectivity of Low Enthalpy Geothermal Reservoirs of Dholera. In 42nd Workshop on Geothermal Reservoir Engineering (pp. 1-16). Stanford, CA: Stanford University.

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• TITLE: Evolutionary Programming for Systematic Evaluation of Aquifers: A Case Study from Dholera, Cambay Basin, Gujarat, India

  AUTHORS: Kriti Yadav, Anirbid Sircar

  KEYWORDS: Evolutionary Programing, Seismic, Dholera, Resistivity, Magnetotelluric

  JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.7 No.4, April 23, 2019

  ABSTRACT: Joint inversion of different potentials improves subsurface model resolution. In this paper seismic refraction and magnetotelluric data are used to understand near subsurface features of Dholera, Gujarat, India. An extensive seismic and magnetotelluric survey was carried out in Dholera in order to delineate subsurface presence of aquifers. Ray Inversion for Near Surface Estimation (RINSE) is used for inversion of Dholera seismic data. The inversion output of seismic data is used as seed points for resistivity inversion of anomalies. Inversion of resistivity data is done using evolutionary programing method which is also a type of genetic algorithm. Here the optimization is done using four major steps, of evolutionary programing namely population generation, fitness function, crossover and mutation. This paper also compares the similarities between the natural and geophysical optimization. A Low Velocity Layer is identified up to a depth of 11 m from seismic refraction method. Three layers are identified after the interpretation of seismic and resistivity data. The average thicknesses of Layers one and two are calculated as 3.558 and 6.533 respectively.