Search Results - "SRIVASTAVA, SHALIVAHAN"

The Effect of Monsoon Circulation on the Stable Isotopic Composition of Rainfall by Midhun, M., Lekshmy, P. R., Ramesh, R., Yoshimura, Kei, Sandeep, K. K., Kumar, Samresh, Sinha, Rajiv, Singh, Ashutosh, Srivastava, Shalivahan

“…Understanding the factors that control the variability of oxygen isotopic ratios (δ18O) of Indian Summer Monsoon (ISM) rainfall (δ18Op) is of vital importance…”
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Delineation of sulfide mineralization over a part of western margin of greenstone belt of the Dhanjori Basin, Singhbhum Craton from petrophysical, petrographic and geophysical studies by Gupta, Ashok Kumar, Srivastava, Shalivahan

“…•Geological domain identification using petrophysical data.•Occurrence of sulfosalts in association with sulfides indicate sulfide hosted Au…”
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Joint inversion of Rayleigh wave fundamental and higher order mode phase velocity dispersion curves using multi‐objective grey wolf optimization by Vashisth, Divakar, Shekar, Bharath, Srivastava, Shalivahan

“…Rayleigh wave dispersion curves can be inverted to retrieve subsurface seismic velocity profiles. The inverse problem is ill‐posed, nonlinear and poorly…”
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Magnetotelluric images of the medium enthalpy Bakreswar geothermal province within a granitic gneissic complex, Eastern Indian Peninsula by Singh, Roshan K., Weckmann, Ute, Srivastava, Shalivahan

“…The Bakreswar geothermal province represents a medium enthalpy geothermal system with its Bakreswar and Tantloie hot springs. It lies within the Chotanagpur…”
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An approach to estimate gas hydrate saturation from 3-D heterogeneous resistivity model: A study from Krishna-Godavari basin, Eastern Indian offshore by Jana, Soumya, Ojha, Maheswar, Sain, Kalachand, Srivastava, Shalivahan

“…A method is proposed to estimate gas hydrate saturation from three dimensional (3-D) heterogeneous model of resistivity simulated using resistivity log. Pure…”
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Interpretation of resistivity data using 3D Euler deconvolution and Radially Averaged Power Spectrum by Mondal, Shovana, Srivastava, Shalivahan, Gupta, Ashok K

“…Different electrode configuration in resistivity measurements over the same geologic structures generally produce different anomaly patterns. This is related…”
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Evolution of eastern segment of the Central India Tectonic Zone: an insight from a magnetotelluric study by Raju, Khasi, Patro, Prasanta K, Borah, Ujjal K, Srivastava, Shalivahan, Reddy, K Chinna

“…SUMMARY The collision process between the South Indian Block (SIB) and North Indian Block (NIB) resulted in the development of the complex crustal nature of…”
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Subsurface cavity detection over Patherdih colliery, Jharia Coalfield, India using electrical resistivity tomography by Bharti, Abhay Kumar, Pal, S. K., Priyam, Piyush, Kumar, Sahadev, Srivastava, Shalivahan, Yadav, Pramod Kumar

“…The present study deals with delineation and mapping of subsurface voids which are very common around the Patherdih colliery of Jharia coal field, India. These…”
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Grey wolf optimizer: A new strategy to invert geophysical data sets by Agarwal, Aayush, Chandra, Akash, Srivastava, Shalivahan, Singh, Roshan K

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Inversion of the amplitude of the two-dimensional analytic signal of the magnetic anomaly by the particle swarm optimization technique by Srivastava, Shalivahan, Agarwal, B. N. P.

“…Amplitude of the 2-D analytic signal of the magnetic anomaly profile is independent of the directions of the Earth's magnetic field vector and remnant…”
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Applications of Ant Colony Optimization in determination of source parameters from total gradient of potential fields by Srivastava, Shalivahan, Datta, Debanjan, Agarwal, B.N.P, Mehta, Suman

“…ABSTRACT A unified interpretation technique, based on the computation of total gradient from first order horizontal and vertical derivatives of a measured…”
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Audio-magnetotelluric investigation of sulfide mineralization in Proterozoic–Archean greenstone belts of Eastern Indian Craton by Singh, Shailendra, Maurya, Ved P, Singh, Roshan K, Srivastava, Shalivahan, Tripathi, Anurag, Adhikari, P K

“…Greenstone belts are well known for gold occurrences at different regions of the world. The Dhanjori basin in the eastern Singhbhum region shows major…”
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Inversion of the amplitude of the two-dimensional analytic signal of the magnetic anomaly by the particle swarm optimization technique: Inversion of AAS by PSO by Srivastava, Shalivahan, Agarwal, B. N. P.

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Lithologic boundaries from gravity and magnetic anomalies over Proterozoic Dalma volcanics by Yadav, Pramod Kumar, Adhikari, P K, Srivastava, Shalivahan, Maurya, Ved P, Tripathi, Anurag, Singh, Shailendra, Singh, Roshan K, Bage, Ashish K

“…Dalma volcanics (DVs) has intruded the older Singhbhum Group of Metapelites. Despite DVs being rich in mineralisation, its boundaries are not clearly…”
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The South India Precambrian crust and shallow lithospheric mantle: Initial results from the India Deep Earth Imaging Experiment (INDEX) by RAI, S S, BORAH, KAJALJYOTI, DAS, RITIMA, GUPTA, SANDEEP, SRIVASTAVA, SHALIVAHAN, PRAKASAM, K S, SIVARAM, K, KUMAR, SUDESH, MEENA, RISHIKESH

“…We present here the most comprehensive study of the thickness and composition ( ratio) of the South India Precambrian crust and the nature of shallower mantle…”
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Analyses of self-potential anomalies by conventional and extended Euler deconvolution techniques by Agarwal, B.N.P., Srivastava, Shalivahan

“…A unified approach to analyze the self-potential anomalies due to the oxidation–reduction process is developed to compute the location, depth and geometry of…”
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Interpretation of self-potential anomalies by Enhanced Local Wave number technique by Srivastava, Shalivahan, Agarwal, B.N.P.

“…A model-independent technique, based on the Enhanced Local Wave number ( K x , K z ), has been discussed to interpret self-potential anomalies over a pole, a…”
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Applications of Ant Colony Optimization in determination of source parameters from total gradient of potential fields by Srivastava, Shalivahan, Datta, Debanjan, Agarwal, B. N. P., Mehta, Suman

“…A unified interpretation technique, based on the computation of total gradient from first order horizontal and vertical derivatives of a measured anomaly,…”
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Enhancing Deep Learning based RMT Data Inversion using Gaussian Random Field by Ghosal, Koustav, Singh, Arun, Malakar, Samir, Srivastava, Shalivahan, Gupta, Deepak

“…Deep learning (DL) methods have emerged as a powerful tool for the inversion of geophysical data. When applied to field data, these models often struggle…”
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A FORTRAN program to implement the method of finite elements to compute regional and residual anomalies from gravity data by Agarwal, B.N.P., Srivastava, Shalivahan

“…In view of the several publications on the application of the Finite Element Method (FEM) to compute regional gravity anomaly involving only 8 nodes on the…”
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