Global Optimization for Delineation of Self-potential Anomaly of a 2D Inclined Plate

Rao, Khushwant; Jain, Shraddha; Biswas, Arkoprovo

doi:10.1007/s11053-020-09713-4

Cited by 14 publications

(4 citation statements)

References 58 publications

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“…Realization of this algorithm in complex physical-geological conditions is under question. Rao et al (2020) proposed a global optimization methodology expressed in development of inversion algorithm for 2D inclined plates.…”

Section: Review Of Quantitative Interpretation Methodsmentioning

confidence: 99%

Quantitative analysis of self-potential anomalies: Review of case studies from various SP applications

Eppelbaum

2021

Preprint

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Self-potential (SP) method is one of the most non-expensive and unsophisticated geophysical methods. However, its application limits absence of reliable interpreting methodology, first for the complex geological-environmental conditions. The typical disturbances appearing in the SP method are discussed. To exclude these noise components before the quantitative analysis, some ways for their removing (elimination) are presented. Some brief review of the available interpretation methods is presented. For the magnetic method of geophysical prospecting, special quantitative procedures applicable under complex physical-geological environments (oblique polarization, uneven terrain relief and unknown level of the normal field), have been recently developed. Earlier detected common peculiarities between the magnetic and SP fields have been extended. These common aspects make it possible to apply the advanced procedures developed in magnetic prospecting to SP method. Besides the reliable determination of the depth of anomalous targets, these methodologies enable to calculate the corrections for non-horizontal SP observations and direction of polarization vector. For classification of SP-anomalies is proposed to use a new parameter – 'self-potential moment'. These quantitative procedures (improved modifications of characteristic point, tangent techniques and areal method) have been successfully tested on SP models and employed in real situations in mining, archaeological, environmental and technogenic geophysics. The obtained results indicate practical importance of the developed methodologies.

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Section: Review Of Quantitative Interpretation Methodsmentioning

confidence: 99%

Quantitative analysis of self-potential anomalies: Review of case studies from various SP applications

Eppelbaum

2021

Preprint

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“…For brevity, it is not discussed here. These ideas are well explained in the above literature and were applied in many geophysical data such as gravity, magnetic, and self-potential data [29,72,91,92]. The algorithm was developed in the Windows 10 operating system using the MS Fortran Developer Studio on a desktop PC with an i7 Intel Pentium Processor (9th Generation) and 16 GB RAM.…”

Section: Inversionmentioning

confidence: 99%

“…Due to its limitations in delineating an effective solution, global optimization or metaheuristic optimization is necessary for finding an optimal solution that does not need an initial guess of the model parameters and can give the best result. Global optimization such as the genetic algorithm (GA), particle swarm optimization (PSO), differential evolution (DE) algorithm, very fast simulated annealing (VFSA), genetic-price algorithm (GPO), and whale optimization algorithm (WOA) has been applied to numerous geophysical applications such as seismic data [56][57][58], self-potential data [59][60][61][62][63][64][65][66][67][68][69][70][71][72][73], and also in the interpretation of gravity and magnetic data [3,[74][75][76][77][78][79][80][81][82][83][84][85][86][87][88][89][90][91][92].…”

Section: Introductionmentioning

confidence: 99%

Interpretation of Magnetic Anomalies over 2D Fault and Sheet-Type Mineralized Structures Using Very Fast Simulated Annealing Global Optimization: An Understanding of Uncertainty and Geological Implications

Biswas

Rao

2021

Lithosphere

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Identification of intraterrane dislocation zones and associated mineralized bodies is of immense importance in exploration geophysics. Understanding such structures from geophysical anomalies is challenging and cumbersome. In the present study, we present a fast and competent algorithm for interpreting magnetic anomalies from such dislocation and mineralized zones. Such dislocation and mineralized zones are well explained from 2D fault and sheet-type structures. The different parameters from 2D fault and sheet-type structures such as the intensity of magnetization (k), depth to the top (z1), depth to the bottom (z2), origin location (x0), and dip angle (θ) of the fault and sheet from magnetic anomalies are interpreted. The interpretation suggests that there is uncertainty in defining the model parameters z1 and z2 for the 2D inclined fault; k, z1, and z2 for the 2D vertical fault and finite sheet-type structure; and k and z for the infinite sheet-type structure. Here, it shows a wide range of solutions depicting an equivalent model with smaller misfits. However, the final interpreted mean model is close to the actual model with the least uncertainty. Histograms and crossplots for 2D fault and sheet-type structures also reveal the same. The present algorithm is demonstrated with four theoretical models, including the effect of noises. Furthermore, the investigation of magnetic data was also applied from three field examples from intraterrane dislocation zones (Australia), deep-seated dislocation zones (India) as a 2D fault plane, and mineralized zones (Canada) as sheet-type structures. The final estimated model parameters are in good agreement with the earlier methods applied for these field examples with a priori information wherever available in the literature. However, the present method can simultaneously interpret all model parameters without a priori information.

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“…In the actual mineral geological survey and mineral search, it is generally combined with traditional and modern multifaceted technology to conduct accurate survey from large scale to small scale and from surface to underground to improve the survey accuracy. For example, modern tools such as GPS are used in the geological survey of the project, while traditional methods are used in the topographic survey to achieve the quality requirements of different survey targets while making the work well coordinated [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Geological and Mineral Exploration by Integrating Remote Sensing Technology and Borehole Database

Yan

Zhao

et al. 2022

Wireless Communications and Mobile Computing

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Mineral exploration as the basis for the development of important mineral resources and economic construction, improving the efficiency of geological exploration is conducive to improving the quality of mineral resources. In this paper, the study of modern mineral resources exploration and utilization methods, drawing on the problems in geological exploration work, discusses effective countermeasures to improve and optimize the level of geological exploration from the perspectives of remote sensing technology and borehole database, etc., with a view to improving the efficiency of geological exploration and mineral search technology, so that energy production can achieve sustainable development and be free from the constraints of increasingly difficult mineral resources development. Based on remote sensing technology, GIS is a system derived on the basis of advanced science and technology and information technology, and its application to geological and mineral exploration can help relevant personnel to have foresight to understand the development of geological exploration and provide detailed data support for optimizing geological exploration work. Coalfield geological exploration arranges a large number of boreholes to find out the thickness of coal seams in the exploration area, the distribution pattern of coal seams and the spacing of coal seams, the characteristics of the top and bottom of coal seams, and the characteristics of coal quality. In the coal mining excavation, the technical personnel need to study the geological data of the borehole in time to design or adjust the excavation plan scientifically and reasonably. By implanting an electronic chip in the drill hole markers completed by drilling, the borehole coordinates, elevation, preservation of the borehole markers, and the website address of the borehole database management system are sent to the users in real time, providing geologists with convenient query services of borehole geological information. This paper proposes a geological and mineral exploration optimization method that integrates remote sensing technology and borehole database, and the relevant experiments prove the effectiveness of the proposed method.

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Global Optimization for Delineation of Self-potential Anomaly of a 2D Inclined Plate

Cited by 14 publications

References 58 publications

Quantitative analysis of self-potential anomalies: Review of case studies from various SP applications

Quantitative analysis of self-potential anomalies: Review of case studies from various SP applications

Interpretation of Magnetic Anomalies over 2D Fault and Sheet-Type Mineralized Structures Using Very Fast Simulated Annealing Global Optimization: An Understanding of Uncertainty and Geological Implications

Optimization of Geological and Mineral Exploration by Integrating Remote Sensing Technology and Borehole Database

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