A very fast simulated annealing method for inversion of magnetic anomaly over semi-infinite vertical rod-type structure

Biswas, Arkoprovo; Acharya, Tapas

doi:10.1007/s40808-016-0256-x

Cited by 33 publications

(27 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many linear and linearized inversions such as least squares, linearized least squares, normalized local wave number method, analytic signal derivatives, second-horizontal derivatives, Euler deconvolution method, simplex algorithm, fair function minimization have also been developed (McGrath and Hood 1973;Silva 1989;Salem and Ravat 2003;Salem et al 2004;Salem 2005;Salem and Smith 2005;Tlas and Asfahani 2011a, b;Abdelrahman and Essa 2015;Tlas and Asfahani 2015). Global optimization methods such as simulated annealing, very fast simulated annealing, regularized inversion, particle swarm optimization and higher-order horizontal derivative methods (Gokturkler and Balkaya 2012;Sharma and Biswas 2013;Biswas and Sharma 2014a, b;Mehanee 2014a, b;Biswas 2015;Singh and Biswas 2015;Biswas 2016;Biswas and Acharya 2016;Ekinci 2016) have been effectively applied to solve nonlinear parametric inversion problems. A combined work of various other modeling methods can be found in Abo-Ezz and Essa (2016), Abdelrahman and Essa (2005) and Abdelrahman et al (2003Abdelrahman et al ( , 2009Abdelrahman et al ( , 2012.…”

Section: Introductionmentioning

confidence: 99%

Inversion of Source Parameters from Magnetic Anomalies for Mineral/Ore Deposits Exploration Using Global Optimization Technique and Analysis of Uncertainty

Biswas

2017

Nat Resour Res

Self Cite

View full text Add to dashboard Cite

Global optimization algorithm using very fast simulated annealing has been used for modeling of magnetic anomaly over various idealized geobodies for mineral/ore deposit investigation. The present technique shows that it can match the observed data very well assuming some simple geometrical bodies such as sphere, horizontal cylinder and thin dyke or sheet. Uncertainty associated with the modeling was also studied. It has been found that the obtained source parameters are strongly identical when all the parameters are optimized. The present study shows that amplitude coefficient depends on the shape factor. The relation between them shows a multimodel-type uncertainty. The shape factor modeled from several VFSA runs shows the different kind of subsurface structure. Constraining the shape factor gives reliable results and analysis of histograms and cross-plots also gives the utmost reliable results, which show a unimodel character. Inversion of synthetic noise-free and noisy data shows the worth of the present work. The present algorithm was also tested in five field case studies for mineral/ore exploration. Computation time for this present work is very minimal.

show abstract

Section: Introductionmentioning

confidence: 99%

Inversion of Source Parameters from Magnetic Anomalies for Mineral/Ore Deposits Exploration Using Global Optimization Technique and Analysis of Uncertainty

Biswas

2017

Nat Resour Res

Self Cite

View full text Add to dashboard Cite

show abstract

“…Measurements of the total gradient of the magnetic field may also be made (Biswas et al, 2017). The shape dimensions, and amplitude of an induced magnetic anomaly are a function of the orientation, geometry, size, depth, and magnetic susceptibility of the body as well as the intensity and inclination of the earth's magnetic field in the survey area (Biswas, 2018(Biswas, , 2016Biswas and Acharya, 2016).…”

Section: Introductionmentioning

confidence: 99%

A reconnaisance study to delineate the potential mineral zones around the schist belt areas Of Kano State, Nigeria using airborne magnetic data

Jamaluddeen¹,

Aku²,

Saleh³

et al. 2019

J. Geol. Min. Res.

View full text Add to dashboard Cite

This work presents a reconnaissance study to delineate potential mineral zones in the schist belt areas of Kano State. These parts of the state have received little or no attention for a long time and activities of artisanal miners suggest that the area is of economic mineral value. Airborne magnetic data acquired from Nigerian Geological Survey Agency (NGSA) were first reduced to the equator before subjecting them to first and second vertical derivatives. The short wavelength anomalies recorded in the study area, ranging from-99.182 to 88.338 nT indicate that the area is characterized by crystalline basement complex rocks. The results of the vertical derivatives show that lineaments (depicting faults, fractures and contacts) which represent veins of possible mineralization exist in the study area. The trend of these lineaments is in the NE-SW and E-W directions with the NE-SW trend dominating. Location with high mineral favorability is bounded within longitudes 7°51 ' E to 8° 12 ' E and latitudes 11° 46 ' N to 12° 30 ' N in the NE-SW directions. The trend cuts through Gwarzo, Shanono, Bagwai, Tsanyawa, Bichi and Kunchi.

show abstract

“…Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License rocks. The shape dimensions, and amplitude of an induced magnetic signature is a function of the orientation, geometry, size, depth, and magnetic susceptibility of the body as well as the intensity and inclination of the earth's magnetic field in the survey area (Biswas, 2018(Biswas, , 2016Biswas and Acharya, 2016).…”

Section: Introductionmentioning

confidence: 99%

Interpretation of high resolution aeromagnetic data to determine sedimentary thickness over part of Bida Basin, North Central Nigeria

Okwokwo¹,

Adetona²,

Adewumi³

et al. 2018

J. Geol. Min. Res.

View full text Add to dashboard Cite

This study focuses on the quantitative interpretation of aeromagnetic data to estimate the thickness of sediments over part of Bida Basin so as to identify possible areas of hydrocarbon potential. The study area covers an area of 24,200 km 2 located between latitude 8° 30ꞌN and 9° 30ꞌN and longitudes 5° 00ꞌE and 7° 00ꞌE. Aeromagnetic data in grid format containing eight sheets were analysed and interpreted. Polynomial fitting was used in regional/residual separation and this result to the residual field data that corresponds to the target source for further processing. Three depth estimating methods were employed in this study; Euler deconvolution, source parameter imaging and spectral depth analysis. Euler depth determination method reveals a maximum depth of 3.56 km around Mokwa and Batati areas. Shallow sources also exist around Pategi, Paiko, Izom and Lapai areas with an average depth ranging from 107.74 m to about 514.82 m. Source parameter imaging shows a deeper sedimentary thickness of 4.2 km in the same area with Euler deconvolution. Spectral depth analysis also showed a maximum sedimentary thickness of 3.50 km. It was found in the study that the maximum depths obtained might probably be sufficient enough for hydrocarbon maturation and gas accumulation. Further research using seismic reflection might be carried out in the areas where maximum depth was obtained.

show abstract

A very fast simulated annealing method for inversion of magnetic anomaly over semi-infinite vertical rod-type structure

Cited by 33 publications

References 50 publications

Inversion of Source Parameters from Magnetic Anomalies for Mineral/Ore Deposits Exploration Using Global Optimization Technique and Analysis of Uncertainty

Inversion of Source Parameters from Magnetic Anomalies for Mineral/Ore Deposits Exploration Using Global Optimization Technique and Analysis of Uncertainty

A reconnaisance study to delineate the potential mineral zones around the schist belt areas Of Kano State, Nigeria using airborne magnetic data

Interpretation of high resolution aeromagnetic data to determine sedimentary thickness over part of Bida Basin, North Central Nigeria

Contact Info

Product

Resources

About