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Applications of Aeromagnetic and Electrical Resistivity Data for Mapping Spatial Distribution of Groundwater Potentials of Dutse, Jigawa State, Nigeria

Chifu E. Ndikilar, B. Y. Idi, B.S. Terhemba, I. I. Idowu, S.S. Abdullahi
2019 Modern Applied Science  
In this work, spectral analysis of aeromagnetic data was used to map the topography of the magnetic crystalline fresh basement underlying the water bearing aquifer of Dutse, Jigawa State Nigeria.  ...  Vertical electric sounding technique was used to detect the spatial distribution of the depths to the top of the aquifer within the same area.  ...  The power spectrum can be used to statistically estimate the depth to the top and bottom of the magnetic source.  ... 
doi:10.5539/mas.v13n2p11 fatcat:vabw5zzxcvhzjmwvwwzdcln7vu

Mineral potential targeting and resource assessment based on 3D geological modeling in Luanchuan region, China

Gongwen Wang, Shouting Zhang, Changhai Yan, Yaowu Song, Yue Sun, Dong Li, Fengming Xu
2011 Computers & Geosciences  
The multifractal method, principal component analysis, and power spectrum-area method were used to separate regional variability from local variability in the geochemical data.  ...  A 3D geological model was constructed from various geological maps, cross sections, boreholes, and gravity and magnetic data.  ...  Gary Raines for providing advice regarding PNN analysis. This paper was greatly improved by the reviews of Dr. K. Sprague and the anonymous reviewer.  ... 
doi:10.1016/j.cageo.2011.05.007 fatcat:n54rjo2lsrcffccvaxe7zq2hqa

Quantization Within the Spectral and Spatial Transforms of Sampled Source Contributions to Geophysical Scalar Potential Fields and Its Significance for Education, Research, and Resource Exploration

Andrew M McDermott, Jeffrey R Chiarenzelli
2013 Modern Applied Science  
Conventional application of fast Fourier transform (FFT) methods in the spectral separation and analysis of surface gravity and magnetization measurements has evolved from the traditional perspective that  ...  Analysis based upon estimates of spatial characteristics for sources represented within the array elements contribute to reduced or minimized ambiguity in interpretations concerned with equivalent-source  ...  , or used directly to supply estimated values for use in modeling and inversion studies.  ... 
doi:10.5539/mas.v7n8p31 fatcat:zzetgvuhj5hijbkwejngwhfsbi

Magnetic Basement Depth Re-Evaluation of Naraguta and Environs North Central Nigeria, Using 3-D Euler Deconvolution

Opara A.I., Emberga T.T., Oparaku O.I., Essien A.G., Onyewuchi R.A., Echetama H.N., Muze N.E., Onwe R.M
2015 American Journal of Mining and Metallurgy  
Similarly, magnetic basement depth estimates using 3-D Euler deconvolution revealed a magnetic basement depth range of 0.5 -2.5km.  ...  Structural analysis of these shallow anomalies using 3-D Euler deconvolution with structural index values ranging from 0-3, revealed three main structural models which include spheres, horizontal pipes  ...  It now becomes imperative that depth estimation from those anomalies provide useful clues to approximate estimation of sedimentary thickness.  ... 
doi:10.12691/ajmm-3-2-1 fatcat:exlkm34pqneixkpgubnh2cp7h4

A Demonstration of the Application of Quantized Spatial Transforms in the Scaled and Optimized Separation of Scalar Potential Source Contributions for Use in Education, Research and Resource Exploration

Andrew M. McDermott, Jeffrey R. Chiarenzelli
2014 Earth Science Research  
The depth, spatial extent, and density or magnetization associated with these contributions can be estimated directly from the scaled views.  ...  Anomalies within FFT/IFFT filtered spatial residuals from a transformed digital surface are defined in terms of localized reference levels over scaled central sub-regions of a surveyed area.  ...  These tools provided for the estimation of values related to the depth, size, and density or magnetization of these sources (cf. Sharma, 1997) .  ... 
doi:10.5539/esr.v3n2p1 fatcat:u5x7maurbbathan2zu4xfbq2kq

Geomagnetic inversion for delineation of ore deposits in chenar mine

2020 Physics & Astronomy International Journal  
According to the dimensions of the magnetic halos, our geophysical result estimates the ore deposit to be about two and a half million tons for three of the massifs in the Eastern part and 250 thousand  ...  The geomagnetic inversion analysis was done using GeoSoft® software.  ...  We would like to thank our colleagues in the GeoMine Company of Iran, North Drilling company of Iran, and International Institute of Earthquake Engineering and Seismology for their useful help in this  ... 
doi:10.15406/paij.2020.04.00218 fatcat:cfps6ej6izdejhkwmznmuv3tty

Performance of Two Different Flight Configurations for Drone-Borne Magnetic Data

Filippo Accomando, Andrea Vitale, Antonello Bonfante, Maurizio Buonanno, Giovanni Florio
2021 Sensors  
We studied this problem by conducting two drone-borne magnetic surveys using a prototype system based on a cesium-vapor magnetometer with a 1000 Hz sampling frequency.  ...  Drone-generated noise was filtered according to a CWT analysis, and both the spectral characteristics and the modelled source parameters resulted analogously to that of a ground magnetic dataset in the  ...  The aerial surveys were planned and conducted by using the UgCS PRO software. We warmly thank SPH Engineering for the "Educational" conditions under which we could use their product.  ... 
doi:10.3390/s21175736 pmid:34502628 fatcat:tej663mpdretjikkgkrrcl53du

Depth estimates of anomalous subsurface sources using 2D/3D modeling of potential field data: implications for groundwater dynamics in the Ziway-Shala Lakes Basin, Central Main Ethiopian Rift

Hailemichael Kebede, Abera Alemu, Dessie Nedaw, Shimeles Fisseha
2021 Heliyon  
Finally, the gravity power spectral analysis resulted in two depth estimates, 1.53 km and 2.87 km which approximate the positions of two density interfaces.  ...  The main focus of this paper is mapping geometries of the major lithological and structural units of the shallow subsurface using gravity and magnetic data.  ...  These depth estimates recovered from the joint gravity/magnetic 2D modeling are consistent with the automated depth-to-source estimates made using Spectral Analysis, 2D Werner De-convolution and Source  ... 
doi:10.1016/j.heliyon.2021.e06843 pmid:33981897 pmcid:PMC8085713 fatcat:47jajmg4o5drjgzcoaj4umjs4e

NOAA Marine Geophysical Data and a GEBCO Grid for the Topographical Analysis of Japanese Archipelago by Means of GRASS GIS and GDAL Library

Polina Lemenkova
2020 Geomatics and Environmental Engineering  
The map of the magnetic anomalies of Japan (Fig. 5) shows the magnetic anomalies zone, which is one of the three magnetic anomalies zones of the Pacific Ocean forming a system of ancient magnetic anomalies  ...  Estimating and visualizing a slope aspect and steepness is useful for the analysis of such hazardous geological parameters as soils creep, debris avalanching and landslides [70] .  ... 
doi:10.7494/geom.2020.14.4.25 fatcat:ihnvmqya7zbujfcer5kdyw524m

Detection and Classification of Multi-magnetic Targets Using Mask-RCNN

Zhijian Zhou, Meng Zhang, Jiefu Chen, Xuqing Wu
2020 IEEE Access  
Wynn [8] proposed a method to estimate the position and magnetic moment of the target by using five independent equations of the magnetic gradient tensor.  ...  , two magnetic targets separated by magnetic anomalies, two magnetic targets with close distances, and two different depths.  ... 
doi:10.1109/access.2020.3030676 fatcat:ukxp5p6darhixkgqemb3dncgji

Using of remote sensing and aeromagnetic data for predicting potential areas of hydrothermal mineral deposits in the Central Eastern Desert of Egypt

Mohamed Ismail Abdelkareem
2018 Remote Sensing  
Moreover, processing of the AMG using Standard Euler deconvolution and residual magnetic anomalies successfully revealed the subsurface structural features.  ...  Using band ratios and oriented principal component analysis (PCA) on OLI data allowed delineating hydrothermal alteration zones (HAZs) and highlighted structural discontinuity.  ...  ferent spatial analysis techniques.  ... 
doi:10.18282/rs.v7i1.112 fatcat:hn3wqeb3tffhdpeubb3d4pycpi

Oceanic mantle gravimetric response to the seafloor spreading of the Southwest Sub-basin, South China Sea

Chuanchuan Lü, Tianyao Hao, Yongjian Yao, Jian Xing, Xuelin Qiu
2016 Geological Journal  
We acquired RMA from newly updated free-air gravity anomaly by incorporating abundant geophysical evidences, such as the International Ocean Drilling Program expedition 349, the interpretation of 10 seismic  ...  The shaded area is our study region with MCS constraints, the red solid lines are magnetic isochrons, and the red dashed line is fossil spreading centre. (b) Residual mantle anomaly of the SWSB.  ...  Figures were drawn using the GMT software of Wessel (1998) , and the Moho Depth calculation in gravity isostasy was inverted by using the LithoFlex tool of Braitenberg et al. (2007) .  ... 
doi:10.1002/gj.2799 fatcat:xhyvhs5555bezpazup5ubri4im

Enhancement of Magnetic Data by Stable Downward Continuation for UXO Application

Yaoguo Li, Sarah G. R. Devriese, Richard A. Krahenbuhl, Kristofer Davis
2013 IEEE Transactions on Geoscience and Remote Sensing  
Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining  ...  Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for  ...  His efforts were instrumental in construction and editing of the final report, as well as running the automated target detection by extended Euler deconvolution to help validate the enhanced magnetic data  ... 
doi:10.1109/tgrs.2012.2220146 fatcat:mwvq7lzpl5c4bfj5auy5togw4a

A new towed marine vector magnetometer: methods and results from a Central Pacific cruise

Martin Engels, Udo Barckhausen, Jeffrey S. Gee
2008 Geophysical Journal International  
These component data open additional analysis tools: the strike direction of magnetic lineations can be estimated from single profiles by either magnetic boundary strike ellipses in the space domain or  ...  Auto power spectra of the total field provide an approximate depth to the anomaly source or, if in obvious contradiction to the bathymetric depth, allow the detection of distortions, for example, by external  ...  Vector data allow the application of additional analysis tools. 5. Space domain analysis by magnetic boundary strike ellipses is a helpful and fast interpretation tool prior to 2-D modelling.  ... 
doi:10.1111/j.1365-246x.2007.03601.x fatcat:fngsrcp6kfgojkrqko7o2qokna

NOAA Marine Geophysical Data and a GEBCO Grid for the Topographical Analysis of Japanese Archipelago by Means of GRASS GIS and GDAL Library

Polina Lemenkova
2020 figshare.com  
Methodology includes data processing (projecting and import), mapping and spatial analysis.  ...  Data include bathymetric and geological grids in NetCDF format: GEBCO, EMAG2, GlobSed, marine free‐air gravity anomaly and EGM96.  ...  The map of the magnetic anomalies of Japan (Fig. 5) shows the magnetic anomalies zone, which is one of the three magnetic anomalies zones of the Pacific Ocean forming a system of ancient magnetic anomalies  ... 
doi:10.6084/m9.figshare.13251881.v1 fatcat:rjqy527yvnbmlavgtk3rcse7ee
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