High-resolution shallow reflection seismic integrated with other geophysical methods for hydrogeological prospecting in the Nylsvley Nature Reserve, South Africa

Onyebueke, Emmanuel; Manzi, M.; Durrheim, Raymond

doi:10.1088/1742-2140/aadbe3

Cited by 17 publications

(9 citation statements)

References 26 publications

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“…Typically, the recorded signals are subjected to significant amounts of signal processing before they are ready to be interpreted and this is a significant area of active research within industry and academia. In general, the more complex the geology of the area under study, the more sophisticated are the techniques required to remove noise and increase resolution [6,16].…”

Section: Matherials and Methodsmentioning

confidence: 99%

Seismic explorations on the Bela Voda locality near Berovo

Doneva¹

2020

GEOL

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This paper presents the results from the explorations conducted on the locality Bela Voda, village Dvorište near Berovo. The purpose of the site survey is to determine the potential of the water supplying with underground water according to the represented structural-tectonic and hydrogeological structure, locate and prognostically design exploratory wells for water supply according to the indicated potential, conditions and opportunities for ground water capture. For the needs of the geophysical measurements, field hydrogeological reconnaissance of the terrain has been performed previously. Hydrogeological research and geophysical measurements have been conducted on the locations where hydrogeological characteristics of the terrain and the presence of the types of water bearing environments within the research area have been defined and explained. The investigations are performed by means of reflective seismic scanning of the structural-tectonic assemblage on the terrain by representative investigative profiles and analysis of the known geological data. 10 investigative profiles (RL) with the total length of 1.5 km were made, of which 2 in the longitudinal direction of the Bela Voda river and 8 in the transverse or normal profiles of the river itself. The field scanning along the investigative profiles was performed with a seismic wave excitation step and a 5 m distance of geophones and an offset of 10 m. The obtained results from the performed geophysical investigations have confirmed that there is a small zone of Upper Jurassic granite in which a fissure type of aquifer with fissure porosity is formed. For the construction of well exploration (exploitation boreholes) there is a limited potential area, and four potential locations are proposed.

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Section: Matherials and Methodsmentioning

confidence: 99%

Seismic explorations on the Bela Voda locality near Berovo

Doneva¹

2020

GEOL

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“…Liang et al used high-resolution shallow seismic method to detect and identify blind faults in the Yellow River, determine the distribution and activity of faults, and predict the possible geological safety risks [38]. Onyebueke et al used the high-resolution reflection seismic method to detect and investigate the active faults in Nilsley Nature Reserve, South Africa, and accurately identified and studied the regional active faults [39].…”

Section: Research Progress Of Urban Underground Hidden Strata Identificationmentioning

confidence: 99%

Research on Technology and Application of Buried Faults Identification in Urban Underground Space

al.¹

2021

converter

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With theurbanization rate's rising and three-dimensional expansion and development of urban, the identification of underground buried faults has become the key factor of earthquake risk in urban underground space and surface area. As a typical method of detecting blind faults in underground space, shallow seismic prospecting technology plays an important role in judging and avoiding potential risks such as underground faults in the process of urban expansion and site selection. In this paper, shallow seismic prospecting technology is adopted, and optimized processing technologies such as parameter test, tomographic correction, pre-stack denoising, fidelity and consistency processing, correction iteration, migration imaging, and time-depth relationship deduction are adopted. Underground faults are identified and interpreted in the studied urban area, and fault risk assessment is carried out based on fault characteristics, scale, distribution and overlying strata, thus providing suggestions for regional pattern and construction of urban planning.

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“…A secondary aim was to map geological site features (e.g. lithologies and fractures) that could have a direct impact on mining operations which would ultimately facilitate effective mine planning (Onyebueke et al., 2018). The most significant feature that geophysical methods bring to mineral exploration and mining is the ability to map complex and subsurface geological features at greater resolution than any other geological method (Malehmir et al., 2012).…”

Section: Introductionmentioning

confidence: 99%

Integrated geophysical methods for boulder delineation to improve mining

Gomo

Rapetsoa

Manzi

et al. 2023

Geophysical Prospecting

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Near‐surface boulders can pose serious challenges to opencast mining. They often introduce complexities, delays in drilling, blasting and excavation programmes, which subsequently decrease mining efficiency, increase mining risks and costs. The location of subsurface boulders and the identification of other geological features that may impact mining activities (e.g. fractures, the presence of iron‐rich ultramafic pegmatites and the variation in weathering across a mining region) are necessary to reduce the challenges posed by these geological features, therefore optimizing mining efficiency. In this study, magnetics, electrical resistivity tomography, seismic refraction tomography, ground penetrating radar and borehole data are integrated for boulder delineation and mapping of other geological features that may impact mining using an unmined section at Tharisa Mine, Bushveld Complex (South Africa), as a test site. The results obtained from the different geophysical techniques are found to complement each other and successfully delineate boulders, fractures, iron‐rich ultramafic pegmatites and the variation in weathering and layering across the area. The incorporation of geophysical results can thus improve mining efficiency, while reducing mining risks and costs.

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High-resolution shallow reflection seismic integrated with other geophysical methods for hydrogeological prospecting in the Nylsvley Nature Reserve, South Africa

Cited by 17 publications

References 26 publications

Seismic explorations on the Bela Voda locality near Berovo

Seismic explorations on the Bela Voda locality near Berovo

Research on Technology and Application of Buried Faults Identification in Urban Underground Space

Integrated geophysical methods for boulder delineation to improve mining

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