Ground Penetrating Radar (GPR) is a fast geophysical method that allows precise and effective recognition of geological formations below the surface. Dry or moder-ately wet solid rocks are …

PDF | An integrated geophysical survey was carried out in a new dwelling area at 15-May town, southeast Cairo, Egypt. ... seen clear ly in many secti ons and in a limestone quarry. very near to ...

This study aims to investigate the presence, thickness, and vertical and lateral extension of limestone and basalt in quarry sites by geophysical methods and to perform 3D …

limestone quarry near 'Rieu de W archin' stream at Gaurain-Ramecroix. ... In this study, we used geophysical methods such as ground penetrating radar (GPR) and magnetic gradiometer to detect ...

limestone, in particular the Great Scar Limestone group including the Gordale and Cove formations, seen in the quarry and the Kilnsey Formation which outcrops to the far northwest of the quarry. According to Hafren Water (2003), boreholes drilled within the quarry Fracture aperture and fill 2.

review of the geophysical methods to detect these, the reader is referred to James (2014). This paper will discuss specifically the application of the electrical resistivity tomography (ERT) to detect large scale voids at the example of a limestone quarry in Northland, New Zealand. 2 DETECTING VOIDS AT WILSONVILLE LIMESTONE QUARRY – A CASE STUDY

Azimuthal radiation patterns of the 0.2–3 Hz Rayleigh and Love waves are diagnostic of two proposed mechanisms for non-isotropic radiation from quarry blasts. …

limestone quarry products is therefore, limited to local construction industry. ... To monitor these structures, geophysical methods may offer an interesting compromise between the operating cost, ...

Request PDF | Ambiguities in Geophysical interpretation during fracture detection-case study from a limestone quarry (Lower Silesia Region, Poland) | Geophysical studies were conducted over a ...

Water seepage to ground surface at a limestone quarry located at Wadi Garawy about 20 km southeast of Helwan city in Egypt posed a real threat to the mining activity at the quarry. ... is known to be very dry for decades and away from …

important to help the quarry operator to identify the only area that will be actively used for extraction. This paper presents the technique used in determining the thickness of the overburden for quarry prospecting using a geophysical method called as seismic refraction method. The non-destructive technique of seismic refraction was

Ambiguities in geophysical interpretation during fracture detection—case study from a limestone quarry (Lower Silesia Region, Poland) 1 February 2016 | Near Surface Geophysics, Vol. 14, No. 4 ..., (2006), "Multiconfiguration GPR measurements for geometric fracture characterization in limestone cliffs (Alps)," GEOPHYSICS 71: B85-B92. https ...

undertakes geophysical survey throughout the country to find concealed mineral ... It was found that water samples analysed from the vicinity of limestone quarry and cement plant showed an ...

Near Surface Geophysics, 2004, 150-159 Lithological interpretation of the spectral dielectric properties of limestone T. Fechner1, F. D. Börner2*, T. Richter3, U. Yaramanci4, B. Weihnacht2 1 Dresden Groundwater Research Cenre, Meraner Str. 10, 01217 Dresden, Germany; now Innsbrucker Str. 12, A-6071 Aldrans, Austria 2 Dresden Groundwater Research Centre, …

geophysical methods reduces this uncertainty to some degree. Of course, even in an integrated ... limestone quarry, the detected fracture zones and kars tic features can be considered as the main ...

Geophysical modeling provides generalized and non-unique solutions to questions concerning the geometry of subsurface geologic relations. The non-uniqueness of these solutions is both a mathematical problem and one related to the multiplicity of sources that can cause geophysical anomalies. This feature is an implicit uncertainty

Near Surface Geophysical Techniques such as electrical resistivity tomography (ERT) is useful technique for delineating subsurface configurations such as stratigraphy, structural elements. ... 170 m above sea level, decreasing gradually to the southwest, down to 95 m. above sea level. Geologically, the Helwan limestone quarry belongs to the ...

Timely identifying unknown cavities below ground can minimize associated consequences, but there is no straightforward method to detect cavities. This paper aims to study the effectiveness of the application of different geophysical methods for detecting naturally formed subsurface cavities in lateritic deposits. A comparative summary of the effectiveness of various …

A suitable limestone discontinuity specimen was identified on a highwall recently exposed during blast excavation in the quarry. The discontinuity is dipping at 46.5° as shown …

The studied limestone in Bizerte region is taken from the abandoned limestone quarry of the company Bizerte Cements considered as sterile reserves due to its high silica content. ... behavior in depth is significant for the exploitation of a quarry allowing the control of the blasting operation in the quarry. Therefore, the geophysical data can ...

To promote the use of geophysical investigations even more, we need to address the purpose and expectations of the geophysical investigations, the awareness of method limitations and uncertainties of the different methods, and which standards and tools for interpretation and visualization are used.

Field surveys were conducted in a former quarry, Threshfield near Grassington in Yorkshire, United Kingdom. Solid geology in the site (figure 3a) consists of Carboniferous limestone, in …

A Ground Penetrating Radar (GPR) survey was conducted on the bench of a limestone quarry to detect and map a network of weathering. The investigated area is a rectangle of 16.60 m by 10.25m on the ...

Electrical resistivity tomography (ERT) is one geophysical method used for imaging underground cavities. The usefulness of this method is demonstrated with an example field study where this method has been used to detect …

ABSTRACT Electromagnetic signals from distant radio transmitters in the frequency range 15–250 kHz were measured to model an electrical resistivity structure beneath 7 profiles in the vicinity of the Karinu limestone quarry in Estonia with the aim to map the extent of the economically exploitable limestone. The resistivity models from a 2D inversion of …

Figure 6--(a) A photo of part of quarry face BSG3 containing six horizontal holes with steel rods, (b) GPR data, scaled and bandpass filtered, with the 400 MHz antennas along 6-m line on the bench 1 m behind the quarry face, and (c) GPR data after the deterministic deconvolution.. In contrast, after including deterministic deconvolution in the processing flow (Figure 6c), the …

A surface geophysical method, the azimuthal square array resistivity technique, ... To the west of the field is a disused section of Spaunton Quarry from which limestone had been extracted. The entire site had three fields, each field separated by trees and barbed wires. The survey was conducted on the northernmost field.

By integrating the results of these analyses, the research provided recommendations for safe slope design, excavation methods, and potential reinforcement …

Here, we show how a combination of electrical resistivity tomography (ERT) surveys, high-resolution seismic refraction surveys, and boreholes have been used to map limestone units …

SPELEOLOGY, GEOPHYSICS: 2020: During this measurement, it was necessary to determine for further mining areas with quality and lower quality limestone, which is not suitable for further economic processing. In addition, there were a number of cavities in the quarry, and these should be kept in mind when deploying blasting charges.