The main target of this study is to detect the ancient archaeological remains by using Helicopter... more The main target of this study is to detect the ancient archaeological remains by using Helicopter Electromagnetic Method (HEM) and Ground Penetrating Radar (GPR) survey at “Tell Defenneh” Area, which is located in the west bank of Suez Canal at the northeastern Desert of Egypt. It is far about 15 Km to the northeast of “Qantara Gharb” town which is a part of “Ismailia” governorate.
This area is full of different archaeological features, because it is located in the ancient international trade-military road (Horus Road). This road connected ancient Egypt with its neighboring eastern countries. In additional to that, this area used to protect ancient Egypt from invaders, who came from the East. HEM has been used to detect the conductivity anomalies over the study area.
These anomalies are useful to show the different and distinctive places which can be focused, on small scalar, by GPR to identify it more clearly in the study area. According to the HEM data, it was noticed that there are distinctive geometric shape with very low resistivity or very high conductivity values in the northeastern part of the study area. These data have been supported by GPR survey focused on this part. It was suggested that these anomalies may be due to old man-made mud bricks that was customary used in the building in ancient times. The subsequently archaeological excavations, which are based on these interpreted data as a guide and proof, revealed that the remains belong to the citadel of pharaoh “Psamtik I” (664-610 BC). This result confirms that the incorporated geophysical methods can be efficiently supplied in the archaeological prospection in Egypt.
ABSTRACT The study area lies in south Egypt on the west bank of the River Nile about 12 km north ... more ABSTRACT The study area lies in south Egypt on the west bank of the River Nile about 12 km north to the Aswan City. The aim of the present study is a trial to investigate subsurface structure conditions, to determine the dynamic characteristics of the subsurface rocks and to study the effect of the near earthquake activities on the proposed location of Aswan New City. In this study nineteen seismic refraction P- and S-waves profiles were conducted. The output results include velocities of P- and S-wave and the thickness of each layer. The bulk density of soil layers was calculated from determined P-wave values. The measured shear wave velocity and bulk density for each layer were used to compute the maximum shear modulus. These parameters for each layer are used as input data to compute the responses of horizontally layered soil profiles subjected to bedrock input motion from strong earthquake using EERA program. The obtained response values of soil layers are represented by the surface acceleration, from which response spectra with damping ratio of 5% are obtained, surface Fourier amplitude spectra, amplification ratio between rock outcrop and free surface, and the shear stresses and strains characteristics at the sublayer No. 2 in all selected profiles sites. The output of this study is very important for solving the problems, which associated with the construction of various civil engineering purposes and for earthquake resistance structure design.
... 3 shows that the seismicity is concentrated in five main cluster zones, (1) Gebel Marawa, (2)... more ... 3 shows that the seismicity is concentrated in five main cluster zones, (1) Gebel Marawa, (2) East of Gebel Marawa, (3) Khor El-Ramla, (4) Old ... in Kom Ombo may be related to the Gebel El-Barqa fault that is one of western desert fault system (Fat-Helbary and Mohamed, 2004). ...
In the present study, the calculation of site response models was performed using standard equiva... more In the present study, the calculation of site response models was performed using standard equivalent linear analysis on the proposed Tushka new city site. Soil parameters and properties for analysis were derived from shallow seismic refraction analysis. In this study, 31 seismic refraction P-and S- wave profiles were conducted. The output results include velocities of P-and S-wave and the thickness of each layer. The bulk density of soil layers was calculated from determined P-wave values. The measured shear wave velocity and bulk density for each layer were used to compute the maximum shear modulus. These parameters for each layer are used as input data and one set of rock outcrop motions after removing the free surface effect was used as input motion at the bottom of the soil profiles to model the seismic response at the profile sites. The obtained response values of soil layers are represented by the surface acceleration, from which response spectra with damping ratio of 5% are ...
Abu-Dabbab area is located in the western Red Sea coast at the Eastern Desert of Egypt. This area... more Abu-Dabbab area is located in the western Red Sea coast at the Eastern Desert of Egypt. This area is characterized by the presence of different geological units and high seismic activity. It is one of the seismic source zones in Egypt. The purpose of this research is the detection of the structural setting and rock units by using the Helicopter Electromagnetic (HEM) technique and its relation to the seismic activity at Abu-Dabbab area. The spatial distribution of earthquakes recorded by the Egyptian National Seismic Network (ENSN) was used to study the seismic activity along the detected structures at the study area. The results of this work show that there is a resistivity variation over the study area. This variation may be due to the difference in the rock composition and its conductivities. In addition, the places of high resistivity values clearly show sites of faults. The sites of approximated values confirm the presence and expansion of the different rock units which are mixed in their electrical properties. The sites of the detected faults are identifying with the seismic activity of the area.
The main target of this study is to detect the ancient archaeological remains by using Helicopter... more The main target of this study is to detect the ancient archaeological remains by using Helicopter Electromagnetic Method (HEM) and Ground Penetrating Radar (GPR) survey at “Tell Defenneh” Area, which is located in the west bank of Suez Canal at the northeastern Desert of Egypt. It is far about 15 Km to the northeast of “Qantara Gharb” town which is a part of “Ismailia” governorate.
This area is full of different archaeological features, because it is located in the ancient international trade-military road (Horus Road). This road connected ancient Egypt with its neighboring eastern countries. In additional to that, this area used to protect ancient Egypt from invaders, who came from the East. HEM has been used to detect the conductivity anomalies over the study area.
These anomalies are useful to show the different and distinctive places which can be focused, on small scalar, by GPR to identify it more clearly in the study area. According to the HEM data, it was noticed that there are distinctive geometric shape with very low resistivity or very high conductivity values in the northeastern part of the study area. These data have been supported by GPR survey focused on this part. It was suggested that these anomalies may be due to old man-made mud bricks that was customary used in the building in ancient times. The subsequently archaeological excavations, which are based on these interpreted data as a guide and proof, revealed that the remains belong to the citadel of pharaoh “Psamtik I” (664-610 BC). This result confirms that the incorporated geophysical methods can be efficiently supplied in the archaeological prospection in Egypt.
ABSTRACT The study area lies in south Egypt on the west bank of the River Nile about 12 km north ... more ABSTRACT The study area lies in south Egypt on the west bank of the River Nile about 12 km north to the Aswan City. The aim of the present study is a trial to investigate subsurface structure conditions, to determine the dynamic characteristics of the subsurface rocks and to study the effect of the near earthquake activities on the proposed location of Aswan New City. In this study nineteen seismic refraction P- and S-waves profiles were conducted. The output results include velocities of P- and S-wave and the thickness of each layer. The bulk density of soil layers was calculated from determined P-wave values. The measured shear wave velocity and bulk density for each layer were used to compute the maximum shear modulus. These parameters for each layer are used as input data to compute the responses of horizontally layered soil profiles subjected to bedrock input motion from strong earthquake using EERA program. The obtained response values of soil layers are represented by the surface acceleration, from which response spectra with damping ratio of 5% are obtained, surface Fourier amplitude spectra, amplification ratio between rock outcrop and free surface, and the shear stresses and strains characteristics at the sublayer No. 2 in all selected profiles sites. The output of this study is very important for solving the problems, which associated with the construction of various civil engineering purposes and for earthquake resistance structure design.
... 3 shows that the seismicity is concentrated in five main cluster zones, (1) Gebel Marawa, (2)... more ... 3 shows that the seismicity is concentrated in five main cluster zones, (1) Gebel Marawa, (2) East of Gebel Marawa, (3) Khor El-Ramla, (4) Old ... in Kom Ombo may be related to the Gebel El-Barqa fault that is one of western desert fault system (Fat-Helbary and Mohamed, 2004). ...
In the present study, the calculation of site response models was performed using standard equiva... more In the present study, the calculation of site response models was performed using standard equivalent linear analysis on the proposed Tushka new city site. Soil parameters and properties for analysis were derived from shallow seismic refraction analysis. In this study, 31 seismic refraction P-and S- wave profiles were conducted. The output results include velocities of P-and S-wave and the thickness of each layer. The bulk density of soil layers was calculated from determined P-wave values. The measured shear wave velocity and bulk density for each layer were used to compute the maximum shear modulus. These parameters for each layer are used as input data and one set of rock outcrop motions after removing the free surface effect was used as input motion at the bottom of the soil profiles to model the seismic response at the profile sites. The obtained response values of soil layers are represented by the surface acceleration, from which response spectra with damping ratio of 5% are ...
Abu-Dabbab area is located in the western Red Sea coast at the Eastern Desert of Egypt. This area... more Abu-Dabbab area is located in the western Red Sea coast at the Eastern Desert of Egypt. This area is characterized by the presence of different geological units and high seismic activity. It is one of the seismic source zones in Egypt. The purpose of this research is the detection of the structural setting and rock units by using the Helicopter Electromagnetic (HEM) technique and its relation to the seismic activity at Abu-Dabbab area. The spatial distribution of earthquakes recorded by the Egyptian National Seismic Network (ENSN) was used to study the seismic activity along the detected structures at the study area. The results of this work show that there is a resistivity variation over the study area. This variation may be due to the difference in the rock composition and its conductivities. In addition, the places of high resistivity values clearly show sites of faults. The sites of approximated values confirm the presence and expansion of the different rock units which are mixed in their electrical properties. The sites of the detected faults are identifying with the seismic activity of the area.
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This area is full of different archaeological features, because it is located in the ancient international trade-military road (Horus Road). This road connected ancient Egypt with its neighboring eastern countries. In additional to that, this area used to protect ancient Egypt from invaders, who came from the East. HEM has been used to detect the conductivity anomalies over the study area.
These anomalies are useful to show the different and distinctive places which can be focused, on small scalar, by GPR to identify it more clearly in the study area. According to the HEM data, it was noticed that there are distinctive geometric shape with very low resistivity or very high conductivity values in the northeastern part of the study area. These data have been supported by GPR survey focused on this part. It was suggested that these anomalies may be due to old man-made mud bricks that was customary used in the building in ancient times. The subsequently archaeological excavations, which are based on these interpreted data as a guide and proof, revealed that the remains belong to the citadel of pharaoh “Psamtik I” (664-610 BC). This result confirms that the incorporated geophysical methods can be efficiently supplied in the archaeological prospection in Egypt.
This area is full of different archaeological features, because it is located in the ancient international trade-military road (Horus Road). This road connected ancient Egypt with its neighboring eastern countries. In additional to that, this area used to protect ancient Egypt from invaders, who came from the East. HEM has been used to detect the conductivity anomalies over the study area.
These anomalies are useful to show the different and distinctive places which can be focused, on small scalar, by GPR to identify it more clearly in the study area. According to the HEM data, it was noticed that there are distinctive geometric shape with very low resistivity or very high conductivity values in the northeastern part of the study area. These data have been supported by GPR survey focused on this part. It was suggested that these anomalies may be due to old man-made mud bricks that was customary used in the building in ancient times. The subsequently archaeological excavations, which are based on these interpreted data as a guide and proof, revealed that the remains belong to the citadel of pharaoh “Psamtik I” (664-610 BC). This result confirms that the incorporated geophysical methods can be efficiently supplied in the archaeological prospection in Egypt.