Study of geological sedimentary structures of Mekong river banks by ground penetrating radar: forecasting avulsion-prone zones

• Autorzy: Nguyen V.G. , Ziętek J. , Nguyen B.D. , Karczewski J. , Gołębiowski T.
• Języki publikacji: EN

Abstrakty

EN

Ground Penetrating Radar (GPR) is a high-resolution near-surface geophysical technique which employs radio waves to map structures and features buried in the ground (or in man-made structures). The results of GPR survey can also be processed and interpreted to obtain physical parameters of rock formation such as dielectric permittivity, electrical conductivity, velocity of electromagnetic waves, attenuation, and other. The georadar method provides continuous graphic format for recorded data which permits rapid semi-quantitative in-field analysis. The paper presents results of a successful application of a Canadian instrument Pulse EKKO 100A for the near-surface geological sedimentary structure investigation in Vietnam. The interfaces, fractures, weakness zones etc. in the geological formation on the Mekong river banks were located and interpreted by georadar cross-sections. The paper presents also results of modelling of electromagnetic field distribution by means of Finite Difference Time Domain method for the Khach San profile at the Mekong river banks.

Słowa kluczowe

EN

georadar; river banks; avulsion-prone zones; electromagnetic modelling

• Wydawca: Instytut Geofizyki PAN
• Czasopismo: Acta Geophysica Polonica
• Rocznik: 2005
• Tom: Vol. 53, nr 2
• Strony: 167--181
• Opis fizyczny: Bibliogr. 14 poz.

Twórcy

autor

Nguyen V.G.

• National Centre for Natural Science and Technology of Vietnam, Institute of Geophysics, Box 411, Buu Dien Bo Ho, Hanoi, Vietnam

autor

Ziętek J.

• Department of Geophysics, Faculty of Geology, Geophysics and Environmental Protection AGH University of Science and Technology Aleja Mickiewicza 30, 30-059 Kraków, Poland

autor

Nguyen B.D.

• National Centre for Natural Science and Technology of Vietnam, Institute of Geophysics, Box 411, Buu Dien Bo Ho, Hanoi, Vietnam

autor

Karczewski J.

• Department of Geophysics, Faculty of Geology, Geophysics and Environmental Protection AGH University of Science and Technology Aleja Mickiewicza 30, 30-059 Kraków, Poland

autor

Gołębiowski T.

• Department of Geophysics, Faculty of Geology, Geophysics and Environmental Protection AGH University of Science and Technology Aleja Mickiewicza 30, 30-059 Kraków, Poland

Bibliografia

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