SUMMARY

Applying the method of 2-D resistivity sounding for dividing weakly differentiated geoelectrical sections

Bùi Tiến Bình

At present, the methods of resistivity sounding (both 1-D and 2-D) have been applied broadly in order to divide the electrical resistivity of different soil layers. The 2-D method with higher resolution has been showing its capacity of dividing soil layers with little differentiation in resistivity, such as in sections of sand and clay layers containing salted water.

This article presents the results of applying a 2-D electrical sounding method (called also as electrical tomography) for establishing geoelectrical sections in the Phước Lộc Village, Long Hóa Commune, Cần Giờ District, Hồ Chí Minh City, that show the advantage of the 2-D electrical method over the traditional 1-D one in the determination of boundaries between soil layers having weakly differentiated resistivity. Besides, these results show also the potential capacity of resistivity sounding methods in geological studies.

Người biên tập: Nguyễn Tuấn Phong.