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Laboratory Study on the Electrical Resistivity Characteristics with Contents of Clay Minerals  

Park Mi-Kyung (The Institute of Engineering Geosciences, Pukyong University)
Publication Information
Geophysics and Geophysical Exploration / v.8, no.3, 2005 , pp. 218-223 More about this Journal
Abstract
This study considers to electrical resistivity characteristics for clay minerals types and contents in fractured and fault zone. The electrical resistivity is measured for an artificial agar specimen with clay minerals instead of a natural rock. The artificial agar specimen with clay minerals was special worked in study. The clay minerals used are Kaolinite and Montmorillonite in test, the clay mineral contents increases until $0\~40\%$ to the same specimen. As results, the electrical resistivity of the specimen decreased gradually as the clay mineral contents increases for all types of clay minerals. Montmorillonite shows remarkably lower resistivity than Kaolinite, although its clay content is fewer than that of Kaolinite. Also, a proposed experimental expression shows a good correlation coefficient as high as 0.89 or more in all clay minerals.
Keywords
Electrical resistivity; agar specimen; clay mineral contents; Kaolinite; Montmorillonite;
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