학술논문
Three-point 電極 配列法을 利用한 電氣 比抵抗探査 模型硏究
이용수 2
- 영문명
- A model study for electrical resistivity method using three-point electrode array
- 발행기관
- 대한자원환경지질학회
- 저자명
- Kyung Duck Min(閔庚德) Chong Mi Kim(金宗美)
- 간행물 정보
- 『자원환경지질』14권 3호, 111~122쪽, 전체 12쪽
- 주제분류
- 자연과학 > 지질학
- 파일형태
- 발행일자
- 1981.09.30
4,240원
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국문 초록
영문 초록
This study is a model analysis for an effective application of the geophysical prospecting to the investigation of geological structures or useful resources, and the purpose of it is to research a property of the electrical resistivity prospecting, especially by using a Three-Point electrode array method.
In using the Three-Point electrode array method, it is theoretically assumed to choose the infinite for a distance between the two current electrodes, however it is impossible in applying to the practical field prospecting. Therefore this study was conducted for determination and presentation of a minimum appropriate distance between the two current electrodes by making a study on prospecting effect in the variation of distance between both the electrodes. In case that the ratios of the distance between the two current electrodes to that between the two potential electrodes are respectively chosen for 40 400, 5,000, the experimental data of this study showed that the minimum appropriate distance between the two current electrodes is forty times as much as that between two potential electrodes. In order to make clear a problem about prospecting depth which is essential to the data processing, it had been chosen equally to the distance between two potential electrodes. As a result of it, it was shown that the anomaly is appeared along the position of an assumed ore body. Consequently it was found out that the prospecting depth of the Three-Point electrode array method is the same as the distance between the two potential electrodes.
From the model experiment on the sheeting ore body(or linear structure) of horizontal, dipping of 30˚, 60˚ and vertical on the basis of above experimental condition, it was found out that the position and dip of assumed ore body could be inferred from the aspects of the equiresistivity curve. In consequence of performing out the simultaneous Normal and Reversal electrode movement, it was shown that the electrode movement of the Reversal forms the anomaly more clearly than that of Normal when the sheeting ore body is situated obliquely, therefore it could be ascertained that the electrode movement have to be performed simultaneously in the manner of Normal and Reversal. It was also exhibited that the aspect of the equiresistivity curve forms symmetrically when an assumed orebody (or linear structure) is situated horizontally or vertically, that is, symmetrically, and moreover that the aspect of the equiresistivity curve forms unsymmetrically when an assumed ore body (or linear structure) is situated obliquely. On the basis of these experimental analysis it is thought that it can be inferred from the aspect of equiresistivity curve whether an assumed ore body is obliquely situated or not.
목차
Abstract
1. 序論
2. 理論的 考察
3. 實驗
4. 實驗結果 및 考察
5. 野外調査
6. 結論
References
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