Economic and Environmental Geology (자원환경지질)
- Volume 28 Issue 5
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- Pages.469-480
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- 1995
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- 1225-7281(pISSN)
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- 2288-7962(eISSN)
Studies on the Geological Environment of the Nanjido Waste Disposal Site: Gravity and Magnetic Investigations
난지도 매립지 및 그 주변의 지질환경 연구: 중력 및 자력탐사
- Kwon, Byung-Doo (Dept. of Earth Science, Seoul National Univ.) ;
- Kim, Cha-Seop (Dept. of Earth Science, Seoul National Univ.) ;
- Chung, Ho-Joon (Dept. of Earth Science, Seoul National Univ.) ;
- Oh, Seok-Hoon (Dept. of Earth Science, Seoul National Univ.)
- Received : 1995.09.21
- Published : 1995.10.30
Abstract
Gravity and magnetic surveys were carried out to investigate the three-dimensional configuration and characteristics of the landfills at Nanjido waste disposal site. For terrain correction and three-dimensional density inversion of gravity data an algorithm, which calculates the gravity effect of a three-dimensional body by using the solid angle method, is developed. This algorithm has been proved to give more accurate terrain correction values for the small survey area having varied topography like Nanjido site as compared with widely used methods such as Hammer's method and multiquadric equation method. Density inversion of gravity anomaly data gives very useful information about the lateral and vertical variation of the landfills, which can be used to discriminate the kinds of wastes. The average density of filled materials appears to be
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