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http://dx.doi.org/10.5467/JKESS.2009.30.4.401

Geophysical Well-log Analysis of Andesite and Sedimentary Rocks in Myodo-dong, Yeosu, Southern Korea  

Leem, Kook-Mook (Department of Earth and Environmental Sciences, Chungnam National University)
Park, Jong-Oh (Department of Geotechnical Design Engineering, Daejeon University)
Yu, Young-Chul (Department of Earth and Environmental Sciences, Chungnam National University)
Song, Moo-Young (Department of Earth and Environmental Sciences, Chungnam National University)
Publication Information
Journal of the Korean earth science society / v.30, no.4, 2009 , pp. 401-408 More about this Journal
Abstract
We carried out the Suspension PS log and gamma-gamma log in andesite and sedimentary rocks distributed near the area of Myodo-dong, Yeosu. The main purpose of this study was to find out the distribution of seismic velocities and densities and to analyze the correlation of the two rocks by comparing their geophysical well logs with rock cores. The distributions of P and S-wave velocities for two rocks represented in the study area showed a difference of about 2,000 m/sec and 1,500 m/sec with depth, respectively, while the distributions of densities had a discrepancy of about $0.35g/cm^3$ with depth. However, the results of geophysical well logs analysis were similar to the two rocks. Consequently, it is clear that these results are interpreted as a difference due to weathering rather than rock type. In particular, the RQD values showed a good correlation to geophysical well log data.
Keywords
Suspension PS log; gamma-gamma log; seismic velocities; densities; correlation; well logs;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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