Economic and Environmental Geology (자원환경지질)
- Volume 11 Issue 2
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- Pages.81-88
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- 1978
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- 1225-7281(pISSN)
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- 2288-7962(eISSN)
Bottom sediments of the Asan bay, west coast of Korea
아산만일대(牙山灣一帶) 해저퇴적물(海底堆積物)에 대(對)하여
- Kim, Sung-woo (Marine Geology Section, Korea Institute for Geosciences and Minoral Resources) ;
- Chang, Jeong-hae (Department of Oceanography, College of Natural Sciences, Seoul National University) ;
- Park, Yong-ahn (Department of Oceanography, College of Natural Sciences, Seoul National University)
- Published : 1978.06.30
Abstract
Nearly 300 bottom sediments and 20 box-cores were sampled from the Asan bay. The central portion of the Asan bay is covered by sand, slightly gravelly sand and gravelly muddy sand. Between the central and marginal zones gravelly mud and slightly gravelly sandy mud are characteristically distributed. The gravel population in the sediments seems to be originated from the rocky bottom on the area near the bay because the gravel is angular and composed of the schist and gneiss. The quartz/feldspar ratio is about 3/2. It is considered to be that the amount of feldspar in this bay is much higher than that of any other areas in the Yellow Sea. This is considerd to be comparatively short distance of transport ion of these sediment from the provenance.
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