Browse > Article

A Short Seismic Reflection Survey for Delineating the Basement and the Upper Units of the Gomso Bay, Yellow Sea  

Kim Ji-Soo (Dept. of Earth & Environmental Sci. & Institute for Basic Science Research, Chungbuk National University)
Ryang Woo-Hun (Division of Science Education.Institute of Science Education, Chonbuk National University)
Han Soo-Hyung (Geogeny Consultant)
Kim Hak-Soo (Geogeny Consultant)
Publication Information
The Journal of Engineering Geology / v.16, no.2, 2006 , pp. 161-169 More about this Journal
Abstract
A short seismic reflection survey was performed to map the basement and the upper units in the Gomso Bay. This research was mainly aimed at clarifying the basement by improving the signal-to-noise ratio in data processing steps. The strategies employed in this research included enhancement of the signal interfered with large-amplitude noise, through pre- and post-stack processing such as time-variant filtering, bad trace edit, careful muting after f-k filter and NMO correction. The subsurface structure mapped from this survey mainly consists of the top of basement and the upper three units, which were well correlated to the result from the previously conducted MT survey. Furthermore seismic section clarifies approximately 30m deep subhorizontal event of the top of the basement, which was not shown in the central portion of the MT section due to data qualify.
Keywords
Gomso Bay; sedimentary unit; seismic reflection survey; reflection data processing;
Citations & Related Records
연도 인용수 순위
  • Reference
1 해양수산부, 1998, 우리나라의 갯벌
2 홍종국, 김기영, 김한준, 1999, 조간대지역에서의 고해상 탄성파탐사를 위한 파원 특성분석, 지구물리, 2, 2, pp.100-110
3 Choi, K.S., 2001, Late Quaternary Stratigraphy and Evolution of Tidal Deposits in Kyunggi Bay, West Coast of Korea. Ph.D. thesis, Seoul National University, Seoul, 225p
4 Chough, S.K. and Kim, D.C., 1981. Dispersal of fine- grained sediments in the southeastern Yellow Sea: A steady-state model. JSP., 51, pp.721-728
5 Kim, Y.H., Lee, H.J., Chun, S.S., Han, S.J., Chough, S.K., 1999. Holocene transgressive stratigraphy of a macrotidal flat in the southeatern Yellow Sea: Gomso Bay, Korea. J. Sediment. Res. 69, pp.328-337   DOI   ScienceOn
6 Milliman, J.D. et al., 1989. Sediments and sedimentary processes in the Yellow and East China Seas. In: Sedimentary facies in the active plate margin (eds., Taira, A. and Masuda, F.) Terra Sci. Publ. Comp., Tokyo, pp.233-249
7 Pirazzoli, P.A., 1991. World Atlas of Holocene Sea-Level Changes. Elsevier, New York, 300p
8 Lim, D.I. and Park, Y.A., 2003, Late Quaternary stratigraphy and evolution of a Korean tidal flat, Haenam Bay, southeastern Yellow Sea, Korea. Marine Geology, 193, pp.177-194   DOI   ScienceOn
9 고철환, 2001, 한국의 갯벌, 서울대학교 출판부, 1073
10 Lim, D.I., 2001, Late Quaternary Stratigraphy and Sedimentology of Tidal-flat Deposits, Western Coast of Korea. Ph.D. thesis, Seoul National University, Seoul, 303p
11 SU, 2000, Seismic Unix, Colorado School of Mines
12 조창수, 이희일, 서정희, 2002, 탄성파 굴절법 토모그래 피를 이용한 지반의 속도분포 해석, 물리탐사, 5, pp.6-17
13 Vista, 1999, seismic data processing software, SIS Ltd., Canada
14 Chough, S.K., Lee, H.J., and Yoon, S.H., 2000, Marine Geology of Korean Seas, Elsevier, Amsterdam, 313
15 Lee, H.J., Chun, S.S., Chang, J.H. and Han, S.J., 1994, Landward migration of isolated shelly sand ridge (chenier) on the macrotidal flat of Gomso Bay, west coast of Korea: controls of storms and typhoon. Journal of Sedimentary Research, A64, pp.886-893
16 Ryang, W.H. and Shon, H., 2003, High-frequency magnetotelluric data of tidal deposits: Gomso Bay, southwest coast of Korea, Geosciences Journal 7, pp. 293- 298   DOI   ScienceOn
17 Park, Y.A., Lim, D.I., Choi, J.Y. and Lee, Y.G., 1997, Late Quaternary stratigraphy of the tidal deposits in Hampyung Bay, southwest coast of Korea. Journal of Korean Society of Oceanography, The Sea, 2, pp. 138-150. (in Korean with English abstract)
18 Lee, H.J. and Chough, S.K., 1989. Sediment distribution, dispersal and budget in the Yellow Sea. Marine Geol., 87 pp.195-205   DOI   ScienceOn
19 Butenko, J., Milliman, J.D., Ye, Y.C., 1985. Geomorphology, shallow structure, and geological hazards in the East China Sea. Cont. Shelf Res. 4, pp.121-142   DOI   ScienceOn
20 Cho, C.S., Lee, H.I. and Suh, J.H., 2002, interpretation on the subsurface velocity structure by seismic refraction tomography, Korean Society of Exploration Geophysicists, 5, pp.6-17
21 National Geography Institute, 1981, Basic research report on nearshore environments of Korea (Seokpo area). Seoul, 56p