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http://dx.doi.org/10.9720/kseg.2018.4.645

Interpretation of Paleostress using Geological Structures observed in the Eastern Part of the Ilgwang Fault  

Kim, Taehyung (Division of Earth Environmental System Science (Major of Earth & Environmental Sciences))
Jeong, Su-Ho (Division of Earth Environmental System Science (Major of Earth & Environmental Sciences))
Lee, Jinhyun (Division of Earth Environmental System Science (Major of Earth & Environmental Sciences))
Naik, Sambit Prasanajit (Division of Earth Environmental System Science (Major of Earth & Environmental Sciences))
Yang, Wondong (Division of Earth Environmental System Science (Major of Earth & Environmental Sciences))
Ji, Do Hyung (Division of Earth Environmental System Science (Major of Earth & Environmental Sciences))
Kim, Young-Seog (Division of Earth Environmental System Science (Major of Earth & Environmental Sciences))
Publication Information
The Journal of Engineering Geology / v.28, no.4, 2018 , pp. 645-660 More about this Journal
Abstract
In the southeastern part of the Korean Peninsula, huge fault valleys, including the Yangsan and Ulsan faults, are recognized. These NNE-SSW trending lineaments are called as a whole Yangsan Fault System. However, this fault system is relatively poorly studied except the Yangsan and Ulsan faults. This study deduced the paleostress history based on the mutual cross-cutting relationships between geologic structures developed in the granite body near the Ilgwang fault, which is compared with previous studies. In the study area, four lineaments parallel to the Ilgwang fault are recognized, and three of them show evidences of faulting. In each lineament, both slip-senses of left-lateral and right-lateral are recognized. It indicates that these faults consistently underwent multiple deformations of inversion along the faults. The inferred paleostress directions based on the mutual cross-cutting relationships of the geological structures are as follows: 1) Tensile fractures developed in the late Cretaceous under the ENE-WSW direction of compressive stress, 2) NW-SE trending maximum horizontal principal stress generated conjugate strike-slip faults, and 3) selective reactivations of some structures were derived under the compression by the NE-SW trending principal stress.
Keywords
Yangsan Fault System; Ilgwang fault; paleostress analysis; inversion tectonics; lineament analysis;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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1 Gwon, S., and Kim, Y.-S., 2016, Interpretation of Deformation History and Paleostress Based on Fracture Analysis Exposed in a Trench. Journal of Engineering Geology, 26(1), 33-49 (in Korean with English abstract).   DOI
2 Ha, S., Cheon, Y., Kang, H.-C., Kim, J.-S., Lee, S.-K., and Son, M., 2016, Geometry and kinematics of the subsidiary faults of the Ilgwang fault, SE Korea. Journal of the Geological Society of Korea. 52(1), 31-50 (in Korean with English abstract).   DOI
3 Hong, S.H., and Choi, P.-Y., 1988, 1:50,000 the geological map of the Yuchon sheet. Korea Institute of Energy and Resources.
4 Hwang, B.H., Lee, J.D. and Yang, K., 2004, Petrological study of the granitic rocks around the Yangsan fault: Lateral displacement of the Yangsan fault. Journal of the Geological Society of Korea, 40, 161-178 (in Korean with English abstract).
5 Hwang, J.H., 1994, Reconstitution of Paleostress in the Southeastern Korean Peninsula since the Early Cretaceous. Journal of the geological society of Korea, 30(1), 27-34 (in Korean with English abstract).
6 Jin, K., Kim, Y.-S., Kang, H.C., and Shin, H.C., 2013, Study on developing characteristics of the Quaternary Gusan Fault in Uljin, Gyeongbuk, Korea. Journal of the Geological Society of Korea, 49, 197-207 (in Korean with English abstract).
7 Jin, K., Kim, Y.-S., Yang, S.-J., Choi, J.-H., and Kim, K.-O., 2018, Deformation history and characteristics of the Ilgwang Fault in Southeast Korea. Geosciences Journal, 22(2), 209-226.   DOI
8 Kelly, P.G., Peacock, D.C.P., Sanderson, D.J. and McGurk, A.C., 1999, Selective reverse-reactivation of normal faults, and deformation around reverse-reactivated faults in the Mesozoic of the Somerset coast. Journal of Structural Geology, 21, 493-509.   DOI
9 Kim, H., Song, C.-W., Kim, J.-S., Son, M., and Kim, I.-S., 2008, Tertiary Geological Structures and Deformation History of the Southern Tsushima Island, Japan. Journal of the Geological Society of Korea, 44, 175-198 (in Korean with English abstract).
10 Kim, I.-S., 1992, Origin and tectonic evolution of the East Sea (Sea of Japan) and the Yangsan fault system: a new synthetic interpretation. Journal of the Geological Society of Korea, 28, 84-109 (in Korean with English abstract).
11 Kim, J.-S., Ree, J.-H., Han, S.-H., Kim, H.-S., Lee, Y.-J., Lee, K.-J. and Joo, B.-C., 2003, The Ilkwang Fault in southeastern Korea revealed by geophysical and trench surveys. Journal of the Geological Society of Korea, 39, 211-223 (in Korean with English abstract).
12 Kim, K.-H., Ree, J.-H., Kim. Y.H., Kim, S., Kang, S.Y., and Seo W., 2018, Assessing whether the 2017 MW 5.4 Pohang earthquake in South Korea was an induced event. Science, 10.1126/science.aat6081, 1-7.   DOI
13 Kim, M.-C., Jung, S., Yoon, S., Jeong, R.-Y., Song, C.W., and Son, M., 2016, Neotectonic Crustal Deformation and Current Stress Field in the Korean Peninsula and Their Tectonic Implications: A Review. The Journal of the Petrological Society of Korea, 25(3), 169-193 (in Korean with English abstract).   DOI
14 Kim, N.J., Kwon, Y.I., and Jin, M.S., 1971, 1:50,000 the geological map of Moryang sheet, Geological survey of Korea.
15 Kim, Y.H., He, W.H., Ni, S.D., Lim, H., and Park, S.-C., 2017, Earthquake Source Mechanism and Rupture Directivity of the 12 September 2016 Mw 5.5 Gyeongju, South Korea, Earthquake. Bulletin of the Seismological Society of America, 107(5), 2525-2531.
16 Kim, Y.-S., Andrews, J.R. and Sanderson, D.J., 2001, Reactivated strike-slip faults: examples from north Cornwall, UK. Tectonophysics, 340, 173-194.   DOI
17 Kim, Y.-S., and Jin, K., 2006, Estimated earthquake magnitude from the Yugye Fault displacement on a trench section in Pohang, SE Korea. Journal of the Geological Society of Korea, 42, 79-94 (in Korean with English abstract).
18 Kim, Y.-S. and Park, J.Y., 2006, Cenozoic deformation history of the area around Yangnam-Yangbuk, SE Korea and its tectonic significance. Journal of Asian Earth Sciences, 26, 1-20.
19 KOPEC, 2007, Report on the fault analysis in SHINKORI NUCLEAR POWER PLANT UNITS 1 and 2.
20 Kyung, J.B., 1997, Paleoseismological study on the Mid northern part of Ulsan Fault by trench method. The Journal of Engineering Geology, 7, 81-90 (In Korean with English abstract).
21 Kyung, J.B., Lee, K., and Okada, A., 1999a. A paleoseismological study of the Yangsan fault - analysis of deformed topography and trench survey. Journal of the Korean Geophysical Society 2, 155-168 (in Korean with English abstract).
22 Kyung, J.B., Lee, K., Okada, A., Watanabe, M., Suzuki, Y., and Takemura, K., 1999b, Study of Fault Characteristics by Trench Survey in the Sangchon-ri Area in the Southern Part of Yangsan Fault, Southeastern Korea. Journal of Korean Earth Science Society, 20(1), 101-110 (in Korean with English abstract).
23 Lee, H.-K., and Yang, J.-S., 2005, ESR dating of the Ikwang fault. Journal of the Geological Society of Korea, 41, 369-384 (in Korean with English abstract).
24 Lee, Y.J. and Lee, I. K., 1972, 1:50,000 the geological map of Eonyang sheet, Geological survey of Korea.
25 Okada, A., Watanabe, M., Sato, H., Jun, M.S., Jo, W.R., Kim, S.K., Jeon, J.S., Choi, H.C., and Oike, K., 1994, Active fault topography and trench survey in the central part of the Yangsan fault, Southeast Korea, Journal of Geography, 103, 111-126 (in Korean with English abstract).
26 Sibson, R.H., 1985, A note on fault reactivation. Journal of Structural Geology, 7, 751-754.   DOI
27 Sibson, R.H., 1995, Selective fault reactivation during basin inversion: potential for fluid redistribution through fault-valve action. Geological Society Special Publication, 88, 3-19.   DOI
28 Son, C.M., Lee, S.M., Kim, Y.K., Kim, S.W., and Kim, H.S., 1978, Geological map of Dongrae and Weolnae sheets (1:50,000). Korea Research Institute of Geoscience and Mineral Resources.
29 Yang, J.-S., 2006, Quaternary fault activity in the southeastern part of the Korean peninsula. Ph.D. thesis, Kangwon National University, Kangwon.
30 Chae, B.-G., and Chang, T.W., 1994, Movement history of Yangsan fault and its related fractures at Chongha-Yongdok area, Korea, Journal of the geological society of Korea, 30(4), 379-394.
31 Chang, C.-J., 2002, Structural characteristics and evolution of the Yangsan fault, SE Korea. Ph.D. Thesis, Kyungpook National University, Daegu, 259 (in Korean with English abstract).
32 Chang, C.-J. and Chang, T.W., 1998, Movement History of the Yangsan Fault based on Paleostress Analysis. The Journal of Engineering Geology, 8, 35-49 (in Korean with English abstract).
33 Chang, K.H., Woo, B.G., Lee, J.H., Park, S.O., and Yao, A., 1990, Cretaceous and Early Cenozoic stratigraphy and history of eastern Kyongsang Basin, S. Korea. Journal of the Geological Society of Korea, 26, 471-487 (in Korean with English abstract).
34 Cheon, Y., Ha, S., Lee S., Cho, H., and Son, M., 2017, Deformation features and history of the Yangsan Fault Zone in the Eonyang-Gyeongju area, SE Korea. Journal of the Geological Society of Korea, 53(1), 95-114.   DOI
35 Cho, H.S., Kim, J.-S., Son, M., Sohn, Y.K., and Kim, I.-S., 2011, Petrography and 40Ar/39Ar ages of volcanic rocks in the Cretaceous Dadaepo Basin, Busan: Accumulation time and correlation of the Dadaepo Formation. Journal of the Geological Society of Korea, 47(1), 1-18.
36 Cho, H., Son, M. and Kim, I.-S., 2007, Anisotropy of magnetic susceptibility (AMS) of the granitic rocks in the Eastern Region of the Yangsan Fault. Economic and Environmental Geology, 40, 171-189 (in Korean with English abstract).
37 Cho, H., Son, M., Song, C. and Kim, I., 2008, Geological structures of the late Cretaceous Dadaepo basin, SE Korea, and their tectonic implication. American Geophysical Union, Fall Meeting 2008 (abstract), San Francisco, December 15-19, T53D-2002.
38 Choi, H., Hong, T.-K., He, X., and Baag, C.-E., 2012, Seismic evidence for reverse activation of a paleo-rifting system in the East Sea (Sea of Japan). Tectonophysics, 572-573, 123-133.
39 Choi, J.-H., Yang, S.-J. and Kim, Y.-S., 2009, Fault zone classification and structural characteristics of the southern Yangsan fault in the Sangcheon-ri area, SE Korea. Journal of the Geological Society of Korea, 45, 9-28 (in Korean with English abstract).
40 Choi, P.-Y., Lee, H.-K., and Chwae, U., 2007, Tectonic 'aggression and retreat' in the Quaternary tectonics of southern Korea, Journal of the Geological Society of Korea, 43, 415-425.
41 Chwae, U. and 57 others, 1998, Final report of the re-evaluation to the design base earthquake considering the Yangsan Fault. Technical Note of Korea Institute of Geology, Mining and Materials, Korea Electric Power Corporation, KR-B-255-7-1998, 1,694p (in Korean).
42 Fossen, H., 2010, Structural Geology. Cambridge University Press, Cambridge, 463p.