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http://dx.doi.org/10.7854/JPSK.2013.22.1.009

Forming processes and the Value of the Natural Heritage of the Guksubawi in Ulleung Island, Korea  

Woo, Hyeon Dong (Department of Geology, Kyungpook National University)
Park, Jin Soo (Department of Geology, Kyungpook National University)
Oh, Han Sol (Department of Geology, Kyungpook National University)
Jang, Yun Deuk (Department of Geology, Kyungpook National University)
Publication Information
The Journal of the Petrological Society of Korea / v.22, no.1, 2013 , pp. 9-17 More about this Journal
Abstract
Trachytic cliff showing a unique appearance like noodle is located in the Mt. Bipa, Seo-myeon, Ulleung island. This cliff is named 'Guksubawi'(means noodle-like rock) by its appearance. There is cliffs on three sides except north side and each side shows semi-vertical columnar joints obviously. This columnar joint has different character in appearance and mineralogy according to their direction and this tendency is remarkable in contrast between the east side and the west side. The consideration of the cooling processes after eruption of trachytic lava based on the contrast of both columnar joints dealt in the full text. In the morphological approach, the columnar joint on the east side has narrower space and chisel-like marks than the west side. And the joint walls are sharper on the east side than west side too. In the mineralogical approach, then, trachyte on the west side has bigger phenocrysts than the east side and is showing glomeroporphyritic texture and weak trachytic textures of lath of plagioclase. Around these differences between the east side and the west side, it modelled the typical temperature gradient while the cooling processes of hot rocks and the east side, consequently, corresponds to exterior of the entire trachytic volume. The columnar joint of the Guksubawi has the value of landscape and scientific importance about the forming processes of the columnar joint of trachytic lava, and so supposed it has enough values to preserved as natural heritage.
Keywords
Cooling; Columnar joint; Chisel-like mark; Temperature gradient; Natural heritage;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Carslaw, H.S. and Jaeger, J.C., 1959, Conduction of Heat in Solids, 2nd edition. Oxford University Press, Inc., New York, p. 510.
2 Dance, M., Hancock, P.L., Sparks, R.S.J. and Wallman, A., 2000, Fracture and surface crust development in a Holocene pahoehoe lava flow on the Island of Tenerife, Canaries. Journal of Structural Geology, 23, 165-182.
3 DeGraff, J.M. and Aydin, A., 1987, Surface morphology of columnar joints and its significance to mechanics and direction of joint growth. Geological Society of America Bulletin, 99, 605-617.   DOI
4 DeGraff, J.M., Aydin, A., 1993, Effect of thermal regime on growth increment and spacing of contraction joints in basaltic lava. Journal of Geophysical Research, 98, 6411-6430.   DOI
5 Goehring, L., 2003, A Study of 3D Crack Patterns and Columnar Jointing in Corn Starch. Ph.D. dissertation, Toronto University, p. 61.
6 Goehring, L., Mahadevan, L. and Morris, S.W., 2009, Non-equilibrium scale selection mechanism for columnar jointing. PNAS, 106, 387-392.   DOI   ScienceOn
7 Im, J.H., Choo, C.O. and Jang, Y.D., Petrological and Mineralogical Characteristics of Matrix of Pumice in Ulleung Island. The Mineralogical Society of Korea, 24, 151-164.   과학기술학회마을   DOI   ScienceOn
8 Kim, K.B. and Lee, G.D., 2008, A Study on Volcanic Stratigraphy and Fault of Ulleung-do, Korea. The Journal of Engineering Geology, 2, 321-330.
9 Kim, K.H., Tanaka, T., Nagao, K. and Jang, S.K., 1999, Nd and Sr isotopes and K-Ar ages of the Ulreungdo alkali volcanic rocks in the East Sea, South Korea. Geochemical Journal, 33, 317-341.   DOI
10 Kim, Y.K. and Lee, D.S., 1983, Petrology of Alkali Volcanic Rocks in Northern part of Ulrung Island. The Korean Society of Economic and Environmental Geology, 16, 19-36.
11 Machida, H., Arai, F., Lee, B.S., Moriwaki, H. and Furuta, T., 1984, Late Quaternary tephras in Ulreungdo island, Korea. Journal of Geography, 93, 1-14.   DOI
12 Min, K.D., Kim, O.J., Yun, S.K., Lee, D.S. and Kim, K.H., 1988, Applicability of Plate Tectonics to the Post-Late Cretaceous Igneous Activitity and Mineralization in the Southern Part of South Korea (II). The Geological Society of Korea, 24, 11-40.
13 Philpotts, A.R., 1990, Principles of Igneous and Metamorphic Petrology. Prentice Hall, New Jersey, p. 686.
14 Porter, D.A. and Eaterling, K.E., 1981, Phase Transformations in Metals and Alloys. Van Nostrand Reinhold, New York, p. 597.
15 Won, J.K. and Lee, M.W., The Volcanism and Petrology of Alkali Volcanic rocks, Ulrung Island. The Geological Society of Korea, 20, 296-305.   과학기술학회마을
16 Arai, F., Oba, T., Kitazato, H., Horibe, Y. and Machida, H., 1981, Late Quaternary tephrochronology and paleo-oceanography of the sediments of the Japan Sea. The Quaternary Reasearch, 20, 209-230.