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http://dx.doi.org/10.7854/JPSK.2015.24.2.91

Pattern and Origin of the Rhyolitic Dike Swarm, Northeastern Cheongsong, Korea  

Hwang, Sang Koo (Department of Earth and Environmental Sciences, Andong National University)
Kwon, Tae Ho (Department of Earth and Environmental Sciences, Andong National University)
Seo, Seung Hwan (Department of Earth and Environmental Sciences, Andong National University)
Publication Information
The Journal of the Petrological Society of Korea / v.24, no.2, 2015 , pp. 91-105 More about this Journal
Abstract
Jungtaesan and Galpyeongji intrusions in the northeastern Cheongsong occur as laccolith and stock which intrude Gasongdong Formation and Dogyedong Formation, respectively. Cheongsong dike swarm, intruding the Dogyedong Formation, is closely associated with this stock. The dike swarm is more radial to focus into Galpyeongji and its outline is oval. The dikes of the dike swarm are only rhyolite dikes with flow banded, spherulitic and rare stony structures, and represents a single intrusive phase of magma. It can be interpretated that orientation of the dikes is controlled by stress states. Therefore, the dikes display a radial pattern through occupying vertical joints that have been generally attributed to radial fractures formed during doming of the sedimentary rocks by the intrusion of the Galpyeongji stock. The dike pattern could sufficiently account for dike injections into these joints.
Keywords
Cheongsong dike swarm; Galpyeongji stock; Rhyolite dikes; Radial pattern;
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  • Reference
1 Phillips, W.J., 1974, The dynamic emplacement of cone sheets. Tectonophysics, 24, 69-84.   DOI
2 Pollard, D.D., 1987, Elementary fracture mechanics applied to the structural interpretation of dykes. Geol. Assoc. Canadian Special Paper, 34, 5-24.
3 Robson, G.R. and Barr, K.G., 1964, The effect of stress on faulting and minor intrusions in the vicinity of a magma body. Bulletin of Volcanology, 27, 315-330.   DOI
4 Takada, A., 1988, Subvolcanic structure of the central dike swarm associated with the ring complexes in the Shitara district, central Japan. Bulletin of Volcanology, 50, 106-118.   DOI
5 Walker, G.P.L., 1984, Downsag calder sizes, and incremental caldera growth. Journal of Geophysaical Research, 89, 8407-8416.   DOI
6 Walker, G.P.L., 1992, "Coherent intrusive complexes" in large basaltic volcanoes: a new structural model. Journal of Volcanology and Geothermal Research, 50, 41-54.   DOI
7 Ancochea, E., Brandle, J.I.,, Huertas, M.J., Cubas, C.R. and Hernan, F., 2003, The dike of La Gomera (Canary Islands): identification of cone sheet and radial dike swarms. Journal of Volcanology and Geothermal Research, 120, 197-206.   DOI
8 Anderson, E.M., 1936, The dynamics of the formation of cone sheets, ring-dikes and cauldron subsidences. Royal Society of Edinburgh Proceedings, 56, 128-163.
9 Baer, G. and Heiman, A., 1995, Physics and chemistry of dykes. Balkema, Rotterdam, 339p.
10 Cas, R.A.F. and Wright, J.V., 1987, Volcanic successions: modern and acient: a geological approach to processes, produts and successions. Allen & Unwin, London, 528p.
11 Dzurisin, D. Koyanagi, R.Y. and English, T.T., 1984, Magma supply and storage at Kiauea Volcano, Hawaii, 1956-1983. Journal of Volcanology and Geothermal Research, 21, 177-206.   DOI
12 Chevallier, L. and Verwoerd, W.J., 1988, A numerical model for the mechanical behavior of intraplate volcanoes. Journal of Geophysical Research, 93, 4182-4198.   DOI
13 Chevallier, L. and Verwoerd, W.J., 1990, Influence of temperature on the distribution of stress and displacement in a volcano: a numerical approach. Bulletin of Volcanology, 52, 413-425.   DOI
14 Choi, J.O, 2015, Morphology of the Jungtaesan cryptodome in northern Cheongsong, Korea. Master thesis, Graduate School, Andong National School, 50p (in Korean with English abstract).
15 Ernst, R.E., Buchan, K.L. and Palmer, H.C., 1995, Giant dyke swarms: characteristics, distribution and geotectonic applications. In "Physics and chemistry of dykes". Edited by: G. Baer and A. Heiman. Balkema, Rotterdam, 3-21.
16 Gudmundsson, A., 1990, Emplacement of dikes, sills and crustal magma chambers at divergent plate boundaries. Tectonophysics, 176, 257-275.   DOI
17 Hwang, J.H., 1992, Paleostress reconstructions and the tectonic evolution of the Kyungsang basin. Journal of Geological Society of Korea, 28 471-482.
18 Hwang, S.K., 2007, Cooling processes of the Juwangsan Tuff in eastern Cheongsong, Korea. Journal of the Geological Society of Korea, 43, 353-367 (in Korean with English abstract).
19 Hwang, S.K., Lee, B.J and Reedman, A.J., 2007, Magmatic processes of the Juwangsan Tuff, southeastern Cheongsong, Korea. Journal of the Geological Society of Korea, 43, 65-81 (in Korean with English abstract).
20 Johnson, R.B., 1961, Patterns and origins of radial dike swarms associated with West Spanish Peak and Dike Mountains, south-central Colorado. Geological Society of America Bulletin, 72, 579-590.   DOI
21 Kim, S.W. and Park, B.S., 1970, Explanatory text of the Geological Map of Yeongyang Sheet. Geological Survey of Korea, 25p.
22 Lee, H.G. and Hong, S.H., 1973, Explanatory text of the Geological Map of Cheongsong Sheet. Geological and Mineral Institute of Korea, 23p.
23 Marinoni, L.B. and Gudmundsson, A., 2000, Dykes, faults and paleostresses in the Teno and Anaga massifs of Tenerife (Canary Islands). Journal of Volcanology and Geothermal Research, 103, 83-103.   DOI
24 Marinoni, L.B. and Pasquare, G., 1994, Tectonic evolution of the emergent part of a volcanic ocean island: Lanzarote, Canary Islands. Tectonophysics, 239, 111-135.   DOI
25 Modell, D., 1936, Ring-dike complex of the Belknap Mountains, New Hampshire. Geological Society of America Bulletin, 47, 1885-1932.   DOI
26 Nakamura, K., 1977, Volcanoes as possible indicates of tectonic stress orientation - principal and proposal. Journal of Volcanology and Geothermal Research, 2, 1-16.   DOI
27 Nordie, B.E., 1973, Morphology and structure of the western Galapagos volcanoes and a model for their origin. Geological Society of America Bulletin, 84, 2931-2956.   DOI
28 Ode, H., 1957, Mechanical analysis of the dike pattern of the Spanish Peak area, Colorado. Geological Society of America Bulletin, 68, 567-578.   DOI
29 Parker, T.J. and McDowell, A.N., 1951, Scale modells as guide to interpretations of salt-dome faulting. Am. Assoc. Petroleum Geologists Bull., 35, 2076-2094.