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Petrology of the Mt. Dungjuribong Volcanic Complex, Gurye-gun, Southwest of Ryeongnam Massif  

Koh, Jeong-Seon (Research Institute of Science Education, Pusan National University)
Yun, Sung-Hyo (Department of Earth Science, Pusan National University)
Kim, Young-La (Jangyoungsil Science High School)
Publication Information
The Journal of the Petrological Society of Korea / v.18, no.4, 2009 , pp. 349-370 More about this Journal
Abstract
The Mt. Dungjuribong Volcanic Complex located in Gurye-gun, southwest of Ryeongnam massif, composed of Cretaceous andesitic rocks and rhyolite. $SiO_2$ contents of the volcanic rocks range from 52.0 to 78.5 wt.%. The major and trace elements composition, REE patterns and tectonomagmatic discrimination diagrams of volcanic rocks suggest that they are typical of continental margin arc calc-alkaline rocks produced in the subduction environment. The phenocrysts of the volcanic rocks show that they had gone in disequilibrium state, such as reversal zoning and resorbed core of plagioclase, reaction rim around pyroxene and resorbed margins of quartz, which showing the evidence of magma mixing during the evolution of magma.
Keywords
Mt. Dungjuribong; Cretaceous Volcanic Complex; continental margin arc; magma mixing;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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