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http://dx.doi.org/10.7854/JPSK.2019.28.4.307

Petrology of the Sanbangsan Lava Dome, Jeju Volcanic Field  

Yun, Sung-Hyo (Department of Earth Science Education, Pusan National University)
Publication Information
The Journal of the Petrological Society of Korea / v.28, no.4, 2019 , pp. 307-317 More about this Journal
Abstract
Petrological studies were performed on the Sanbangsan lava dome, located in the southwest of Jeju Island Volcanic Field. According to the lava ejection method, it is 'an internal primitive form' that is gradually pushed up and expanded by continuous magma injection from the bottom to the top of the vent and it corresponds to the 'low lava dome'. The rocks are partly plotted in the field of benmoreite, but mostly plotted in the field of trachyte of the Cox et al.(1979) classification diagram, and also mainly plotted in the field of trachyte of Le Maitre et al.(2002) and Zr/TiO2-Nb/Y classification diagram. Therefore, the expression that described the rock of Sanbangsan lava dome as 'trachy-andesite' should be corrected to 'trachyte'. The volcanic rocks that consists in the Sanbangsan lava dome are trachyte containing normative quartz and shows differentiation trend in the range of 59.75-63.46 wt.% SiO2.
Keywords
Sanbangsan; lava dome; trachyte;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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20 https://100.daum.net/encyclopedia/view/24XXXXX76823
21 https://100.daum.net/encyclopedia/view/14XXE0026233