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http://dx.doi.org/10.7854/JPSK.2016.25.2.121

Petrological Characteristics of the Satkatbong Pluton, Yeongdeok, Korea  

Lim, Hoseong (Department of Geology, Kyungpook National University)
Kim, Jung-Hoon (Department of Geology, Kyungpook National University)
Woo, Hyeondong (Department of Geology, Kyungpook National University)
Do, Jinyoung (Department of Cultural Properties, Gyeongju University)
Jang, Yun-Deuk (Department of Geology, Kyungpook National University)
Publication Information
The Journal of the Petrological Society of Korea / v.25, no.2, 2016 , pp. 121-142 More about this Journal
Abstract
The Satkatbong pluton was studied with other plutons together, but some fundamental petrological characteristics were missing. This study mainly reports the petrography and geochemistry of the Satkatbong pluton comparing with the Daebo and the Bulguksa granitoids in south Korea. The Satkatbong pluton, which is host rock including a number of Mafic Magmatic Enclaves (MME), is north-south shaped dioritic pluton, located along the east coast of south Korea. The Satkatbong pluton seems to be unconformable with Cretaceous sedimentary rocks from fieldwork result. In geochemistry, the Satkatbong pluton, which is roughly similar with the Daebo granitoids, is classified into calc-alkali series rock and volcanic arc granitoid Tectonically. The fact that AlT value in marginal parts of amphiboles in the Satkatbong pluton is lower than other granitoids implies emplacement depth of the Satkatbong pluton was relatively shallow. The Satkatbong pluton shows different geochemical feature compared to the adjacent adakitic Yeongdeok granite. This seems to be caused by mafic mantle material expected from the occurrence of MMEs.
Keywords
Satkatbong dirotie; Yeongdeok granite; MME; Magma mixing;
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