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Jurassic (~170Ma) Zircon U-Pb Age of a "Granite Boulder" in the Geumgang Limestone, Ogcheon Metamorphic Belt, Korea: Reinterpretation of its Origin
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 Title & Authors
Jurassic (~170Ma) Zircon U-Pb Age of a "Granite Boulder" in the Geumgang Limestone, Ogcheon Metamorphic Belt, Korea: Reinterpretation of its Origin
Cheong, Wonseok; Cho, Moonsup; Yi, Keewook; Lee, Min Sung; Kim, Yoonsup;
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 Abstract
A "granite boulder", ~70 cm in size, was reported from the Geumgang Limestone, and has been considered as a glaciogenic dropstone. Since this interpretation has enormous implications for unraveling the evolution history of the Ogcheon Metamorphic Belt, we re-examined the contact relationship and structure of the "granite boulder", and estimated its emplacement age based upon SHRIMP U-Pb zircon dating. The weighted mean age pooled from 6 spot analyses of two specimens is (, MSWD
 Keywords
Geumgang Limestone;granite boulder;dropstone;SHRIMP U-Pb zircon dating;Jurassic granite;
 Language
Korean
 Cited by
1.
Tracking Paleozoic evolution of the South Korean Peninsula from detrital zircon records: Implications for the tectonic history of East Asia, Gondwana Research, 2017, 50, 195  crossref(new windwow)
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