Fig. 1. Geological map of study area, modified after Hwang et al. (1996) and Kim et al. (2001), showing sample locations.
Fig. 2. Plane-polarized light thin-section photomicrographs of quartzites from the Geumsusan Formation. a) GSQ-2, (b)GSQ-11, c) GSQ-12, and d) GSQ-12F. Scale bar in all photographs is 0.3 mm.
Fig. 3. Cathodoluminescence images of the studied detrital zircons. a) Jangsan Formation of Danyang-Taebaek area, b)Jangsan Formation of Mungyeong area, c) Geumsusan Formation (SU samples), and d) Geumsusan Formation (GSQ samples).
Fig. 4. U-Pb concordia diagrams for the studied samples.
Fig. 5. Cumulative probability density diagram for the studied samples. The numbers indicate the number of zircon analyses within 10% of the discordancy shown in this diagram. The previously published results of the Jangsan Formation (Lee et al., 2012b) were compared. The presence of strong peaks at about 1.8-2.0 Ga and 2.5 Ga suggests that they originated from a common provenance. See the discussion in the text for a Paleozoic age from a single zircon grain.
Table 1. SHRIMP U-Pb zircon data of the Jangsan Quartzite in the Taebaek Basin
Table 2. SHRIMP U-Pb zircon data of the Jangsan Quartzite in the Mungyeong area
Table 2. Continued
Table 3. SHRIMP U-Pb zircon data of the Geumsusan Quartzite
Table 3. Continued
Table 3. Continued.
Table 3. Continued
References
- Cheong, C.H. (1969) Stratigraphy and paleontology of the Samcheog coalfield, Gangweondo, Korea. Jour. Geol. Soc. Korea, v.5, p.13-56.
- Cho, M. and Cheong, W. (2016) Comments on "Detrital zircon geochronology and Nd isotope geochemistry of the basal succession of the Taebaeksan Basin, South Korea: Implications for the Gondwana linkage of the Sino-Korean (North China) Block during the Neoproterozoic-early Cambrian" by Lee et al. [Palaeogeography, Palaeoclimatology, Palaeoecology 441 (2016) 770-786]. Palaeogeography, Palaeoclimatology, Palaeoecology, v.459, p.606-609. https://doi.org/10.1016/j.palaeo.2016.04.024
- Choi, S.-J., Kim, D.-Y., Cho, D.-L. and Kim, Y.B. (2015) Detrital zircon U-Pb ages of the metapelite on the southwestern part of the Ogcheon Belt and its stratigraphic implication. Jour. Petrol. Soc. Korea, v.24, p.55-63. https://doi.org/10.7854/JPSK.2015.24.1.55
- Choi, S.-J., Kim, D.-Y. and Song, K.-Y. (2016) Geologic Age of Quartz Schist - Quartzite from Yeongam and Yeongsanpo Areas around Southwestern Part of Ogcheon Belt. Econ. Environ. Geol., v.49, p.155-165. https://doi.org/10.9719/EEG.2016.49.2.155
- Chough, S. K., Kim, H., Woo, J. and Lee, H. S. (2006) Tectonic implications of quartzite-shale and phyllite beds in the Seochangri Formation (Okcheon group), Bonghwajae section, mid-Korea. Geosciences Journal, v.10, p.403-421. https://doi.org/10.1007/BF02910435
- Chough, S. K., Kwon, S.-T., Ree, J.-H. and Choi, D. K. (2000) Tectonic and sedimentary evolution of the Korean peninsula: a review and new view. Earth-Science Reviews, v.52, p.175-235. https://doi.org/10.1016/S0012-8252(00)00029-5
- Chough, S. K., Lee, D. J., Ree, J.-R., Choh, S.-J. and Woo, J. (2016) Comment on "Depositional age and petrological characteristics of the Jangsan Formation in the Taebaeksan Basin, Korea-revisited" by Lee, Y.I., Choi, T. and Lim, H.S., Jour. Geol. Soc. Korea, v.52, p.67-77. Jour. Geol. Soc. Korea, v.52, p.961-967. https://doi.org/10.14770/jgsk.2016.52.1.67
- Gwak, M.-S., Song, Y.-S. and Park, K.-Y. (2017) Deposional Age of the Bangnim Group, Pyeongchang, Korea Constrained by SHRIMP U-Pb Age of the Detrital Zircons. Jour. Petrol. Soc. Korea, v.26, p.73-82. https://doi.org/10.7854/JPSK.2017.26.1.73
- Ha, Y., Song, Y.-S. and Kim, J-M. (2014) Gwangju Shear Zone : Is it the Tectonic Boundary between the Yeongnam massf and Okcheon Metamorphic Belt?, Jour. Petrol. Soc. Korea, v.23, p.17-30. https://doi.org/10.7854/JPSK.2014.23.1.017
- Hwang, J.H., Kim, D.H., Cho, D.L. and Song, K.Y. (1996) Geological map of Andong sheet, 1:250,000 scale and Explanatory note, MOST/KIGAM, 67p.
- Jang, Y., Kwon, S., Song, Y., Kim, S.W., Kwon, Y.K. and Yi, K. (2018) Phanerozoic polyphase orogenies recorded in the northeastern Okcheon Belt, Korea from SHRIMP U-Pb detrital zircon and K-Ar illite geochronologies. Jour. Asian Earth Sci., v.157, p.198-217. https://doi.org/10.1016/j.jseaes.2017.08.002
- Kihm, Y. H., Kim, J. H. and Koh, H. J. (1996) Geology of the Deogsan-myeon area, Jecheon-gun, Chungcheongbuk-do, Korea: contact between the Choseon and Ogcheon supergroups. Jour. Geol. Soc. Korea, 32, 483-499.
- Kim, D.-Y., Choi, S.-J. and Yi, K. (2015) SHRIMP U-Pb zircon ages of the metapsammite in the Yeongam-Gangjin area. Econ. Environ. Geol., v.48, p.287-299. https://doi.org/10.9719/EEG.2015.48.4.287
- Kim, H.S., Hwang, M.-K., Ree, J.-H. and Yi, K. (2013) Tectonic linkage between the Korean Peninsula and mainland Asia in the Cambrian: insights from U-Pb dating of detrital zircon. Earth Planet. Sci. Letters, v.368, p.204-218. https://doi.org/10.1016/j.epsl.2013.03.003
- Kim, H. S., Seo, B. and Yi, K. (2014b) Medium Temperature and Lower Pressure Metamorphism and Tectonic Setting of the Pyeongan Supergroup in the Munkyeong Area. Jour. Petrol. Soc. Korea, v.23, p.311-324. https://doi.org/10.7854/JPSK.2014.23.4.311
- Kim, J.C., Koh, H.J., Lee, S.R., Lee, C.B., Choi, S.J. and Park, G.H. (2001) Geological map of Gangreung-Sokcho sheet, 1:250,000 scale and Explanatory note, MOST/KIGAM, 76p.
- Kim, K.W., Park, B.S. and Lee, H.K. (1967) Geological map and explanatory text of the Jecheon Sheet, Sheet 6825-III, scale 1:50,000. Geological Survey of Korea, 46p.
- Kim, M. G., Lee, Y. I., Choi, T. and Orihashi, Y. (2017) The tectonic setting of the eastern margin of the Sino-Korean Block inferred from detrital zircon U-Pb age and Nd isotope composition of the Pyeongan Supergroup (upper Palaeozoic - Lower Triassic), Korea. Geological Magazine, doi:10.1017/S0016756817000899.
- Kim, M.J. and Park, K.-H. (2018) A review on the K-Ar Ages of Quartz Schist in the Okdong Fault Zone: Robust Enough for the Evidence for the Precambrian Deposition of the Jangsan Formation? Jour. Petrol. Soc. Korea, v.27, p.67-72. https://doi.org/10.7854/JPSK.2018.27.1.67
- Kim, N., Cheong, C.-S., Park, K.-H., Kim, J. and Song, Y.-S. (2012) Crustal evolution of northeastern Yeongnam Massif, Korea, revealed by SHRIMP U-Pb zircon geochronology and geochemistry. Gondwana Res., v.21, p.865-875. https://doi.org/10.1016/j.gr.2011.10.003
- Kim, N., Cheong, C.-S., Yi, K., Song, Y.-S. and Park, K.-H. (2014a) Zircon U-Pb geochronological and Hf isotopic constraints on the Precambrian crustal evolution of the north-eastern Yeongnam Massif, Korea. Precambrian Res., v.242, p.1-21. https://doi.org/10.1016/j.precamres.2013.12.008
- Lee, H.Y. (1987) Paleozoic erathem. In: Lee, D.S. (Ed.), Geology of Korea. Kyohak-sa, Seoul, pp. 49-156.
- Lee, M.S. and Park, B.S. (1965) Geological map and explanatory text of the Hwanggang-ni Sheet, Sheet 6824-IV, scale 1:50,000. Geological Survey of Korea, 43p.
- Lee, T.-H., Park, K.-H. and Yi, K. (2018a) SHRIMP U-Pb ages of detrital zircons from the Early Cretaceous Nakdong Formation, South East Korea: Timing of initiation of the Gyeongsang Basin and its provenance. Island Arc, 27, doi:10.1111/jar.12258.
- Lee, T.-H., Park, K.-H. and Yi, K. (2018b) Nature and evolution of the Cretaceous basins in the eastern margin of Eurasia: A case study of the Gyeongsang Basin, SE Korea. Jour. Asian Earth Sci., v.166, p.19-31. https://doi.org/10.1016/j.jseaes.2018.07.004
- Lee, Y.I., Choi, T. and Lim, H.S. (2016a) Depositional age and petrological characteristics of the Jangsan Formation in the Taebaeksan Basin, Korea-revisited. Jour. Geol. Soc. Korea, v.52, p.67-77. https://doi.org/10.14770/jgsk.2016.52.1.67
- Lee, Y.I., Choi, T. and Lim, H.S. (2016b) Reply to the comment on "Depositional age and petrological characteristics of the Jangsan Formation in the Taebaeksan Basin, Korea-revisited" by Lee, Y.I., Choi, T. and Lim, H.S., Jour. Geol. Soc. Korea, 52(2016), 67-77. Jour. Geological Society of Korea. v.52, p.969-973. https://doi.org/10.14770/jgsk.2016.52.1.67
- Lee, Y.I., Choi, T., Lim, H.S. and Orihashi, Y. (2012a) Detrital zircon U-Pb ages of the Jangsan Formation in the northeastern Okcheon belt, Korea and its implications for material source, provenance, and tectonic setting. Sedimentary Geol., v.282, p.256-267. https://doi.org/10.1016/j.sedgeo.2012.09.005
- Lee, Y.I., Choi, T., Lim, H.S. and Orihashi, Y. (2016c) Detrital zircon geochronology and Nd isotope geochemistry of the basal succession of the Taebaeksan Basin, South Korea: implications for the Gondwana linkage of the Sino-Korean (North China) block during the Neoproterozoic-early Cambrian. Palaeogeogr. Palaeoclimat. Palaeoecol., v.441, p.770-786. https://doi.org/10.1016/j.palaeo.2015.10.025
- Lee, Y.I., Choi, T. and Orihashi, Y. (2011) LA-ICP-MS zircon U-Pb ages of the Precambrian Yuli Group. Jour. Geol. Soc. Korea, v.47, p.81-87.
- Lee, Y.I., Choi, T. and Orihashi, Y. (2012b) Depositional ages of upper Pyeongan Supergroup strata in the Samcheok coalfield, eastern central Korea. Jour. Geol. Soc. Korea, v.48, p.93-99.
- Lee, Y.I., Lim, H.S., Choi, T. and Orihashi, Y. (2010) Detrital zircon U-Pb ages of the late Paleozoic Sadong Formation in the Pyeongchang coalfield, Gangweon-do Province, Korea: implications for depositional age and provenance. Jour. Geol. Soc. Korea, v.46, p.73-81.
- Ludwig, K.R. (2009) SQUID 2: a user''s manual. Berkeley, CA, Berkeley Geochronology Center Special Publication, No. 2, 100p.
- Ludwig, K.R. (2012) User's manual for Isoplot 3.6: A Geochronological Toolkit for Microsoft Excel. Berkeley Geochronology Center Special Publication, 5, Berkeley, CA. 75p.
- Sagong, H., Cheong, C.-S. Kwon, S.-T. (2003) Paleoproterozoic orogeny in South Korea: evidence from Sm-Nd and Pb step-leaching garnet ages of Precambrian basement rocks. Precam. Res., v.122, p.275-295. https://doi.org/10.1016/S0301-9268(02)00215-2
- Song, Y.-S., Park, K.-H., Lee, H.-S., Cao, L. and Orihashi, Y. (2009) LA-ICP-MS U-Pb zircon age of the granite gneiss from Jeungsan-Pyeongwon area of North Korea. Jour. Petrol. Soc. Korea, v.18, p.171-179.
- Walker, J.D. Geissman, J.W., Bowring, S.A. and Babcock, L.E., compilers (2018) Geologic Time Scale v. 5.0. Geol. Soc. Am., https://doi.org/10.1130/2018.CTS005R3C.
- Williams, I.S. (1998) U-Th-Pb geochronology by ion microprobe. In: Mckibben, M.A., Shanks, W.C.III., Ridley, W.L. (eds.), Application of Micro analytical Techniques to Understanding Mineralizing Processes. Society of Economic Geologists, Socorro, Review in Economic Geology, 7, 1-35.
- Won, C.G. and Lee, H.Y. (1967) Geological map and explanatory text of the Danyang Sheet, Sheet 6824-I, scale 1:50,000. Geological Survey of Korea, 34p.
- Zhao, G., Cho, L., Wilde, S.A., Sun, M., Choe, W.J. and Li, S. (2006) Implications based on the first SHRIMP U-Pb zircon dating on Precambrian granitoid rocks in North Korea. Earth Planet. Sci. Lett., v.251, p.365-379. https://doi.org/10.1016/j.epsl.2006.09.021