Journal of the Korean earth science society (한국지구과학회지)

The Korean Earth Science Society (한국지구과학회)
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Detrital zircon U-Pb ages of the Cretaceous Iljik, Jeomgok, and Sagok formations in the Cheongsong Global Geopark, Korea: Depositional age and Provenance

청송 세계지질공원 내 백악기 일직층, 점곡층, 사곡층의 쇄설성 저어콘 U-Pb 연령: 퇴적시기와 기원지

  • Chae, Yong-Un (Department of Geological Sciences, Pusan National University) ;
  • Choi, Taejin (Department of Advanced Energy Engineering, Chosun University) ;
  • Paik, In Sung (Department of Earth and Environment Sciences, Pukyong National University) ;
  • Kim, Jong-Sun (Korea National Park Research Institute, Korea National Park Service) ;
  • Kim, Hyun Joo (Department of Earth and Environment Sciences, Pukyong National University) ;
  • Jeong, Hoon Young (Department of Geological Sciences, Pusan National University) ;
  • Lim, Hyoun Soo (Department of Geological Sciences, Pusan National University)
  • 채용운 (부산대학교 지질환경과학과) ;
  • 최태진 (조선대학교 첨단에너지공학과) ;
  • 백인성 (부경대학교 지구환경과학과) ;
  • 김종선 (국립공원공단 국립공원연구원) ;
  • 김현주 (부경대학교 지구환경과학과) ;
  • 정훈영 (부산대학교 지질환경과학과) ;
  • 임현수 (부산대학교 지질환경과학과)
  • Received : 2020.12.27
  • Accepted : 2021.02.09
  • Published : 2021.02.28
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Abstract

Detrital zircon U-Pb dating of samples from the Baekseoktan (Iljik Formation), Mananjaam (Jeomgok Formation), and Sinseongri (Sagok Formation) geosites in the Cheongsong Global Geopark were carried out to estimate the depositional age and provenance of the Hayang Group in the Gyeongsang Basin. In the Iljik Formation, Jurassic and Triassic zircons are dominant with minor Precambrian zircons, with no Cretaceous zircon. In contrast, the Jeomgok and Sagok formations show very similar age distributions, which have major age populations of Cretaceous, Jurassic, and Paleoproterozoic ages. The weighted mean ages of the youngest zircon age groups of the Jeomgok and Sagok formations are 103.2±0.3 and 104.2±0.5 Ma, respectively. Results suggest that the depositional ages of the Jeomgok and Sagok Formations are Albian. The detrital zircon age spectra indicate a significant change in provenance between the Iljik and Jeomgok formations. The sediments of the Iljik Formation are thought to have been supplied from nearby plutonic rocks. However, the Jeomgok and Sagok sediments are interpreted to have been derived from relatively young deposits of the Jurassic accretionary complex located in southwest Japan.

경상분지 하양층군의 퇴적시기와 기원지 변화를 밝히기 위해 청송 세계지질공원의 지질명소인 백석탄(일직층), 만안자암(점곡층), 신성리(사곡층) 지역에서 쇄설성 저어콘에 대한 U-Pb 연령측정을 실시하였다. 일직층에서는 백악기 저어콘이 발견되지 않고 쥐라기와 트라이아스기의 저어콘이 대부분이며, 선캄브리아 시대의 저어콘은 드물게 산출된다. 반면 점곡층과 사곡층은 백악기와 쥐라기, 고원생대의 저어콘이 우세하며 유사한 연령분포를 보인다. 점곡층과 사곡층의 백악기 저어콘에서 각각 103.2±0.3 Ma와 104.2±0.5 Ma의 가장 젊은 가중평균연령을 구했다. 연구결과에 의하면 점곡층 및 사곡층의 퇴적시기는 앨비안에 해당된다. 쇄설성 저어콘의 연령분포는 일직층과 점곡층 사이에 기원지의 중요한 변화가 있었음을 지시한다. 일직층은 주로 주변의 관입암체에서 퇴적물이 공급된 것으로 보이지만, 점곡층과 사곡층은 일본 남서부의 쥐라기 부가대의 비교적 젊은 퇴적단위로부터 기원한 것으로 해석된다.

Keywords

Acknowledgement

이 논문은 부산대학교 기본연구지원사업(2년)에 의해 지원되었습니다. 연구 수행과정에 도움을 주신 청송군과 좋은 의견을 주신 두 분의 심사위원께 감사드립니다.

References

  1. Asiedu, D.K., Suzuki, S., and Shibata, T., 2000, Provenanve of sandstones from the Wakino Subgroup of the Lower Cretaceous Kanmon Group, northern Kyushu, Japan. Island Arc, 9, 128-144. https://doi.org/10.1046/j.1440-1738.2000.00266.x
  2. Chang, K.H., 1975, Cretaceous stratigraphy of Southeast Korea. Journal of the Geological Society of Korea, 11, 1-23.
  3. Chang, K.H., Ko, I.S., Lee, J.Y., and Kim, S.W., 1977, Explanatory text and Geological map of Gusandong Sheet (1:50,000). Korea Research Institute of Geoscience and Mineral Resources, 29 p.
  4. Chang, K.H., 1988, Cretaceous stratigraphy and Paleocurrent Analysis of Kyongsang Basin, Korea. Journal of the Geological Society of Korea, 24(3), 194-205.
  5. Chang, K.H., Lee, Y.J., Suzuki, K., and Park, S.O., 1998, Zircon Morphology, CHIME age and geological significance of Kusandong Tuff. Journal of the Geological Society of Korea, 34, 333-343.
  6. Chang, K.H., Suzuki, K., Park, S.O., Ishida, K., and Uno, K., 2003, Recent advances in the Cretaceous stratigraphy of Korea. Journal of Asian Earth Science, 21, 937-948. https://doi.org/10.1016/S1367-9120(02)00142-6
  7. Chae, Y.-U., Lim, J.D., Kim, C.-B., Kim, K.S., Ha, S., and Lim, H.S., 2020, Detrital zircon U-Pb ages of the uppermost Jinju Formation in the Natural Monument No. 534 'Tracksite of Pterosaurs, Birds, and Dinosaurs in Hotandong, Jinju', Korea. Journal of the Korean Earth Science Society, 41(4), 367-380. https://doi.org/10.5467/jkess.2020.41.4.367
  8. Cheong, C.-S. and Kim, N.H., 2012, Review of radiometric ages for Phanerozoic granitoids in southern Korean Peninsula. The Journal of the Petrological Society of Korea, 21(2), 173-192. https://doi.org/10.7854/JPSK.2012.21.2.173
  9. Cheong, C.-S., Kim, N., Kim, J., Yi, K., Jeong, Y.-J., Park, C.-S., Li, H.-K., Cho, M., 2014, Petrogenesis of Late Permian sodic metagranitoids in southeastern Korea: SHRIMP zircon geochronology and elemental and Nd-Hf isotope geochemistry. Journal of Asian Earth Sciences, 95, 228-242. https://doi.org/10.1016/j.jseaes.2014.06.005
  10. Cheong, C.-S., Yi, K., Kim, N., Lee, T.-H., Lee, S.R., Geng, J.-Z., and Li, H.-K., 2013, Tracking source materials of Phanerozoic granitoids in South Korea by zircon Hf isotopes. Terra Nova, 25, 228-235. https://doi.org/10.1111/ter.12027
  11. Choi, D.K., 1985, Spores and pollen from the Gyeongsang Supergroup, southeastern Korea and their chronologic and paleoecologic implications. Journal of the Paleontological Society of Korea, 1, 33-50.
  12. Choi, D.K., 1989, Paleopalynology of the Geoncheonri Formation (Lower Cretaceous), Geoncheon-Ahwa area, Korea. Journal of the Paleontological Society of Korea, 5, 1-27.
  13. Choi, D.K. and Park, J.B., 1987, Palynology of the Jinju Formation (Lower Cretaceous), Waegwan-Daegu and Jinju areas, Korea. Journal of the Paleontological Society of Korea, 3, 28-43.
  14. Choi, H.I., 1986, Sedimentation and evolution of the Cretaceous Gyeongsang Basin, southeastern Korea. Journal of the Geological Society, 143, 29-40. https://doi.org/10.1144/gsjgs.143.1.0029
  15. Choi, S.J., 1987, Study on the Lower Cretaceous charophytes from the upper Gyeongsang Supergroup. Journal of the Paleontological Society of Korea, 3, 79-92.
  16. Choi, T. and Kwon, M.G., 2019, Depositional age and provenance of the sandstone in the Cretaceous Euiseong subbasin inferred by detrital zircon U-Pb age dating. journal of the Geological Society of Korea, 55(5), 551-581. https://doi.org/10.14770/jgsk.2019.55.5.551
  17. Choi, T., Lee, Y.I., Lim, H.S., and Orihashi, Y., 2020, Detrital zircon geochronology of the Cretaceous Sindong Group, Gyeongsang Basin, Korea and its implications for paleodrainage systems. Episodes Journal of International Geoscience, 43(2), 711-738.
  18. Chough, S.K. and Sohn, Y.K., 2010, Tectonic and sedimentary evolution of a Cretaceous continental arcbackarc system in the Korean peninsula: New view. Earth-Science Reviews, 101(3), 225-249. https://doi.org/10.1016/j.earscirev.2010.05.004
  19. Hartmann, L.A., and Santos, J.O.S., 2004, Predominance of high Th/U, magmatic zircon in Brazilian Shield sandstones. Geology, 32(1), 73-76. https://doi.org/10.1130/g20007.1
  20. Hoskin, P.W., and Schaltegger, U., 2003, The composition of zircon and igneous and metamorphic petrogenesis. Reviews in mineralogy and geochemistry, 53(1), 27-62. https://doi.org/10.2113/0530027
  21. Ishida, K., Kozai, T., Park, S.-O., and Mitsugi, T., 2003, Gravel bearing radiolaria as tracers for erosional events: a review of the status of recent research in SW Japan and Korea. Journal of Asian Earth Sciences, 21, 909-920. https://doi.org/10.1016/S1367-9120(02)00084-6
  22. Jwa,Y.-J., Lee, Y.I., and Orihashi, Y., 2009, Eruption age of the Kusandong Tuff in the Cretaceous Gyeongsang Basin, Korea. Geosciences Journal, 13(3), 265-273. https://doi.org/10.1007/s12303-009-0026-0
  23. Jeon, Y.M. and Sohn, Y.K., 2003, Sedimentary characteristics and stratigraphic implications of the Kusandong Tuff, Cretaceous Gyeongsang Basin, Korea. Geosciences Journal, 7, 53-64. https://doi.org/10.1007/BF02910265
  24. Jeon, Y.M. and Sohn, Y.K., 2008, Characteristics, emplacement processes, and stratigraphic implications of the basalts intercalated in the Hayang Group, Cretaceous Gyeongsang Basin, SE Korea. Journal of the Geological Society of Korea, 44(6), 707-727.
  25. Kang, H.-C., Cheon, Y., Ha, S., Seo, K., Kim, J.-S., Shin, H.C., and Son, M., 2018, Geology and U-Pb Age in the Eastern Part of Yeongdeok-gun, Gyeongsangbuk-do, Korea. Journal of Petrological Society of Korea, 27(3), 153-171. https://doi.org/10.7854/JPSK.2018.27.3.153
  26. Kim, H.J., Hwang, K.G., Jeong, H.H., Ahn, H.Y., Choi, C.U., Lim, H.S., Choi, T., Chae, Y.-U., and Paik, I.S., 2019, Dinosaur track-bearing deposits in Sagok Formation (Cretaceous) at Sinseong-ri, Cheongsong-gun, Korea: Occurrences and paleoenvironments. Journal of the Geological Society of Korea, 55(5), 495-511. https://doi.org/10.14770/jgsk.2019.55.5.495
  27. Kim, J.-S., Cho, H., Kim, H.-G., and Son, M., 2013, SHRIMP U-Pb zircon ages of the Gusandong (Kusandong) Tuff in the Cretaceous Gyeongsang Basin. Journal of Petrological Society of Korea, 22, 235-249. https://doi.org/10.7854/JPSK.2013.22.3.235
  28. Kim, Y., Lee, Y.I., and Hisada, K., 2007, Provenance of quartzarenite clasts in the Tetori Group (Middle Jurassic to Early Cretaceous), Japan: Paleogeographic implications. Journal of Asian Earth Sciences, 29, 116-126. https://doi.org/10.1016/j.jseaes.2006.01.005
  29. Koh, I.S., Lee, Y.T., and Shin, Y.S., 1996, Paleocurrent Analysis of the Cretaceous Hayang Group in the Northeastern Part of Euiseong Subbasin, Southeast Korea. Korean Journal of Petrological Geology, 4(1/2), 12-19.
  30. Lee, C., Ryu, I.-C., and Shin, Y.J., 2017, U-Pb ages of detrital zircons in Lower Cretaceous non-marine successions of the Gyeongsang Basin, Northeast Asia: Implications for sediment provenance. Sedimentary Geology, 353, 125-138. https://doi.org/10.1016/j.sedgeo.2017.03.008
  31. Lee, D.W., 1999, Strike-slip fault tectonics and basin formation during the Cretaceous in the Korean Peninsula. Island Arc, 8, 218-231. https://doi.org/10.1046/j.1440-1738.1999.00233.x
  32. Lee, D.W. and Paik, K.H., 1990, Evolution of strike-slip fault-controlled Cretaceous Yongdong Basin, South Korea: Signs of strike-slip tectonics during infilling. Journal of the Geological Society of Korea, 26, 257-276.
  33. Lee, J.I. and Lee, Y.I., 2000, Provenance of the Lower Cretaceous Hayang Group, Gyeongsang Basin, southeastern Korea: implications for continental-arc volcanism. Journal of Sedimentary Research, 70, 151-158. https://doi.org/10.1306/2dc40906-0e47-11d7-8643000102c1865d
  34. Lee, J.I. and Lee, Y.I., 2003, Geochemistry and provenance of Lower Cretaceous Sindong and Hayang mudrocks, Gyeongsang Basin, Southeastern Korea. Geosciences Journal, 7(2), 107. https://doi.org/10.1007/BF02910213
  35. Lee, T.-H., Park, K.-H., Chun, J.-H., and Yi, K., 2010, SHRIMP U-Pb Zircon Ages of the Jinju Formation and Silla Conglomerate, Gyeongsang Basin. Journal of the Petrological Society of Korea, 19(1), 89-101.
  36. Lee, T.-H., Park, K.-H., and Yi, K., 2018a, Nature and evolution of the Cretaceous basins in the eastern margin of Eurasia: A case study of the Gyeongsang Basin, SE Korea. Journal of Asian Earth Sciences, 166, 19-31. https://doi.org/10.1016/j.jseaes.2018.07.004
  37. Lee, T.-H., Park, K.-H., and Yi, K., 2018b, 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(5), e12258. https://doi.org/10.1111/iar.12258
  38. Lee, Y.I., Choi, T., Lim, H.S., and Orihashi, Y., 2010, Detrital zircon geochronology of the Cretaceous Sindong Group, Southeast Korea: Implications for depositional age and Early Cretaceous igneous activity. Island Arc, 19, 647-658. https://doi.org/10.1111/j.1440-1738.2010.00717.x
  39. Lee, Y.I. and Kim, J.Y., 2005, Provenance of the Hayang Group (Early Cretaceous) in the Yeongyang Subbasin, SE Kora and its bearing on the Cretaceous palaeogeography of SW Japan. Palaeogeography, Palaeoclimatology, Palaeoecology, 228, 278-295. https://doi.org/10.1016/j.palaeo.2005.06.017
  40. Lee, Y.I. and Lim, D.H., 2008, Sandstone diagenesis of the Lower Cretaceous Sindong Group, Gyeongsang Basin, southeastern Korea: Implications for compositional and paleoenvironmental controls. Island Arc, 17, 152-171. https://doi.org/10.1111/j.1440-1738.2007.00608.x
  41. Lee, Y.I., Yi, J., and Choi, T., 2015, Provenance analysis of Lower Cretaceous Sindong Group, Gyeongsang Basin, Korea using integrated petrography, quartz SEM-cathodoluminescence, and zircon Zr/Hf analysis. Journal of Sedimentary Research, 85, 529-543. https://doi.org/10.2110/jsr.2015.36
  42. Lee, Y.I., 2008, Paleogeographic reconstructions of the East Asia continental margin during the middle to late Mesozoic. Island Arc, 17, 458-470. https://doi.org/10.1111/j.1440-1738.2008.00637.x
  43. Ludwig, K.R., 2008, Isoplot/Ex version 3.7. A geochronological toolkit for Microsoft Excel. Berkeley Geochronological Centre, Special Publication.
  44. Ludwig, K.R. and Mundil, R., 2002, Extracting reliable U-Pb ages and errors from complex populations of zircons from Phanerozoic tuffs. Geochimica et Cosmochimica Acta, 66(15), p. 461.
  45. Mitsugi, T., Ishida, K., Woo, B.-G., Chang, K.-H., Park, S.- O., and Hirano, H., 2001, Radiolarian-bearing conglomerate from the Hayang Group, the Kyongsang Supergroup, southeastern korea. Journal of Asian Earth Sciences, 19, 751-763. https://doi.org/10.1016/S1367-9120(01)00004-9
  46. Okada, H., 2000, Nature and development of Cretaceous sedimentary basins in East Asia: a review. Geosciences Journal, 4, 271-282. https://doi.org/10.1007/BF02914036
  47. Otsuki, K., 1985, Plate Tectonics of Eastern Eurasia in the Light of Fault Systems. Tohoku University Scientific Report: 2nd Series (Geology), 55, 141-251.
  48. Otsuki, K., 1992, Oblique subduction, collision of microcontinents and subduction of oceanic ridge: their implications on the Cretaceous tectonics of Japan. Island Arc, 1(1), 51-63. https://doi.org/10.1111/j.1440-1738.1992.tb00057.x
  49. Paton, C., Hellstrom, J., Paul, B., Woodhead, J., and Hergt, J., 2011, Iolite: Freeware for the visualisation and processing of mass spectrometric data. Journal of Analytical Atomic Spectrometry, 26(12), 2508-2518. https://doi.org/10.1039/c1ja10172b
  50. Ryang, W.H., 2013, Characteristics of strike-slip basin formation and sedimentary fills and the Cretaceous small basins of the Korean Peninsula. Journal of the Geological Society of Korea, 49(1), 31-45.
  51. Sagong, H., Kwon, S.-T., and Ree, J.-H., 2005, Mesozoic episodic magmatism in South Korea and its tectonic implication. Tectonics, 24(5), doi:10.1029/2004TC001720.
  52. Seo, S.J., 1985, Lower Cretaceous Geology and Paleontology (Charophyta) of Central Kyongsang Basin, Korea. PhD Thesis, Kyungpook National University, Daegu, 1-177.
  53. Slama, J., Kosler, J., Condon, D.J., Crowley, J.L., Gerdes, A., Hanchar, J.M., and Schaltegger, U., 2008. Plesovice zircon-a new natural reference material for U-Pb and Hf isotopic microanalysis. Chemical Geology 249(1), 1-35. https://doi.org/10.1016/j.chemgeo.2007.11.005
  54. Sohn, Y.K., Son, M., Jeong, J.O., and Jeon, Y.M., 2009, Eruption and emplacement of a laterally extensive, crystal-rich, and pumice-free ignimbrite (the Cretaceous Kusandong Tuff, Korea). Sedimentary Geology, 220, 190-203. https://doi.org/10.1016/j.sedgeo.2009.04.020
  55. Song, Y.S. and Yi, K., 2015, SHRIMP U-Pb age of the Chunyang granite, NE Yeongnam massif, Korea. Journal of the Geological Society of Korea, 51(4), 397-402. https://doi.org/10.14770/jgsk.2015.51.4.397
  56. Tokiwa, T., Shimura, Y., Takeuchi, M., Shimosata, S., Yamamoto, K., Mori, H., 2019, Provenance of trenchfill deposits of the Jurassic Chichibu accretionary complex, Southwest Japan. Journal of Asian Earth Sciences, 184, 103970. https://doi.org/10.1016/j.jseaes.2019.103970
  57. Wakita, K., Nakagawa, T., Sakata, M., Tanaka, N., and Oyama, N., 2019, Phanerozoic accretionary history of Japan and the western Pacific margin. Geological Magazine, 1-17.
  58. Wiedenbeck, M., Alle, P., Corfu, F., Griffin, W.L., Meier, M., Oberli, F., Von Quadt, A., Roddick, J.C., and Spiegel, W., 1995, Three natural zircon standards for U-Th-Pb, Lu-Hf, trace element and REE analyses. Geostandards Newsletter, 19, 1-24. https://doi.org/10.1111/j.1751-908X.1995.tb00147.x
  59. Wiedenbeck, M., Hanchar, J.M., Peck, W.H., Sylvester, P., Valley, J., Whitehouse, M., Kronz, A., Morishita, Y., and Nasdala, L., 2004, Further characterization of the 91500 zircon crystal. Geostandards and Geoanalytical Research, 28, 9-39. https://doi.org/10.1111/j.1751-908X.2004.tb01041.x
  60. Yang, S.Y., 1978, On the discovery of Nippononaia ryosekiana from the Geongsang Group, Korea. Journal of the Geological Society of Korea, 14, 33-43.
  61. Yi, K., Cheong, C.-S., Kim, J., Kim, N., Jeong, Y.J., Cho, M., 2012, Later Paleozoic to Early Mesozoic arc-related magmatism in southeastern Korea: SHRIMP zircon geochronology and geochemistry. Lithos, 153, 129-141. https://doi.org/10.1016/j.lithos.2012.02.007
  62. Yi, M.-S., Choi, S.-J., and Yun, H., 1993, Cretaceous palynomorphs from the Iljik Formation in the Euiseong area, Korea. Journal of the Paleontological Society of Korea, 9, 166-179.
  63. Yoon, R., Song, Y.S., and Yi, K., 2014, SHRIMP U-Pb zircon ages of the Yeongju and Andong granites, Korea and their implications. The Journal of the Petrological Society of Korea, 23(3), 209-220. https://doi.org/10.7854/JPSK.2014.23.3.209