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http://dx.doi.org/10.7854/JPSK.2014.23.4.311

Medium Temperature and Lower Pressure Metamorphism and Tectonic Setting of the Pyeongan Supergroup in the Munkyeong Area  

Kim, Hyeong Soo (Department of Earth Science Education, Kyungpook National University)
Seo, Bongkyun (Department of Earth Science Education, Kyungpook National University)
Yi, Keewook (Division of Earth and Environmental Science, Korea Basic Sciences Institute)
Publication Information
The Journal of the Petrological Society of Korea / v.23, no.4, 2014 , pp. 311-324 More about this Journal
Abstract
The Hongjeom formation of the Pyeongan Supergroup in the Munkyeong coalfield mainly consists of metapsammite and metapelites. Metampelites occur as slate preserving chloritoid+chlorite+muscovite and andalusite+biotite+chlorite+muscovite mineral assemblages. Chloritoid and andalusite occur as porphyroblast, and the matrix composed of fine-grained micas. Metamorphic P-T conditions for these mineral assemblages are $510-520^{\circ}C$ and 3.0-3.5kbar based on P-T pseudosection in $MnO-K_2O-FeO-MgO-Al_2O_3-SiO_2-H_2O(MnKFMASH)$ system and isopleth intersections of Fe/(Fe+Mg) ratios in chloritoid and chlorite. The medium temperature and low pressure metamorphism resulted from a higher geothermal gradient ($40-45^{\circ}C/km$) condition than that of burial metamorphism. The youngest (SHRIMP U-Pb age; ca. 327-310 Ma) detrital zircon grains from the Hongjeom formation display oscillatory zoning and relatively high Th/U ratio (0.60-1.12). Based on the previous sedimentary, paleontological, and geochronological studies in the Taebaeksan basin together with results of this study, we suggest that (1) initial deposition of the Hongjeom formation was contemporaneous with a magmatic activity in the provenance, (2) the Pyeongan Supergroup was deposited in an arc-related basin at an active continental margin during the Carboniferous to Permain, and (3) magmatic activities occurred repetitively in relatively short interval in the active continental margin had continuously supplied sediments to the basin.
Keywords
Munkyeong coalfield; Pyeongan Supergroup; Hongjeon formation; Low pressure metamorphism; Active continental margin;
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Times Cited By KSCI : 4  (Citation Analysis)
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1 Cheong, C.H., 1969, Stratigraphy and paleontology of the Samcheog coalfield, Gangweondo, Korea (1). Journal of the Geological Society of Korea, 5, 13-56.   과학기술학회마을
2 Cheong, C.H., 1973, A paleontological study of the Fusulinids from the Samcheig coalfield, Korea. Journal of the Geological Society of Korea, 9, 47-88.   과학기술학회마을
3 Cheong, C.S., Kweon, S.-T. and Park, K.-H., 2000, Pb and Nb isotope constraints on Paleoproterozoic crustal evolution of the northen Yeongnam Massif, South Korea. Precambrian Research, 102, 207-220.   DOI   ScienceOn
4 Cho, D.L, Lee, S.R. and Armstrong, R., 2008, Termination of the Permo-Triassic Songrim (Indosinian) orogeny in the Ogcheon belt, South Korea: Occurrence of ca. 220 Ma post-orogenic alkali granites and their tectonic implications, Lithos, 105, 191-200.   DOI   ScienceOn
5 Cho, D.L., Park, J.B., Ko, H. and Lee S.R., 2009, The First Report on Late Ordovican (442-452 Ma) Volcanism in the Uppermost Part of Chosun Supergroup Identified from the Ognyeobong Formation of Ogcheon Belt, South Korea. Mineralogical Society of Korea and Petrological Society of Korea Abstract with program, 74-75.
6 Choi, D.K., 2014, Geology and Tectonic Evolution of the Korean Peninsula. Seoul National University Press, 227p.
7 Choi, S.H., Mun, H.R., Lee, Y.B., Lee, J.H. and Kim, Y.M., 2012, Mineralogical Study on Shales of the Sadong and Gobangsan Formation, Munkyung Area. Journal of Mineralogical Society of Korea, 25, 1-8.   과학기술학회마을   DOI
8 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 Review, 52, 175-235.   DOI   ScienceOn
9 Ghent, E.D., Stout, M.Z., Black, P.M. and Brothers, R.M., 1987, Chloritoid bearing rocks associated with blueschists and eclogite. northern New Caledonia. Journal of Metamorphic Geology, 5, 239-254.   DOI
10 Kim, N.-H., 2010, Petrology, geochemisty and geochronology study of the Precambrian basement rocks in the northeastern Yeongnam Massif, South Korea: their tectonic implications. Ph D thesis, Pukyung National University.
11 Kim, N.-H., Cheong, C.-S., Park, K.H., Kim, J., Song, Y.- S., 2012. Crustal evolution of northeastern Yeongnam Massif, Korea, revealed by SHRIMP U-Pb zircon geochronology and geochemistry. Gondwana Research, doi:10.1016/j.gr.2011.10.003   DOI   ScienceOn
12 Kim, N.-H., Song, Y.-S., Park, K.-H. and Lee, H.-S., 2009, SHRIMP U-Pb zircon ages of the granite gneiss from the Pyeonghae area of the northeastern Yeongnam Massif (Sobaeksan Massif). Journal of Petrological Society Korea, 18, 31-47 (in Korean with English abstract).   과학기술학회마을
13 Kim, H.S., 2012, Metamorphism and Deformation of the Late Paleozoic Pyeongan Supergroup in the Taebaeksan Basin: Reviews on the Permo-Triassic Songrim Orogeny. Journal of Petrological Society Korea, 21, 151-171.   과학기술학회마을   DOI
14 Kim, H.S. and Ree, J.-H., 2010. P-T modeling of kyanite and sillimanite paramorphs growth after andalusite in late Paleozoic Pyeongan Supergroup, South Korea: implication for metamorphism during the Mesozoic tectonic evolution. Lithos, 118, 269-286.   DOI
15 Kim, H.S., Ree, J.-H. and Kim, J., 2012, Tectonometamorphic evolutionof the Permo-Triassic Songrim (Indosinian) orogeny: Evidence from the late Paleozoic Pyeongan Supergroup in the northeastern Taebaeksan Basin, South Korea. International Journal of Earth Science, 101, 483-498, DOI 10.1007/s00531-011-0683-x   DOI   ScienceOn
16 Lee, H.S. and Chough, S.K., 2006b, Lithostratigraphy and depositional environments of the Pyeongan Supergroup (Caboniferous-Permian) in the Taebaek area, mideast Korea. Journal of Asia Earth Science, 26, 339-352.   DOI   ScienceOn
17 Korea Institute Geological and Mining Resource (GMIK), 1975. The Geological Report on the Gangneung coaleld, Geological Atlas of the Danyang coaleld,6 sheets (K-E).
18 Kretz, R., 1983. Symbols for rock-forming minerals. American Mineralogist 68, 277-279.
19 Lee, H.S. and Chough, S.K., 2006a, Sequence stratigraphy of Pyeongan Supergroup (Caboniferous-Permian), Taebaek area, mideast Korea. Geoscience Journal, 10, 369-389.   과학기술학회마을   DOI
20 Lee, Y.I. and Sheen, D.H., 1998. Detrital modes of the Pyeongan Supergroup (late Carboniferous-early Triassic) sandstones in the Samcheog coaleld, Korea: implications for provenance and tectonic setting. Sedimentary Geology 119, 219-238.   DOI   ScienceOn
21 Lee, Y.I., Choi, T. and Orihash, Y., 2012, Depositional ages of upper Pyeongan Supergroup strata in the Samcheok coalfield, eastern cemtral Korea. Journal of Geological Society of Korea, 48, 93-99.
22 Lee, D.-S., 1988, Geology of Korea. Geological Society of Korea, Kyohank-sa, 514p.
23 Ludwig, K.R., 2001a, SQUID 1.00: A user's manual. Berkeley Geochronology Center special publication, No. 2, Berkeley, USA, 17.
24 Ludwig, K.R., 2001b, User's manual for Isoplot/Ex, version 2.49: a geochronological toolkit for microsoft excel. Berkeley Geochronology Center special publication, No. 1a, Berkeley, USA, 59.
25 Vidal, O., Goffe, B., Bousquet, R. and Parra, T., 1999, Calibration and testing of an empirical chloritoid-chlorite Mg-Fe exchange thermometer and thermodynamic data for daphnite, Journal of Metamorphic Geology, 17, 25-39.   DOI
26 Paradis, S., Velde, B. and Nicot, E., 1983, Chloritoid- pyrophyllite- rectorite facies from Brittany, France. Contribution to Mineralogy and Petrology, 83, 342-347.   DOI
27 Powell, R. and Holland, T.J.B., 1988, An internally consistent dataset with uncertainties and correlation; 3, Applications to geobarometry, worked examples and a computer program. Journal of Metamorphic Geology 6, 173-204.   DOI
28 Powell, R., Holland, T.J.B. and Worley, B., 1998, Calculating phase diagrams involving solid solutions via non-linear equations, with examples using THERMOCALC. Journal of Metamorphic Geology, 16, 577-588.   DOI   ScienceOn
29 Williams, I,S, and Meyer, C., 1998, U-Pb geochronology of zircons from lunar breccias 73217 using s sensitive high mass-resolution ion microprobe. Journal of Geophysics Research, 89, B525-B534.
30 Williams, I.S., 1998, U-Th-Pb geochronology by ion microprobe. In; McKibben M.A., Shanks, III, W.C. and Ridely, W.I. (eds), Applications of microanalytical techniques to understanding mineralizing processes. Reviews in Economic Geology. 7. 1-35.   DOI   ScienceOn
31 Yi, K., Cheong, C.-S., Kim, J., Kim, N., Jeong, Y.-J. and Cho, M., 2012. Late Paleozoic to Early Mesozoic acrrelated magmatism in southeastern Korea: SHRIMP zircon geochronology and geochemistry. Lithos, 153, 129-141.   DOI   ScienceOn
32 Yu, K.M., Lee, G.H. and Boggs, S., 1997, Petrology of Late Paleozoic Early Mesozoic Pyeongan Group sandstones, Kohan area, South Korea and its Provenance and tectonic implications, Sedimentary Geology, 109, 321-338.   DOI
33 Cawood, P.A., Hawkesworth, C.J. and Dhuime, B., 2012, Detrital zircon record and tectonic setting. Geology, 40, 875-878.   DOI   ScienceOn
34 Allen, P.A. and Allen, J.R., 2005, Basin Analysis: Principles and Applications. 2nd ed., Blackwell Publishing, 549 pp.