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      한반도 중서부 홍성지역 내에 분포하는 사문암체의 지질연대학 및 지구조적 의미 = Geochronological and Geotectonic Implications of the Serpentinite Bodies in the Hongseong Area, Central-western Korean Peninsula

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      https://www.riss.kr/link?id=A102494491

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      다국어 초록 (Multilingual Abstract)

      The Hongseong area of the central-western Korean Peninsula is considered to be a part of collision zone that is tectonically correlated to the Qinling-Dabie-Sulu belt of China. The area includes the elliptical-shaped serpentinized ultramafic bodies, together with mafic rocks. The studied bodies are in contact with the surrounded Neoproterozoic alkali granites at the Baekdong and Wonnojeon bodies and the Paleoproterozoic Yugu gneiss at the Bibong body. The Baekdong body contains the blocks of the Neoproterozoic alkali granites and the Late Paleozoic metabasites. The Bibong body also includes the Neoproterozoic alkali granite blocks. The Mesozoic intrusive rocks are also recognized at the Baekdong, Wonnojeon and Bibong bodies. On the other hand, the Early Cretaceous volcanic rocks are occurred at the Bibong body. The detrital zircon SHRIMP U-Pb ages of the serpentinites at three bodies range variously from Neoarchean to Middle Paleozoic at the Baekdong body, and from Neoarchean to Early Cretaceous at the Wonnojeon and Bibong bodies. Although serpentinization does not generally produce minerals suitable for direct isotopic dating, the youngest Middle Paleozoic age at the Baekdong body and the Early Cretaceous age at the Wonnojeon and Bibong bodies indicate the possible upper age limit for the (re)serpentinization. Especially, the Early Cretaceous serpentinization ages may be related to the widespread Early Cretaceous igneous activity in the central-southern Korean Peninsula. Age results for the serpentinite bodies and the included blocks of the studied serpentinized ultramafic bodies in the Hongseong area, therefore, provide several possible interpretations for the serpentinization ages of the ultramafic rocks as well as the geotectonic implications of serpentinization, requiring more detailed study including other serpentinized ultramafic bodies in the Hongseong area.
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      The Hongseong area of the central-western Korean Peninsula is considered to be a part of collision zone that is tectonically correlated to the Qinling-Dabie-Sulu belt of China. The area includes the elliptical-shaped serpentinized ultramafic bodies, t...

      The Hongseong area of the central-western Korean Peninsula is considered to be a part of collision zone that is tectonically correlated to the Qinling-Dabie-Sulu belt of China. The area includes the elliptical-shaped serpentinized ultramafic bodies, together with mafic rocks. The studied bodies are in contact with the surrounded Neoproterozoic alkali granites at the Baekdong and Wonnojeon bodies and the Paleoproterozoic Yugu gneiss at the Bibong body. The Baekdong body contains the blocks of the Neoproterozoic alkali granites and the Late Paleozoic metabasites. The Bibong body also includes the Neoproterozoic alkali granite blocks. The Mesozoic intrusive rocks are also recognized at the Baekdong, Wonnojeon and Bibong bodies. On the other hand, the Early Cretaceous volcanic rocks are occurred at the Bibong body. The detrital zircon SHRIMP U-Pb ages of the serpentinites at three bodies range variously from Neoarchean to Middle Paleozoic at the Baekdong body, and from Neoarchean to Early Cretaceous at the Wonnojeon and Bibong bodies. Although serpentinization does not generally produce minerals suitable for direct isotopic dating, the youngest Middle Paleozoic age at the Baekdong body and the Early Cretaceous age at the Wonnojeon and Bibong bodies indicate the possible upper age limit for the (re)serpentinization. Especially, the Early Cretaceous serpentinization ages may be related to the widespread Early Cretaceous igneous activity in the central-southern Korean Peninsula. Age results for the serpentinite bodies and the included blocks of the studied serpentinized ultramafic bodies in the Hongseong area, therefore, provide several possible interpretations for the serpentinization ages of the ultramafic rocks as well as the geotectonic implications of serpentinization, requiring more detailed study including other serpentinized ultramafic bodies in the Hongseong area.

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      참고문헌 (Reference)

      1 송석환, "충남 홍성 및 광천 지역 초염기성암의 암석 및 지구화학" 대한자원환경지질학회 37 (37): 477-497, 2004

      2 송석환, "충남 서부 신곡 지역에 분포하는 초염기성암의 광물조성 및 지구화학" 대한자원환경지질학회 34 (34): 395-415, 2001

      3 Oh, C. W., "U–Pb SHRIMP zircon geochronology, petrogenesis, and tectonic setting of the Neoproterozoic Baekdong ultramafic rocks in the Hongseong collision belt, South Korea" 128-131 : 100-112, 2012

      4 Ludwig, K. R., "User’s Manual for SQUID 2" Berkeley Geochronology Center Special Publication 2009

      5 Ludwig, K.R, "User’s Manual for Isoplot 3.6: a Geochronological Toolkit for Microsoft Excel" Berkeley Geochronology Center Special Publication 2008

      6 Seo, J., "Two ultramafic rock types in the Hongseong area, South Korea: tectonic significance for northeast Asia" 175-176 : 30-39, 2013

      7 Choi, S. J., "Tectonic evolution of the western Gyeonggi block and construction of geologic DB system" Basic Research Report of the Korea Institute of Geoscience and Mineral Resources 420-, 2014

      8 Kee, W. S., "Tectonic evolution of the upper crustal units in the mid-western part of the Korean peninsula" Basic Research Report of the Korea Inst. Geosci. Mineral Res 242-, 2011

      9 Steiger, R., "Subcommission of geochronology:convention on the use of decay constants in geo- and cosmo-chronology" 36 : 359-362, 1977

      10 Oh, C. W., "Spinel compositions and tectonic relevance of the Bibong ultramafic bodies in the Hongseong collision belt, South Korea" 117 : 198-208, 2010

      1 송석환, "충남 홍성 및 광천 지역 초염기성암의 암석 및 지구화학" 대한자원환경지질학회 37 (37): 477-497, 2004

      2 송석환, "충남 서부 신곡 지역에 분포하는 초염기성암의 광물조성 및 지구화학" 대한자원환경지질학회 34 (34): 395-415, 2001

      3 Oh, C. W., "U–Pb SHRIMP zircon geochronology, petrogenesis, and tectonic setting of the Neoproterozoic Baekdong ultramafic rocks in the Hongseong collision belt, South Korea" 128-131 : 100-112, 2012

      4 Ludwig, K. R., "User’s Manual for SQUID 2" Berkeley Geochronology Center Special Publication 2009

      5 Ludwig, K.R, "User’s Manual for Isoplot 3.6: a Geochronological Toolkit for Microsoft Excel" Berkeley Geochronology Center Special Publication 2008

      6 Seo, J., "Two ultramafic rock types in the Hongseong area, South Korea: tectonic significance for northeast Asia" 175-176 : 30-39, 2013

      7 Choi, S. J., "Tectonic evolution of the western Gyeonggi block and construction of geologic DB system" Basic Research Report of the Korea Institute of Geoscience and Mineral Resources 420-, 2014

      8 Kee, W. S., "Tectonic evolution of the upper crustal units in the mid-western part of the Korean peninsula" Basic Research Report of the Korea Inst. Geosci. Mineral Res 242-, 2011

      9 Steiger, R., "Subcommission of geochronology:convention on the use of decay constants in geo- and cosmo-chronology" 36 : 359-362, 1977

      10 Oh, C. W., "Spinel compositions and tectonic relevance of the Bibong ultramafic bodies in the Hongseong collision belt, South Korea" 117 : 198-208, 2010

      11 Kim, S. W., "SHRIMP zircon geochronology and geochemical characteristics of metaplutonic rocks from the south-western Gyeonggi block, Korea: implications for Paleoproterozoic to Mesozoic tectonic links between the Korean Peninsula and eastern China" 162 : 475-497, 2008

      12 Kim, S. W., "SHRIMP U–Pb dating and geochemistry of the Cretaceous plutonic rocks in the Korean Peninsula: A new tectonic model of the Cretaceous Korean Peninsula" 262 : 88-106, 2016

      13 Kim, S. W., "Phanerozoic high-pressure eclogite and intermediate-pressure granulite facies metamorphism in the Gyeonggi block, South Korea: implications for the eastward extension of the Dabie-Sulu continental collision zone" 92 : 357-377, 2006

      14 Arai, S., "Petrology of the Yugu peridotites in the Gyeonggi Massif, South Korea: implications for its origin and hydration process" 17 : 485-501, 2007

      15 Wu, Y.-K., "Petrological study on the ultramafic rocks in Choongnam area" 21 : 323-336, 2000

      16 Park, S. -I., "Paleozoic tectonics of the southwestern Gyeonggi massif, South Korea: insight from geochemistry, chromian-spinel chemistry and SHRIMP U–Pb geochronology" 26 : 684-698, 2014

      17 Oh, C. W., "Neoproterozoic tectonic evolution of the Hongseong area, the southwestern part of Gyeonggi Massif, South Korea; implication for the tectonic evolution of Northeast Asia" 16 : 272-284, 2009

      18 Kim, S. W., "Neoproterozoic plutonic rocks from the western Gyeonggi massif, South Korea: implications for the amalgamation and break-up of the Rodinia supercontinent" 227 : 349-367, 2013

      19 Kwon, S., "Multiple generations of mafic–ultramafic rocks from the Hongseong suture zone, western South Korea: implications for the geodynamic evolution of NE Asia" 160-161 : 68-83, 2013

      20 Oh, C. W., "Metamorphic evolution of the Baekdong metabasite in the Hongseong area, South Korea and its relationship with the Sulu collision belt of China" 7 : 809-816, 2004

      21 Williams, I. S., "Geochronology, and geochemical and Nd–Sr isotopic characteristics, of Triassic plutonic rocks in the Gyeonggi Massif, South Korea: constraints on Triassic post-collisional magmatism" 107 : 239-256, 2009

      22 Song, S. H., "Genetic implications of ultramafic rocks from the Bibong area in the Gyeonggi gneiss complex" 30 : 477-491, 1997

      23 Seo, J., "Genetic implications of two different ultramafic rocks from Hongseong area in the southwestern Gyeonggi Massif, South Korea" 8 : 539-552, 2005

      24 Kim, S. W., "Forearc serpentinite mélange from the Hongseong suture, South Korea" 20 : 852-864, 2011

      25 Oh, C. W., "First finding of eclogite facies metamorphic event in South Korea and its correlation with the Dabie–Sulu collision belt in China" 113 : 226-232, 2005

      26 Kwon, S., "Evidence for Permo-Triassic collision in Far East Asia: The Korean collisional orogen" 279 : 340-349, 2009

      27 Park, S. -I., "Continental origin of the Bibong eclogite, southwestern Gyeonggi massif, South Korea" 95 : 192-202, 2014

      28 Kim, S. W., "Characteristics of the Early Cretaceous igneous activity in the Korean Peninsula and tectonic implications" 120 : 625-646, 2012

      29 Williams, I.S., "Applications of Microanalytical Techniques to Understanding Mineralizing Processes" Society of Economic Geologists, Socorro, Reviews in Economic Geology 1-35, 1998

      30 Kim, S. W., "A Paleozoic subduction complex in Korea:SHRIMP zircon U–Pb ages and tectonic implications" 20 : 890-903, 2011

      31 Kim, S. W., "1:100,000 Tectonostratigraphic map of the Hongseong area, map 1: Solid Geology Interpretation"

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      2023 평가예정 해외DB학술지평가 신청대상 (해외등재 학술지 평가)
      2020-01-01 평가 등재학술지 유지 (해외등재 학술지 평가) KCI등재
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