A massif-type (~1.86 Ga) anorthosite complex in the Yeongnam Massif, Korea: late-orogenic emplacement associated with the mantle delamination in the North China Craton
作者： Yuyoung Lee , Moonsup Cho , Wonseok Cheong , Keewook Yi
DOI: 10.1111/TER.12115
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摘要: To unravel the petrogenesis of a massif-type anorthosite in terms crust-mantle geodynamics, we dated zircons separated from six samples Sancheong-Hadong (SH) complex, Korea, using sensitive high-resolution ion microprobe. The weighted mean 207Pb/206Pb age two anorthosites is 1862 ± 2 Ma, whereas ages hornblende gabbro and granitic gneiss are 1873 ± 4 Ma 1875 ± 5 Ma respectively. Zircon rims mafic granulite migmatitic yielded 1860 ± 5 Ma 1858 ± 4 Ma, respectively, implying that facies metamorphism anatexis associated with emplacement. Our results, together available Re–Os data, compatible ~1.9–1.86 Ga collisional orogeny prevalent North China Craton Korean Peninsula, suggest orogenesis was accompanied by mantle delamination beneath craton. It thus likely SH anorthositic rocks product late-orogenic magmatism during post-collisional extension-dominated phase orogeny.
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sci-hub.se 参考文章(53)
J. M. McLelland, B. W. Selleck, M. A. Hamilton, M. E. Bickford, LATE- TO POST-TECTONIC SETTING OF SOME MAJOR PROTEROZOIC ANORTHOSITE – MANGERITE – CHARNOCKITE – GRANITE (AMCG) SUITES Canadian Mineralogist. ,vol. 48, pp. 729- 750 ,(2010) , 10.3749/CANMIN.48.4.729
R. F. Emslie, Proterozoic Anorthosite Massifs Springer, Dordrecht. pp. 39- 60 ,(1985) , 10.1007/978-94-009-5450-2_4
Park， Kye-Hun, ho-sun lee, Yongsun Song, Namhoon Kim, SHRIMP U-Pb Zircon Ages of the Granite Gneisses from the Pyeonghae Area of the northeastern Yeongnam Massif (Sobaeksan Massif) The Journal of the Petrological Society of Korea. ,vol. 18, pp. 31- 47 ,(2009)
Jian Zhang, Guochun Zhao, Sanzhong Li, Min Sun, Lung S. Chan, Wenlue Shen, Shuwen Liu, Structural pattern of the Wutai Complex and its constraints on the tectonic framework of the Trans-North China Orogen Precambrian Research. ,vol. 222, pp. 212- 229 ,(2012) , 10.1016/J.PRECAMRES.2011.08.009
S ZHANG, S LIU, Y ZHAO, J YANG, B SONG, X LIU, The 1.75-1.68Ga anorthosite-mangerite-alkali granitoid-rapakivi granite suite from the northern North China Craton: Magmatism related to a Paleoproterozoic orogen Precambrian Research. ,vol. 155, pp. 287- 312 ,(2007) , 10.1016/J.PRECAMRES.2007.02.008
Guochun Zhao, Peter A. Cawood, Sanzhong Li, Simon A. Wilde, Min Sun, Jian Zhang, Yanhong He, Changqing Yin, Amalgamation of the North China Craton: Key issues and discussion Precambrian Research. ,vol. 222, pp. 55- 76 ,(2012) , 10.1016/J.PRECAMRES.2012.09.016
Nadine Wittig, Joel A. Baker, Hilary Downes, Dating the mantle roots of young continental crust Geology. ,vol. 34, pp. 237- 240 ,(2006) , 10.1130/G22135.1
Yong Wan Kwon, Chang Whan Oh, Hyung Shik Kim, Granulite-facies metamorphism in the Punggi area, northeastern Yeongnam Massif, Korea and its tectonic implications for east Asia Precambrian Research. ,vol. 122, pp. 253- 273 ,(2003) , 10.1016/S0301-9268(02)00214-0
A. M. Lundmark, F. Corfu, Late-orogenic Sveconorwegian massif anorthosite in the Jotun Nappe Complex, SW Norway, and causes of repeated AMCG magmatism along the Baltoscandian margin Contributions to Mineralogy and Petrology. ,vol. 155, pp. 147- 163 ,(2008) , 10.1007/S00410-007-0233-5
Namhoon Kim, Chang-Sik Cheong, Kye-Hun Park, Jeongmin Kim, Yong-Sun Song, Crustal evolution of northeastern Yeongnam Massif, Korea, revealed by SHRIMP U-Pb zircon geochronology and geochemistry Gondwana Research. ,vol. 21, pp. 865- 875 ,(2012) , 10.1016/J.GR.2011.10.003