Ages, Geochemistry and Metamorphism of Neoarchean Basement by Meiling Wu

By Meiling Wu

Focusing on problems with whilst and the way Archean crust within the craton was once shaped, this PhD thesis publication offers significant learn results of box established metamorphic, geochemical and geochronological investigations on Meso-Neoarchean basement rocks from Shandong Province within the jap Block of the North China Craton. in line with significant findings and new info, the writer proposes that the formation and evolution of Archean crust was once ruled via mantle plumes, now not by means of plate tectonics. As one of many oldest cratonic blocks on this planet containing rocks as outdated as 3.85 billion years, the formation and evolution of North China Craton continues to be debatable. hence this e-book could be of worth to an individual attracted to the evolution of cratonic blocks and Precambrian geology.

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Additional resources for Ages, Geochemistry and Metamorphism of Neoarchean Basement in Shandong Province: Implications for the Evolution of the North China Craton

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C Trans-North China Orogen: 1 Hengshan; 2 Wutai; 3 Fuping; 4 Lüliang domain (Zhao et al. 2000a); 5 Zhongtiao; 6 Huaian; 7 High-pressure granulite. References for P–T paths of the Eastern Block, Western Block and TransNorth China Orogen are given in Zhao et al. (1998, 1999a, b, 2000a), respectively Wilde et al. 2008). 9 Ga zircons have also been reported from felsic granulite xenoliths in the Mesozoic volcanic rocks in the Xinyang area in the southwestern part of the Eastern Block (Zheng et al. 2004), suggesting that the pre-Neoarchean crust is not only restricted to the northern part of the Eastern Block, but also exists in the southern part of this block (Zheng et al.

Growth of early continental crust by partial melting of eclogite. Nature, 425, 605–609. , & Powell, R. (1986). Deep crustal metamorphism during continental extension: Modern and ancient examples. Earth and Planetary Science Letters, 79, 151–158. , & Li, J. H. (2006). Extreme crustal metamorphism during Columbia supercontinent assembly: Evidence from North China Craton. Gondwana Research, 10, 256–266. , Li, J. , & Liu, S. J. (2007a). Discovery of sapphirine-bearing Mg-Al granulites in the North China Craton: Implications for Paleoproterozoic ultrahigh-temperature metamorphism.

Yang, Y. H. (2008). Zircon U-Pb and Hf isotopic constraints on the Early Archean crustal evolution in Anshan of the North China Craton. Precambrian Research, 167, 339–362. Xia, X. , Zhao, G. , & Luo, Y. (2006a). LA-ICP-MS U–Pb geochronology of detrital zircons from the Jining Complex, North China Craton and its tectonic significance. Precambrian Research, 144, 199–212. Xia, X. , Zhao, G. , Wu, F. , Zhang, J. , et al. (2006b). U–Pb and Hf isotopic study of detrital zircons from the Wulashan khondalites: Constraints on the evolution of the Ordos Terrane, Western Block of the North China Craton.

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