Ages, Geochemistry and Metamorphism of Neoarchean Basement by Meiling Wu

By Meiling Wu

Focusing on problems with while and the way Archean crust within the craton used to be shaped, this PhD thesis publication provides significant examine results of box established metamorphic, geochemical and geochronological investigations on Meso-Neoarchean basement rocks from Shandong Province within the japanese Block of the North China Craton. in response to significant findings and new info, the writer proposes that the formation and evolution of Archean crust used to be ruled through mantle plumes, now not through plate tectonics. As one of many oldest cratonic blocks on this planet containing rocks as previous as 3.85 billion years, the formation and evolution of North China Craton remains to be debatable. consequently this booklet may be of price to an individual drawn 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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1998). 5 Ga) rocks are characterized by anticlockwise P–T paths involving isobaric cooling (IBC) (Fig. 3a; Cui et al. 1991; Chen et al. 1994; Ge et al. 1994, 2003; Li 1993; Sun et al. 1992, 1993; Zhao et al. 1998), which are similar to those P–T paths of the Neoarchean basement rocks in the Western Block (Fig. 3b), reflecting an origin related to the intrusion and underplating of mantlederived magmas (Zhao et al. 1998). 1 Introduction 25 Fig. 4 Map of the Paleoproterozoic Jiao-Liao-Ji Belt in the Eastern Block of the North China Craton (after Zhao et al.

Journal of Asian Earth Sciences, 24, 659–674. Li, S. , Zhao, G. , Han, Z. , Zhao, G. , & Hao, D. F. (2006). Are the Souther and North Liaohe Groups of North China Craton different exotic terranes? Nd isotope constraints. Gondwana Research, 9, 198–208. , & Guo, J. (2010). Ca. 5 billion year old coeval ultramaficmafic and syenitic dykes in Eastern Hebei: Implications for cratonization of the North China Craton. Precambrian Research, 180, 143–155. Li, H. , Yang, Y. , & Cao, L. L. (2013). Research progress on major basic geological problems in Shandong Province.

Journal of Asian Earth Sciences, 24, 563–575. Wan, Y. , Liu, D. , Wang, S. , Dong, C. , Yang, E. , et al. (2010). Juvenile magmatism and crustal recycling at the end of Neoarchean in western Shandong Province, North China Craton: Evidence from SHRIMP zircon dating. American Journal of Science, 310, 1503–1552. Wan, Y. , Liu, D. , Wang, S. , Yang, E. , Dong, C. , et al. (2011). 7 Ga juvenile crust formation in the North China Craton (Taishan-Xintai area, western Shandong Province): Further evidence of an understated event from zircon U–Pb dating and Hf isotope composition.

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