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 e-book 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 keeping with significant findings and new information, the writer proposes that the formation and evolution of Archean crust was once ruled via mantle plumes, no longer through plate tectonics. As one of many oldest cratonic blocks on the earth containing rocks as previous as 3.85 billion years, the formation and evolution of North China Craton continues to be arguable. as a result this booklet can be of worth 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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4 Metamorphic Study Metamorphic study was based on a combination study of petrography, mineral chemistry, and pseudosection modeling. In this study, mafic granulites from the Yishui Terrane were selected for metamorphic study, including petrographic examination, EPMA mineral chemistry, pseudosection modeling and P–T path reconstruction. D. study, more than 40 mafic granulites samples from the Yishui Terrane were studied under microscope to investigate microstructural and reaction relationships between minerals.

Neoarchean siliceous high-Mg basalt (SHMB) from the Taishan granite–greenstone terrane, Eastern North China Craton: Petrogenesis and tectonic implications. Precambrian Research, 228, 233–249. , Wilde, S. , & Peng, B. (2013b). Late Neoarchean potassic high Ba–Sr granites in the Taishan granite–greenstone terrane: Petrogenesis and implications for continental crustal evolution. Chemical Geology, 344, 23–41. , & Worley, B. (1998). Calculating phase diagrams involving solid solutions via non-linear equations, with examples using THERMOCALC.

B. (2001). Calculation of partial melting equilibrium in the system Na2O-CaO-K2O–FeO–MgO–Al2O3–SiO2–H2O (NCKFMASH). Journal of Metamorphic Geology, 19, 139–153. White, R. , & Clarke, G. L. (2002). The interpretation of reaction textures in Fe-rich metapelitic granulites of the Musgrave Block, central Australia: Constraints from mineral equilibria calculations in the system K2O–FeO–MgO–Al2O3–SiO2–H2O–TiO2–Fe2O3. Journal of Metamorphic Geology, 2, 41–55. White, R. , & Clarke, G. L. (2003). Prograde metamorphic assemblage evolution during partial melting of metasedimentary rocks at low pressures: Migmatites from Mt Stafford, Central Australia.

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