WebMartin J. Van Kranendonk *, R. Hugh Smithies, William L. Griffin, David L. Huston, Arthur H. Hickman, David C. Champion, Carl R. Anhaeusser, Franco Pirajno * Corresponding author for this work. ARC Centre of Excellence for Core to Crust Fluid Systems (incorporation ARC National Key Centre for Geochemical evolution and Metallogeny of … WebRH Smithies, DC Champion. Journal of Petrology 41 (12), 1653-1671. , 2000. 540. 2000. secular tectonic evolution of Archean continental crust: interplay between horizontal and …
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Web15 sep. 2024 · 1. Introduction. Much of Earth's oldest continental crust consists of deformed and metamorphosed felsic magmatic rocks of the tonalite–trondhjemite–granodiorite (TTG) series, sodic granitoids with high SiO2 (∼65–75 wt%) and Al 2 O 3 (∼15 wt%) contents, and high La/Yb, Sr/Y and Na 2 O/K 2 O ratios ( Smithies et al., 2009; Moyen, 2011). grady white gulfstream 232 for sale canada
Pb isotope insight into the formation of the Earth
Web27 feb. 2024 · This protracted, multistage process for the production and stabilization of the first continents—coupled with the high geothermal gradients—is incompatible with … WebMartin J. Van Kranendonk, R. Hugh Smithies, Arthur H. Hickman, David C. Champion. Pages 307-337 Download PDF. Chapter preview. select article Chapter 4.2 The Oldest Well-Preserved Felsic Volcanic Rocks on Earth: Geochemical Clues to the Early Evolution of the Pilbara Supergroup and Implications for the Growth of a Paleoarchean Protocontinent. WebAbstract. The geodynamic environment in which Earth's first continents formed and were stabilized remains controversial. Most exposed continental crust that can be dated back to the Archaean eon (4 billion to 2.5 billion years ago) comprises tonalite-trondhjemite-granodiorite rocks (TTGs) that were formed through partial melting of hydrated low ... china airlines name correction