Origins of two types of Archean potassic granite constrained by Mg isotopes and statistical geochemistry: Implications for continental crustal evolution
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DOI: 10.1016/j.lithos.2020.105570
Abstract: Abstract The chemical composition of the upper continental crust (UCC) dramatically changed from predominantly sodic to more potassic during the late Archean (3000–2500 Ma), although how this change occurred remains poorly constrained. The origins of Neoarchean… read more here.
Keywords: geochemistry; k2o na2o; type potassic; potassic granites ... See more keywords