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Origin of an A-type granite; experimental constraints
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This article is published in American Mineralogist.The article was published on 1986-04-01 and is currently open access. It has received 659 citations till now. The article focuses on the topics: Syenogranite.read more
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A-type granites: geochemical characteristics, discrimination and petrogenesis
TL;DR: A-type granites as mentioned in this paper were found to have high SiO2, Na2O+K2O, Fe/Mg, Ga/Al, Zr, Nb, Ga, Y and Ce, and low CaO and Sr.
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The A-type granitoids: A review of their occurrence and chemical characteristics and speculations on their petrogenesis
TL;DR: The A-type granitoid suites vary in composition from quartz syenites to peralkaline granites and their respective volcanic equivalents as mentioned in this paper, and the A-types are characterized by their relatively high alkali contents and low CaO contents.
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A-type granites in northeastern China: age and geochemical constraints on their petrogenesis
TL;DR: A-type granites are widely distributed in northeastern China (NE China). They were emplaced during three major episodes (the Permian, late Triassic to early Jurassic, and early Cretaceous) and evolved in different tectonic regimes.
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A-type granites and related rocks: Evolution of a concept, problems and prospects
TL;DR: A-type granites have long been recognized as a distinct group of granites, the term A-type was coined first less than thirty years ago as discussed by the authors, and they are fairly common at shallower depths, especially at the subvolcanic level where they form ring complexes rooting caldera volcanoes.
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Characterization and Origin of Aluminous A-type Granites from the Lachlan Fold Belt, Southeastern Australia
TL;DR: The metaluminous to weakly peraluminous A-type granites of the Lachlan Fold Belt are a distinctive group of igneous rocks, on the basis of chemical and mineralogical criteria as discussed by the authors.