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peraluminous

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peraluminous
peraluminous, a. Petrol. (pɜːrəˈl(j)uːmɪnəs) [f. per-1 4 + aluminous a.] Of a rock: (see quots. 19741 (and 1931), 1972).1927, 1931 [see peralkaline a.]. 1964 Mineral. Abstr. XVI. 488/2 A peraluminous granite stock and related pegmatites..have been emplaced in pelitic and quartzo⁓feldspathic schists.... Oxford English Dictionary
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Peraluminous rock
Examples of peraluminous minerals include biotite, muscovite, cordierite, andalusite and garnet. Peraluminous corresponds to the aluminum saturation index values greater than 1. wikipedia.org
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peralkaline
peralkaline, a. Petrol. (pɜːrˈælkəlaɪn) [f. per-1 4 + alkaline a.] Of a rock: containing a high proportion of soda and potash; now spec. (see quot. 1931).1913 A. N. Winchell in Jrnl. Geol. XXI. 210 Along this co-ordinate igneous rocks are classified as normal or alkali-calcic.., alkaline, and peralk... Oxford English Dictionary
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Peralkaline rock
See also Agpaitic rock Metaluminous rock Peraluminous rock References Igneous rocks Volcanology Igneous petrology wikipedia.org
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Augelite
It occurs as a product of metamorphism of phosphate bearing peraluminous sediments and in high-temperature hydrothermal ore deposits. wikipedia.org
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Monzogranite
Monzogranites are characteristically felsic (SiO2 > 73%, and FeO + MgO + TiO2 < 2.4), weakly peraluminous (Al2O3/ (CaO + Na2O + K2O) = 0.98–1.11), and However, high CaO/Na2O ratios can also result from mixing of strongly peraluminous crustal melts with basaltic magmas." (Aguado, 2005). wikipedia.org
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Syenogranite
Mafti, Mohammed Rashad H. (2001) "Age, Geochemistry and Origin of the Peraluminous A-Type Granitoids of the Ablah-Shuwas Pluton, Ablah Graben Arabian Shield wikipedia.org
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Idaho Batholith
The Atlanta peraluminous suite (83-67 Ma) makes up the majority of the Atlanta lobe that stretches farther south than the early metaluminous suite and The Bitterroot lobe is mostly made from the Bitterroot peraluminous suite (66-53 Ma) consisting of the central portion of the Bitterroot lobe. wikipedia.org
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Metaluminous rock
This contrasts with peraluminous rocks in which the aluminium oxide concentration is higher than the combination, and peralkaline rocks where the alkalis wikipedia.org
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Kari-Kari (caldera)
Kari-Kari belongs to a more peraluminous domain of the ignimbrite provinces of the Central Andes, which also includes the Los Frailes ignimbrite field. Differentiation along mafic and peraluminous phases formed the eventual magma. The magma was predominantly formed from crustal phases. wikipedia.org
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Abra Granada
Other peraluminous rocks were erupted 10 mya. The complex is the likely source of the Granada Ignimbrite. wikipedia.org
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Cordón de Lila
The compositions of the plutonic rocks are granodiorite and monzogranite that are either metaluminous or marginally peraluminous. wikipedia.org
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Cibola gneiss
The pluton may include three compositionally distinct phases: a fine-grained, peraluminous, two-mica leucogranite with a radiometric age of 1632±45 Ma, wikipedia.org
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I-type granite
Primary muscovite can occur in weakly peraluminous fractionated I-type granites. I-type granites are typically metaluminous to weakly peraluminous. wikipedia.org
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Salma caldera
rhyolitic volcanic rocks, a peralkaline ring intrusion that rose along a fracture formed during caldera collapse, and a younger resurgent metaluminous and peraluminous wikipedia.org
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