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Neoproterozoic granitoids on Wrangel Island
Doklady Earth Sciences, 2016Based on geochronological U–Pb studies, the age of Wrangel Island granitoids was estimated as Neoproterozoic (Cryogenian). Some granitoids contain zircons with inherited cores with an estimated age of 1010, 1170, 1200, and >2600 Ma, assuming the presence of ancient (Neoarchean–Mesoproterozoic) rocks in the Wrangel Island foundation and their ...
M. V. Luchitskaya +3 more
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Chlorites from Italian granitoid rocks
TMPM Tschermaks Mineralogische und Petrographische Mitteilungen, 1976Chemical, X-ray, optical, thermal and microprobe analyses have been carried out on six chlorites from Italian granitoid rocks formed as a result of deuteric action on biotites.
Mirella Bondi, L. Morten, P. L. Rossi
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Metamorphism of Granitoid Rocks
2002Granitoid rocks comprise granite, alkali-feldspar granite, granodiorite and tonalite. They constitute the largest portion of the continental crust. Granitoid gneisses, commonly migmatites, are in fact the dominant rock type of the continents. Because the main constituents — alkali-feldspar, plagioclase, quartz, biotite, muscovite, hornblende — are ...
Kurt Bucher, Martin Frey
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Chinese Journal of Geochemistry, 1998
Proterozoic granitoid rocks in Zhejiang Province were formed in the Shengongian period (1.8–1.9 Ga) and the Late Jinningian period (0.6–0.9 Ga), respectively. Petrogenetic problems are discussed based on chemical (major, trace elements and REEs) and Nd-Sr isotopic compositions.
Wang Yixian +3 more
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Proterozoic granitoid rocks in Zhejiang Province were formed in the Shengongian period (1.8–1.9 Ga) and the Late Jinningian period (0.6–0.9 Ga), respectively. Petrogenetic problems are discussed based on chemical (major, trace elements and REEs) and Nd-Sr isotopic compositions.
Wang Yixian +3 more
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Chinese Journal of Geochemistry, 1998
The Phanerozoic granitoid rocks include the Caledonian, Indosinian and Yenshanian granitoid rocks. The existence of Caledonian and Indosinian granites was evidenced by zircon U-Pb ages. The study of the characteristics of major, trace and rare-earth elements, isotopic composition and petrogenesis for the granitoid rocks has been made.
Wang Yixian +3 more
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The Phanerozoic granitoid rocks include the Caledonian, Indosinian and Yenshanian granitoid rocks. The existence of Caledonian and Indosinian granites was evidenced by zircon U-Pb ages. The study of the characteristics of major, trace and rare-earth elements, isotopic composition and petrogenesis for the granitoid rocks has been made.
Wang Yixian +3 more
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Granitoidal Oil-Bearing Formation
SPE Asia Pacific Conference on Integrated Modelling for Asset Management, 1998Abstract At the time being there are known some tens oil and gas fields in magmatic (Libya, United States, Venezuela, Russia, China, Egypt, India, etc.). The oil field Bachho (White Tiger) is confined to a horst-shaped granitoid massif - the basement - with a complex inner structure.
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Dike transport of granitoid magmas
Geology, 1993Thermal and fluid-dynamical analyses suggest that for viscosities and density contrasts spanning the range considered typical for many calc-alkalic granitoids, dike ascent is a viable mechanism for the transport of large volumes of granitoid melt through the continental crust.
Nick Petford +2 more
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Journal of Geochemical Exploration, 2002
Abstract Many studies have shown systematic correlations between the composition of plutons worldwide and the metal content of associated skarns. This is the first report of similar correlations between the composition of Celebi granitoid and skarns of the Celebi district in Central Anatolia, Turkey.
Kuşçu, İlkay +3 more
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Abstract Many studies have shown systematic correlations between the composition of plutons worldwide and the metal content of associated skarns. This is the first report of similar correlations between the composition of Celebi granitoid and skarns of the Celebi district in Central Anatolia, Turkey.
Kuşçu, İlkay +3 more
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Precambrian Research, 1997
Abstract The Bullfinch-Parker Dome area is an Archaean granitoid-greenstone terrain in the Yilgarn Block of Western Australia affected by a complex, protracted tectonic event. The majority of the deformation history was progressive rather than multiple discrete events.
Erik J.M. Bloem +3 more
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Abstract The Bullfinch-Parker Dome area is an Archaean granitoid-greenstone terrain in the Yilgarn Block of Western Australia affected by a complex, protracted tectonic event. The majority of the deformation history was progressive rather than multiple discrete events.
Erik J.M. Bloem +3 more
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