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Precambrian Research(6)
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Mostrando 10 resultados de: 35
Ca. 2.9Ga granitoid magmatism in eastern Shandong, North China Craton: Zircon dating, Hf-in-zircon isotopic analysis and whole-rock geochemistry
ArticleAbstract: Eastern Shandong is one of the important early Precambrian areas in the North China Craton, where exPalabras claves:Eastern Shandong, Hf isotope, Juvenile crustal addition, Mesoarchean, TTG, zircon datingAutores:Alfred Kron̈er, Dong C., Liu D.Y., Liu S., Ma M., Wang S., Xie H., Xie S., Yusheng W., Zhou H.Fuentes:scopusCambrian–Ordovician magmatism of the Ikh-Mongol Arc System exemplified by the Khantaishir Magmatic Complex (Lake Zone, south–central Mongolia)
ArticleAbstract: The Khantaishir Magmatic Complex (KMC) (south–central Mongolia) exposes a section of a magmatic systPalabras claves:Ikh-Mongol Arc System, Lake Zone, Subduction, Whole-rock geochemistry, zircon datingAutores:Alfred Kron̈er, Altanbaatar B., Buriánek D., Erban V., Ganchuluun T., Hanžl P., Janoušek V., Jiang Y.D., Košler J., Lexa O., Schulmann K., Soejono I.Fuentes:scopusDating of zircon from high-grade rocks: Which is the most reliable method?
ArticleAbstract: Magmatic zircon in high-grade metamorphic rocks is often characterized by complex textures as revealPalabras claves:High-grade rock, LA-ICP-MS, SHRIMP, zircon datingAutores:Alfred Kron̈er, Liu D.Y., Liu X.M., Xiaoming Liu, Yusheng W.Fuentes:scopusGeochemistry and SHRIMP U-Pb Zircon Dating of Mafic Rocks North of Zunhua City, Eastern Hebei, North China Craton: Paleoproterozoic Gabbro rather than Neoarchean Ophiolite
ArticleAbstract: Abundant mafic-ultramafic blocks and dikes occur in the area north of Zunhua City, eastern Hebei ProPalabras claves:metagabbro, North China craton, Ophiolite, shrimp, zircon dating, ZunhuaAutores:Alfred Kron̈er, Bai W., Dong C., Liu D.Y., Liu S., Wenqian Bai, Xie H., Yusheng W.Fuentes:scopusEvidence from zircon dating for existence of approximately 2.1 Ga old crystalline basement in southern Bohemia, Czech Republic
ArticleAbstract: Zircon ages are reported for three Moldanubian amphibolite grade orthogneisses from the southern BohPalabras claves:Bohemian Massif, Czech Republic, Orthogneisses, Sphene dating, zircon datingAutores:Alfred Kron̈er, Fiala J., Todt W., Wendt J.I.Fuentes:scopusEvolution of a Permian intraoceanic arc-trench system in the Solonker suture zone, Central Asian Orogenic Belt, China and Mongolia
ArticleAbstract: The identification of a fossil arc-trench system from the ophiolite-decorated Solonker suture zone iPalabras claves:CAOB, Forearc mélange, Ophiolite, Plate convergence, Proto-arc crust, zircon datingAutores:Alfred Kron̈er, Jian P., Liu D.Y., Miao L., Shi Y., Tomurhuu D., Wei Zhang, Windley B.F., Zhang F., Zhang L., Zhang W.Fuentes:scopusEvolution of the Mayo Kebbi region as revealed by zircon dating: An early (ca. 740 Ma) Pan-African magmatic arc in southwestern Chad
ArticleAbstract: The Mayo Kebbi region in SW Chad is part of the NNE-SSW trending Neoproterozoic Central African FoldPalabras claves:Arc accretion, Chad, Granitoids, Pan-African, Tectonic collage, zircon datingAutores:Alfred Kron̈er, Doumnang J.C., Penaye J., Toteu S.F., Van Schmus W.R., William R. Van SchmusFuentes:scopusEarly Neoarchean (~2.7 Ga) tectono-thermal events in the North China Craton: A synthesis
ArticleAbstract: The North China Craton (NCC) is characterized by major ~2.5 Ga tectono-thermal events and is thus diPalabras claves:Hf-in-zircon isotopes, Neoarchean, North China craton, Tectono-thermal event, TTG, zircon datingAutores:Alfred Kron̈er, Dong C., Du L., Liu D.Y., Ma M., Xie H., Xie S., Yang C., Yusheng W.Fuentes:scopusTwo orogenic events separated by 2.6 Ga mafic dykes in the Central Zone, Limpopo Belt, southern Africa
ArticleAbstract: The Limpopo Belt of southern Africa is a typical early Precambrian orogen that experienced two high-Palabras claves:Limpopo Belt, Mafic dyke, Orogenic event, shrimp, zircon datingAutores:Alfred Kron̈er, Brandl G., Xie H., Yusheng W.Fuentes:scopusU-Pb zircon geochronology and Hf-Nd isotopic systematics of Wadi Beitan granitoid gneisses, South Eastern Desert, Egypt
ArticleAbstract: Migmatitic granitoid gneisses are widespread in the southern Eastern Desert of Egypt, but their formPalabras claves:Arabian-Nubian Shield, arc magmatism, Lu-Hf and Sm-Nd isotopes, Neoproterozoic, zircon datingAutores:Abu El Ela F.F., Alfred Kron̈er, Ali K.A., Gahlan H.A., Hegner E., Li S.Q., Wong J.Fuentes:scopus