Mostrando 10 resultados de: 22
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Gondwana Research(11)
Precambrian Research(6)
Earth and Planetary Science Letters(1)
Geochemistry, Geophysics, Geosystems(1)
Lithos(1)
Chronology of the oldest supracrustal sequences in the Palaeoarchaean Barberton Greenstone Belt, South Africa and Swaziland
ArticleAbstract: Zircon age data for felsic metavolcanic rocks of the Sandspruit and Theespruit formations, the two oPalabras claves:Felsic volcanism, Greenstone belt, Palaeoarchaean, South Africa, Zircon geochronologyAutores:Alfred Kron̈er, Anhaeusser C.R., Geng H.Y., Hegner E., Hoffmann J.E., Liu D.Y., Wong J., Xie H., Yang J.Fuentes:scopusAncient xenocrystic zircon in young volcanic rocks of the southern Lesser Antilles island arc
ArticleAbstract: The Lesser Antilles arc is one of the best global examples in which to examine the effects of the inPalabras claves:230 Th disequilibrium, Carriacou-Petite Martinique, Crustal assimilation, Grenada, Lesser Antilles, Zircon xenocrystAutores:Alfred Kron̈er, Arculus R., Buhre S., Echeverría C.M., García-Gasco A., Geng H., Jeffries T., Lázaro C., Mertz-Kraus R., Williams I.S., Wong J., Xie H., Yamirka Rojas-AgramonteFuentes:scopusDetrital and igneous zircon ages for supracrustal rocks of the Kyrgyz Tianshan and palaeogeographic implications
ArticleAbstract: We report detrital zircon ages for Precambrian and early Palaeozoic metasediments from the TianshanPalabras claves:Detrital zircon age, Kyrgyzstan, Palaeo-Asian Ocean, Tarim craton, TianshanAutores:Alexeiev D.V., Alfred Kron̈er, Geng H.Y., Jeffries T., Khudoley A.K., Kiselev V.V., Mikolaichuk A.V., Seltmann R., Semiletkin S.A., Shu L., Wong J., Yamirka Rojas-Agramonte, Yang J.H.Fuentes:scopusCorrigendum to “Chronology of the oldest supracrustal sequences in the Palaeoarchaean Barberton Greenstone Belt, South Africa and Swaziland” [Precambrian Research 279 (2016) 123–143](S0301926816300663)(10.1016/j.precamres.2016.04.007)
OtherAbstract: The authors regret that the location of sample BA170 was not shown in Table 1 and that the Hf-in-zirPalabras claves:Autores:Alfred Kron̈er, Anhaeusser C.R., Geng H.Y., Hegner E., Hoffmann J.E., Liu D.Y., Wong J., Xie H., Yang J.Fuentes:scopusAge, Nd-Hf isotopes, and geochemistry of the Vijayan Complex of eastern and southern Sri Lanka: A Grenville-age magmatic arc of unknown derivation
ArticleAbstract: The ca. 1.0-1.1 Ga Vijayan Complex (VC) of eastern and southeastern Sri Lanka is one of three high-gPalabras claves:Grenville, Nd-Hf isotopes, Sri Lanka, Vijayan, zircon ageAutores:Alfred Kron̈er, Barth M., Geng H.Y., Hegner E., Kehelpannala K.V.W., Wong J., Yamirka Rojas-Agramonte, Zack T.Fuentes:scopusGeneration of early Archaean felsic greenstone volcanic rocks through crustal melting in the Kaapvaal, craton, southern Africa
ArticleAbstract: High-potassium felsic volcanic rocks interlayered with basalt and komatiite in early Archaean greensPalabras claves:Barberton greenstone belt, Greenstone evolution, Nd-Hf isotopes, zircon ageAutores:Alfred Kron̈er, Hegner E., Hoffmann J.E., Liu D.Y., Münker C., Wong J., Wu F.Y., Xie H., Yusheng W.Fuentes:scopusEvolution of Cambrian and Early Ordovician arcs in the Kyrgyz North Tianshan: Insights from U-Pb zircon ages and geochemical data
ArticleAbstract: Geochronological, geochemical, and structural studies of magmatic and metamorphic complexes within tPalabras claves:Accretion, ARC, Cambro-Ordovician, CAOB, Ophiolite, TianshanAutores:Alexeiev D.V., Alfred Kron̈er, Degtyarev K.E., Kiselev V.V., Kovach V.P., Mikolaichuk A.V., Tretyakov A.A., Wong J., Yamirka Rojas-AgramonteFuentes:scopusNo excessive crustal growth in the Central Asian Orogenic Belt: Further evidence from field relationships and isotopic data
ReviewAbstract: We provide new field observations and isotopic data for key areas of the Central Asian Orogenic BeltPalabras claves:CAOB, Crustal growth, Juvenile crust, Nn-Hf-Re-Os isotopes, Recycled crustAutores:Alexeiev D.V., Alfred Kron̈er, Degtyarev K.E., Kovach V.P., Kozakov I.K., Wang K.L., Wong J.Fuentes:scopusHigh-temperature metamorphism and crustal melting at ca. 3.2 Ga in the eastern Kaapvaal craton, southern Africa
ArticleAbstract: The question of whether high-grade metamorphism and crustal melting in the early Archaean were assocPalabras claves:Grey gneiss, Hf-Nd isotopes, Kaapvaal Craton, Mesoarchaean, P-T reconstruction, Swaziland, zircon ageAutores:Alfred Kron̈er, Hegner E., Hoffmann J.E., Hofmann A., Kasper U., Liu D.Y., Liu X.M., Nagel T.J., Wong J., Xie H.Fuentes:scopusPalaeoproterozoic ancestry of Pan-African high-grade granitoids in southernmost India: Implications for Gondwana reconstructions
ReviewAbstract: SHRIMP dating of magmatic zircons from granitoid gneisses and charnockites of the Trivandrum and NagPalabras claves:Charnockite, Leptynite, Nd-Hf isotopes, Palaeoproterozoic, Zircon geochronologyAutores:Alfred Kron̈er, Geng H.Y., Hegner E., Liu D.Y., Nanda-Kumar V., Santosh M., Shaji E., Shang C.K., Sun M., Wong J., Xie H., Yusheng W.Fuentes:scopus