Mostrando 10 resultados de: 28
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Gondwana Research(7)
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Geología, hidrología, meteorología(18)
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A Late Cretaceous Adakitic intrusion from Northern Haiti: additional evidence for slab melting and implications for migration of ridge-trench-trench triple junction during the Cretaceous in the Greater Antilles
ArticleAbstract: We present a new U-Pb zircon age and geochemical data from an intermediate calc-alkaline pluton withPalabras claves:Adakite, geochronology, HAITÍ, Hispaniola, ridge subductionAutores:de Lepinay, B M., García-Gasco A., Hu H.Y., Iturralde-Vinent M., Lewis J., Yamirka Rojas-AgramonteFuentes:scopusA geotraverse across two paleo-subduction zones in Tien Shan, Tajikistan
ArticleAbstract: We present first LA-ICP-MS U–Pb zircon ages as well as geochemical and Sr–Nd–Pb isotope data for 14Palabras claves:Carboniferous subduction-collision, Sr–Nd–Pb isotopes, Tajikistan, Tectonic model, Tien Shan (Tianshan), Zircon agesAutores:Fidaev D., Jeffries T., Konopelko D., Mamadjanov Y., Niyozov A., Romer R.L., Seltmann R., Yamirka Rojas-AgramonteFuentes: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:scopusEdiacaran, Early Ordovician and early Silurian arcs in the South Tianshan orogen of Kyrgyzstan
ArticleAbstract: The oldest magmatic rocks from the South Tianshan orogen of Kyrgyzstan (STS) are important for bettePalabras claves:CAOB, Magmatic arc, Neoproterozoic, Ordovician, Silurian, South TianshanAutores:Alexeiev D.V., Biske Y.S., Kovach V.P., Kröner A., Tretyakov A.A., 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:scopusDetrital and xenocrystic zircon ages from Neoproterozoic to Palaeozoic arc terranes of Mongolia: Significance for the origin of crustal fragments in the Central Asian Orogenic Belt
ArticleAbstract: The Central Asian Orogenic Belt contains many Precambrian crustal fragments whose origin is unknown,Palabras claves:Central Asian Orogenic Belt, Detrital age, Microcontinent, Mongolia, Probability plot, Tarim, zirconAutores:Alfred Kron̈er, Demoux A., Donskaya T.V., Liu D.Y., Sun M., Wang W., Xia X., Yamirka Rojas-AgramonteFuentes:scopusDetrital zircon geochronology of Jurassic sandstones of western Cuba (San Cayetano Formation): Implications for the Jurassic paleogeography of the NW Proto-Caribbean
ArticleAbstract: Clastic sediments of the early (?) to late Jurassic (Oxfordian) San Cayetano Formation of western CuPalabras claves:Autores:Alfred Kron̈er, Garcia-Delgado D.E., García-Gasco A., Liu D.Y., Pindell J., Wang Y., Yamirka Rojas-AgramonteFuentes:scopusDetrital-zircon geochronology and provenance of the El Oro Metamorphic Complex, Ecuador: Geodynamic implications for the evolution of the western Gondwana margin
ArticleAbstract: The El Oro Metamorphic Complex (EOMC) in SW Ecuador has been the subject of debate for several decadPalabras claves:Cordillera Real, Detrital zircon provenance analysis, ECUADOR, El Oro Metamorphic Complex, Gondwana, North-central AndesAutores:Chew D.M., Mertz-Kraus R., Pinto A.J., Suhr N., Theofilos Toulkeridis, Villagómez-Díaz D., Yamirka Rojas-AgramonteFuentes:googlescopusGeochemistry and early Palaeogene SHRIMP zircon ages for island arc granitoids of the Sierra Maestra, southeastern Cuba
ArticleAbstract: The Palaeogene volcanic arc successions of the Sierra Maestra, southeastern Cuba, were intruded by cPalabras claves:Calc-alkaline granitoids, Cuba, Sierra Maestra, Subduction magmatism, Zircon geochronologyAutores:Alfred Kron̈er, Garcia-Delgado D.E., Handler R., Liu D.Y., Neubauer F., Yamirka Rojas-Agramonte, Yusheng W.Fuentes:scopusHydrothermal origin and age of jadeitites from Sierra del Convento mélange (Eastern Cuba)
ArticleAbstract: Jadeitite (jadeite jade) from Sierra del Convento (eastern Cuba) occurs in a subduction-related serpPalabras claves:Caribbean, eastern Cuba, High-pressure, High-temperature, Hydrothermal crystallization, Jadeitite, SubductionAutores:Alfred Kron̈er, Blanco-Quintero I.F., Cárdenas-Párraga J., García-Gasco A., Harlow G.E., Yamirka Rojas-AgramonteFuentes:scopus