Mostrando 7 resultados de: 7
Subtipo de publicación
Article(7)
Publisher
Gondwana Research(2)
Journal of Geology(2)
Contributions to Mineralogy and Petrology(1)
Earth and Planetary Science Letters(1)
Geological Magazine(1)
Área temáticas
Geología, hidrología, meteorología(5)
Petrología(3)
Ciencias de la Tierra de América del Norte(2)
Ciencias de la tierra(2)
Paleontología(2)
Origen
scopus(7)
Age and isotope geochemistry of the Archaean Pongola and Usushwana suites in Swaziland, southern Africa: a case for crustal contamination of mantle-derived magma
ArticleAbstract: The igneous rocks of the Pongola Supergroup (PS) and Usushwana Intrusive Suite (UIS) represent a casPalabras claves:Autores:Alfred Kron̈er, Hegner E., Hofmann A.W.Fuentes:scopusGeochemistry, zircon ages and whole-rock Nd isotopic systematics for Palaeoproterozoic A-type granitoids in the northern part of the Delhi belt, Rajasthan, NW India: Implications for late Palaeoproterozoic crustal evolution of the Aravalli craton
ArticleAbstract: Determination of zircon ages as well as geochemical and Sm-Nd isotope systematics of granitoids in tPalabras claves:A-type granites, Aravalli craton, Nd isotopes, Palaeoproterozoic, Zircon chronometryAutores:Alfred Kron̈er, Chaudhri N., Hofmann A.W., Kaur P., Raczek I.Fuentes:scopusPetrology of mafic lavas within the Onega plateau, central Karelia: evidence for 2.0 Ga plume-related continental crustal growth in the Baltic Shield
ArticleAbstract: The Onega plateau consistitues part of a vast continental flood basalt province in the SE Baltic ShiPalabras claves:Autores:Alfred Kron̈er, Arndt N.T., Garbe-Schönberg D., Haase K.M., Hofmann A.W., Kulikov V.S., Kulikova V.V., Nemchin A.A., Puchtel I.S.Fuentes:scopusIsotopic mapping of age provinces in Precambrian high-grade terrains: Sri Lanka
ArticleAbstract: Nd model ages of amphibolite- and granulite-grade rocks in Sri Lanka form a simple regional patternPalabras claves:Autores:Alfred Kron̈er, Hofmann A.W., Liew T., Milisenda C.Fuentes:scopusU-Pb isotopic systematics of zircons from prograde and retrograde transition zones in high-grade orthogneisses, Sri Lanka
ArticleAbstract: We present U-Pb zircon isotopic data from locally restricted prograde (arrested in situ charnockitizPalabras claves:Autores:Alfred Kron̈er, Baur N., Hofmann A.W., Liew T., Todt W., Williams I.Fuentes:scopusZircon ages of late Palaeoproterozoic (ca. 1.72-1.70Ga) extension-related granitoids in NE Rajasthan, India: Regional and tectonic significance
ArticleAbstract: The Khetri region forms a late Palaeoproterozoic igneous-metamorphic complex in NE Rajasthan, India.Palabras claves:A-type granites, Aravalli orogen, Columbia supercontinent, Late Palaeoproterozoic, Zircon geochronologyAutores:Alfred Kron̈er, Chaudhri N., Hofmann A.W., Kaur P., Okrusch M., Raczek I.Fuentes:scopusRecord of 1.82 Ga Andean-type continental arc magmatism in NE Rajasthan, India: Insights from zircon and Sm-Nd ages, combined with Nd-Sr isotope geochemistry
ArticleAbstract: We document a Palaeoproterozoic Andean-type continental arc granitoid emplacement event in the northPalabras claves:Continental arc magmatism, geochronology, Nd-Sr isotopes, NE Rajasthan, Palaeoproterozoic granitoidsAutores:Alfred Kron̈er, Chaudhri N., Hofmann A.W., Kaur P., Raczek I.Fuentes:scopus