Mostrando 10 resultados de: 13
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Precambrian Research(5)
Journal of the Geological Society(2)
South African Journal of Geology(2)
American Journal of Science(1)
Geology(1)
Characterization, provenance, and tectonic setting of Fig Tree greywackes from the Archaean Barberton Greenstone Belt, South Africa
ArticleAbstract: In this study, mineralogical and geochemical data, as well as Sr and Nd isotopic compositions of earPalabras claves:Archaean, Barberton greenstone belt, Greywackes, Provenance, Tectonic settingAutores:Alfred Kron̈er, Clauer N., Reimer T., Theofilos Toulkeridis, Todt W.Fuentes:googlescopusChemical variations in clay minerals of the Archaean Barberton Greenstone Belt (South Africa)
ArticleAbstract: Four rock profiles of shales, carbonates and greywacke-type sediments were sampled from the mafic coPalabras claves:Autores:Alfred Kron̈er, Clauer N., Theofilos ToulkeridisFuentes:googlescopusA mineralogical, chemical and isotopic investigation of shales from the barberton greenstone belt, South Africa, to constrain source materials and post-deposition evolution
ArticleAbstract: Major, trace and rare-earth elements were determined, together with their Rb-Sr, Sm-Nd and Pb-Pb isoPalabras claves:Autores:Alfred Kron̈er, Clauer N., Theofilos Toulkeridis, Todt W.Fuentes:googlescopusDeformed A-type granites in northern Malawi, east-central Africa: Pre- or syntectonic?
ArticleAbstract: Metamorphosed and deformed A-type granites ranging in age from 1087 to 1119 Ma occur in strike-slipPalabras claves:Deformation, Granites, Irumide orogeny, Malawi, Pan-African OrogenyAutores:Alfred Kron̈er, Buchwaldt R., Layer P.W., Ring U., Theofilos ToulkeridisFuentes:googlescopusCOMPOSITION AND PROVENANCE ANALYSIS OF BEACH SANDS IN AN ALMOST ISOLATED SEDIMENTARY SYSTEM - A FIELD STUDY OF THE GALÁPAGOS ARCHIPELAGO
ArticleAbstract: The Galápagos Archipelago is the surface expression of an active hotspot or long-lived mantle plume.Palabras claves:Beach sands, Digital image analysis, GALAPAGOS, Provenance, Raman spectroscopyAutores:Alfred Kron̈er, Buelow Y., Inderwies G., Seelos K., Theofilos Toulkeridis, Yamirka Rojas-AgramonteFuentes:googlescopusEditorial
OtherAbstract:Palabras claves:Autores:Administrador Revistas UTE, Adrián LLerena, Aguilar Gordón F.D.R., Alejandro Speck-Planche, Alfred Kron̈er, Alvaro Santiago Solano Gallegos, Ayestarán S., Benson A., Darío R. Páez, Darwin Ordoñez Iturralde, Davey K., David Ricardo Achig Balarezo, Davila A., Eduardo V. Ludeña, Elisa Bonaccorso, Eugenia Wickens, Eve Cerón Pérez, Floralba del Rocío Aguilar-Gordón, Freddy Portilla Farfán, Gisela Raymond Cornejo, Gustavo Moreno-Martín, Henry Pazmiño A, Hoorn C., Iankova K., Jaime Padilla Verdugo, Jaime Patricio Abad Vázquez, Javier González Díez, Jefferson Moreno Guaicha, Jimena Peñaherrera Wilches, José Luis Crespo-Fajardo, Juan Manuel Guayasamin, Klerkx J., Licinio J., Linder H., Marcos De Donato, María Sol Villagómes, Marian Wiercigroch, Matilde J. Flores Urbáez, Mauricio Ortega-Andrade, Miriam Gallegos, Naranjo-Gil D., Nelson José Labarca Ferrer, Nicola Pontarollo, Nikola Petrovic, Orville-Thomas W.J., Palavitsinis N., Pedro Jimenez-Pacheco, Pedro Longart, Rafael Iturralde Solórzano, Richard J. Aspinall, Schandelmeier H., Smeyers Y.G., Stern R.J., Tilbury J., Viazzo P.P., Xavier Ochoa, Yachana , Yachana Revista Científica, Yntze van der Hoek, Zulbey Rivero de RodríguezFuentes:googlerraaescopusPalaeoproterozoic granulite-facies metamorphism and granitoid intrusions in the Ubendian-Usagaran Orogen of northern Malawi, east-central Africa
ArticleAbstract: The Paleoproterozoic basement of northern Malawi shows evidence for granulite-facies metamorphism olPalabras claves:East-central Africa, geochronology, Granites, Granulite-facies metamorphism, Malawi, Ubendian-Usagaran OrogenAutores:Alfred Kron̈er, Ring U., Theofilos ToulkeridisFuentes:googlescopusPb-Pb age, stable isotope and chemical composition of Archaean magnesite, Barberton Greenstone Belt, South Africa
ArticleAbstract: Trace-element, carbon, oxygen and lead-isotope analyses were carried out to determine the formationPalabras claves:Autores:Alfred Kron̈er, Clauer N., Peucker-Ehrenbrink B., Schidlowski M., Theofilos Toulkeridis, Todt W.Fuentes:googlescopusSequential leaching of silicified Archaean carbonates: A Rb-Sr, Sm-Nd and Pb-Pb isotopic contribution to their tectonic-thermal history (Kaapvaal Craton, South Africa)
ArticleAbstract: Sequential leaching was completed by successive interactions of ultra-pure H2O, HAc, HCl and HNO3 wiPalabras claves:Barberton greenstone belt, Isochron vs. isotrend arrays, Post-depositional thermal events, Rb-Sr, Sm-Nd and Pb-Pb isotope systematics, REE distribution patterns, Sequential leaching procedureAutores:Alfred Kron̈er, Clauer N., Theofilos Toulkeridis, Uysal I.T.Fuentes:googlescopusShear-zone patterns and eclogite-facies metamorphism in the Mozambique belt of northern Malawi, east-central Africa: Implications for the assembly of Gondwana
ArticleAbstract: We report on the first occurrence of Pan-African eclogite from the Mozambique belt of northern MalawPalabras claves:ÁFRICA, Deformation, Eclogite, Gondwana, Metamorphism, Mozambique belt, Shear zonesAutores:Alfred Kron̈er, Buchwaldt R., Layer P.W., Ring U., Theofilos ToulkeridisFuentes:googlescopus