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A 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: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:googlescopusCrystallization conditions of fundamental particles from mixed-layer illite-smectite of bentonites based on isotopic data (K-Ar, Rb-Sr and δ<sup>18</sup>O)
ArticleAbstract: Rb-Sr and oxygen isotope studies, in addition to K-Ar isotopic determinations published previously,Palabras claves:Bentonites, East-Slovak Basin, Fundamental particles, Isotopic tracing, Rb-Sr, δ O 18Autores:Clauer N., Liewig N., Pierret M., Theofilos ToulkeridisFuentes:googlescopusEffect of thermal maturation on the K-Ar, Rb-Sr and REE systematics of an organic-rich New Albany Shale as determined by hydrous pyrolysis
ArticleAbstract: Hydrous-pyrolysis experiments were conducted on an organic-rich Devonian-Mississippian shale, whichPalabras claves:Hydrous pyrolysis, K-Ar, Mineral-organic interactions, New Albany shale, Rb-Sr, REEAutores:Chaudhuri S., Clauer N., Lewan M.D., Theofilos ToulkeridisFuentes:googlescopusDifferentiated hydrothermal and meteoric alterations of the Lueshe carbonatite complex (Democratic Republic of Congo) identified by a REE study combined with a sequential acid-leaching experiment
ArticleAbstract: The behavior of rare-earth elements (REE) during hydrothermal alteration and progressive weatheringPalabras claves:Carbonatite, Hydrothermal alteration, Meteoric weathering, Rare-earth elements, Republic of CongoAutores:Bilal E., Clauer N., Nasraoui M., Theofilos ToulkeridisFuentes:googlescopusGeochemical and Sr-Nd isotope ratios in Cenozoic basalts from Eritrea: Evidence for temporal evolution from low-Ti tholeiitic to high-Ti alkaline basalts in Afro-Arabian continental flood basalt province
ArticleAbstract: Mid-Tertiary continental flood basalts covering large part of Eritrea, Ethiopia and Yemen comprise aPalabras claves:Autores:Asmerom Y., Teklay M., Theofilos ToulkeridisFuentes:googlescopusGeochemistry of Water and Gas Emissions From Cuicocha and Quilotoa Volcanic Lakes, Ecuador
ArticleAbstract: There are hundreds of volcanic lakes around the world that represent an important hazard due to thePalabras claves:Cuicocha and Quilotoa lakes, ECUADOR, Gas emissions, geochemistry of water, volcanic gases, volcanic lakeAutores:Alonso M., Amonte C., Asensio-Ramos M., Cordero M., Hernández P.A., Melián G.V., Padrón E., Pérez N.M., Somoza L., Theofilos ToulkeridisFuentes:googlescopusSm-Nd dating of Fig Tree clay minerals of the Barberton Greenstone Belt, South Africa
ArticleAbstract: Sm-Nd isotopic data from carbonate-derived clay minerals of the 3.22-3.25 Ga Fig Tree Group, BarbertPalabras claves:Autores:Alfred Kron̈er, Clauer N., Goldstein S.L., Lowe D.R., Theofilos ToulkeridisFuentes:googlescopusTectonic-thermal constraints on the Pb-Zn ore deposits from southeastern french central massif by K-Ar and Pb-Pb dating of illite
ArticleAbstract: Illite-rich size-fractions (<0.2, <0.4, 0.4-1, 0.4-2 and <2 µm) of Cambrian, Permian, Triassic and JPalabras claves:Illite-type clays, K-Ar and Pb-Pb dating, Pb-Zn ore district, Southeastern French Central MassifAutores:Liewig N., Theofilos ToulkeridisFuentes:googlescopusTracing the source of gypsum in New Caledonian soils by REE contents and S-Sr isotopic compositions
ArticleAbstract: Gypsum minerals forming in pedogenic environments in New Caledonia were examined for their S and SrPalabras claves:Gypsum, New Caledonia, Rare Earth Elements, S isotopes, Sr isotopesAutores:Clauer N., Podwojewski P., Theofilos ToulkeridisFuentes:googlescopus