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Differentiated 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: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:googlescopusCharacterization, 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:googlescopusInfluence of anthropogenic activity on the lead isotope signature of Thau Lake sediments (southern France): Origin and temporal evolution
ArticleAbstract: Lead concentrations and isotopic compositions were determined on both bulk sediments deposited in thPalabras claves:Autores:Clauer N., Lancelot J.R., Monna F., Theofilos ToulkeridisFuentes:googlescopusIsotopic dating of low-grade metamorphic shales in northern Namibia (South West Africa) and implications for the orogenic evolution of the Pan-African Damara-Belt
ArticleAbstract: The fine mineral fractions (< 2 μm) from pelitic sediments of the molasse-type Mulden Group in the PPalabras claves:Autores:Alfred Kron̈er, Clauer N.Fuentes:scopusK-Ar AND Rb-Sr DATING OF NANOMETER-SIZED SMECTITE-RICH MIXED LAYERS FROM BENTONITE BEDS OF THE CAMPOS BASIN (RIO DE JANEIRO STATE, BRAZIL)
ArticleAbstract: K-Ar isotopic dating has been applied to alkali-rich nanometer-sized illite separates of bentonitesPalabras claves:Basin history, Bentonite beds, Brazil), Campos Basin (Rio de Janeiro State, K-Ar and Rb-Sr isotopic dating, Scanning Electron Microscopy, Smectite and illite authigenesis, X-Ray diffractionAutores:Aubert A., Clauer N., Środoń J., Theofilos Toulkeridis, Uysal I.T.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: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:googlescopusMultimethod (K-Ar, Rb-Sr, Sm-Nd) dating of bentonite minerals from the eastern United States
ArticleAbstract: Isotopic determinations (K-Ar, Rb-Sr and Sm-Nd), and trace and rare-earth elemental analyses were maPalabras claves:Autores:Chaudhuri S., Clauer N., Goldstein S.L., Theofilos ToulkeridisFuentes:scopusTracing 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