Mostrando 10 resultados de: 22
Subtipo de publicación
Article(22)
Publisher
Precambrian Research(4)
Chemical Geology(3)
Clays and Clay Minerals(2)
Geology(2)
Applied Geochemistry(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: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:googlescopusFluctuations of Caspian Sea level: Beyond climatic variations?
ArticleAbstract: The continued rising mode, since about 1978, in the level of the Caspian Sea cannot be ascribed to aPalabras claves:Caspian Sea evolution, Hydrogeochemistry, Mass-balance calculation, Sr isotope geochemistryAutores:Blanc G., Chaudhuri S., Clauer N., 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: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:scopusInfluence 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:googlescopusMineralogical, geochemical (REE), and isotopic (K-AR, RB-SR, δ<sup>18</sup>O) evolution of the clay minerals from faulted, carbonate-rich, passive paleomargin of southeastern Massif Central, France
ArticleAbstract: Mineralogical, geochemical (REE), and isotopic (K-Ar, Rb-Sr, δ18O) data of < 0.2 μm clay fractions fPalabras claves:Autores:Clauer N., Gauthier-Lafaye F., Sizun J.P., Theofilos Toulkeridis, Weber F.Fuentes:googlescopus