Documentos de Clauer N.

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Mostrando 7 resultados de: 7

K-Ar AND Rb-Sr DATING OF NANOMETER-SIZED SMECTITE-RICH MIXED LAYERS FROM BENTONITE BEDS OF THE CAMPOS BASIN (RIO DE JANEIRO STATE, BRAZIL)

Article

Abstract: K-Ar isotopic dating has been applied to alkali-rich nanometer-sized illite separates of bentonites

Palabras 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 diffraction

Autores:

Aubert A., Clauer N., Środoń J., Theofilos Toulkeridis, Uysal I.T.

Fuentes:

google

scopus

K-Ar dating of white micas from the Ventersdorp Contact Reef of the Witwatersrand Basin, South Africa: Timing of post-depositional alteration

Article

Abstract: White micas from metamorphosed and hydrothermally-altered basaltic lavas, conglomerates, quartzites

Palabras claves:

Autores:

Clauer N., Meyer F.M., Robb L.J., Theofilos Toulkeridis, Zhao B., Zwingmann H.

Fuentes:

google

scopus

Regional magnetic overprinting of Witwatersrand Supergroup sediments, South Africa.

Article

Abstract: Shales from the late Archean Wiwatersrand Supergroup of South Africa yield stable, well-grouped rema

Palabras claves:

Autores:

Alfred Kron̈er, Clauer N., Layer P.W., McWilliams M.

Fuentes:

scopus

Mineralogical, 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

Article

Abstract: Mineralogical, geochemical (REE), and isotopic (K-Ar, Rb-Sr, δ18O) data of < 0.2 μm clay fractions f

Palabras claves:

Autores:

Clauer N., Gauthier-Lafaye F., Sizun J.P., Theofilos Toulkeridis, Weber F.

Fuentes:

google

scopus

Pb-Pb age, stable isotope and chemical composition of Archaean magnesite, Barberton Greenstone Belt, South Africa

Article

Abstract: Trace-element, carbon, oxygen and lead-isotope analyses were carried out to determine the formation

Palabras claves:

Autores:

Alfred Kron̈er, Clauer N., Peucker-Ehrenbrink B., Schidlowski M., Theofilos Toulkeridis, Todt W.

Fuentes:

google

scopus

Multimethod (K-Ar, Rb-Sr, Sm-Nd) dating of bentonite minerals from the eastern United States

Article

Abstract: Isotopic determinations (K-Ar, Rb-Sr and Sm-Nd), and trace and rare-earth elemental analyses were ma

Palabras claves:

Autores:

Chaudhuri S., Clauer N., Goldstein S.L., Theofilos Toulkeridis

Fuentes:

scopus

Sequential leaching of silicified Archaean carbonates: A Rb-Sr, Sm-Nd and Pb-Pb isotopic contribution to their tectonic-thermal history (Kaapvaal Craton, South Africa)

Article

Abstract: Sequential leaching was completed by successive interactions of ultra-pure H2O, HAc, HCl and HNO3 wi

Palabras 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 procedure

Autores:

Alfred Kron̈er, Clauer N., Theofilos Toulkeridis, Uysal I.T.

Fuentes:

google

scopus

Mostrando 7 resultados de: 7

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Palabras Claves

K-Ar AND Rb-Sr DATING OF NANOMETER-SIZED SMECTITE-RICH MIXED LAYERS FROM BENTONITE BEDS OF THE CAMPOS BASIN (RIO DE JANEIRO STATE, BRAZIL)

K-Ar dating of white micas from the Ventersdorp Contact Reef of the Witwatersrand Basin, South Africa: Timing of post-depositional alteration

Regional magnetic overprinting of Witwatersrand Supergroup sediments, South Africa.

Mineralogical, 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

Pb-Pb age, stable isotope and chemical composition of Archaean magnesite, Barberton Greenstone Belt, South Africa

Multimethod (K-Ar, Rb-Sr, Sm-Nd) dating of bentonite minerals from the eastern United States

Sequential leaching of silicified Archaean carbonates: A Rb-Sr, Sm-Nd and Pb-Pb isotopic contribution to their tectonic-thermal history (Kaapvaal Craton, South Africa)