The effect of natural weathering on the chemical and isotopic compositions of biotites
References (39)
Strontium and argon isotopes in naturally weathered biotites, muscovites and feldspars
Chem. Geol.
(1981)- et al.
Hydrogen and oxygen isotope systematics in weathering profiles
Geochim. Cosmochim. Acta
(1972) - et al.
Hydrogen and oxygen isotope exchange reactions between clay minerals and water
Geochim. Cosmochim. Acta
(1976) Rare earth elements in the sedimentary cycle: a summary
Chem. Geol.
(1974)- et al.
The oxygen and hydrogen isotope geochemistry of clay minerals
Geochim. Cosmochim. Acta
(1970) - et al.
Partition coefficient of rare earth elements between igneous matrix material and rock forming mineral phenocrysts
Geochim. Cosmochim. Acta
(1970) - et al.
Subcommission on Geochronology: Convention on the use of decay constants in geo- and Cosmochronology
Earth Planet. Sci. Lett.
(1977) Role of hydroxyl orientation in mica alteration
Bull. Geol. Soc. Amer.
(1960)Biogéocénoses et morphogenèse actuelle de certains pediments du Bassin Tchadien
IXth Intern. Congr. Soil Sci., Adelaide
(1968)Genèse et évolution de deux toposéquences de sols tropicaux du Tchad. Interprétation bio- géodynamique
Mém. ORSTOM
(1973)
Un nouveau type d'accumulation oblique dans les paysages géochimiques: l'invasion remontante de la montmorillonite
C.R. Acad. Sci. Paris
Isotopic evidence for dramatic climatic changes in East Africa during the Pleistocene
Nature
Géochimie isotopique du strontium des milieux sédimentaires. Application à la géochronologie de la couverture du craton ouest-africain
Mém. Sci. Géol., Strasbourg
Behaviour of strontium and argon isotopes in biotites during progressive natural weathering
A procedure for geochemical interpretation of terrestrial rare earth abundances patterns
J. Geophys. Res.
Isotopic variations in meteoric waters
Science
World survey of isotope concentration in precipitation, 1972–1975
I.A.E.A. Technical Reports Series N° 192
Hydrogen
The effect of cation substitutions on the physical properties of trioctahedral micas
Amer. Mineral.
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Disparities in oxygen isotopes of detrital and igneous zircon identify erosional bias in crustal rock record
2022, Earth and Planetary Science LettersMicas from mariupolite of the Oktiabrski massif (SE Ukraine): An insight into the host rock evolution - Geochemical data supported by Raman microspectroscopy
2015, Spectrochimica Acta - Part A: Molecular and Biomolecular SpectroscopyCitation Excerpt :Hence, the trioctahedral mica is quite fresh. Clauer et al. [29] noted that fresh micas are enriched in K and impoverished in Na and Ca. The chemical composition of fresh dark mica indicates the total Al values of 1.963–2.239 a.p.f.u, pronounced variations of Mg contents, i.e. 0.842–2.135 a.p.f.u. and the average Fe2+/(Fe2+ + Mg) ratio of 0.725.
Dating deformation in the Gran Paradiso Massif (NW Italian Alps): Implications for the exhumation of high-pressure rocks in a collisional belt
2012, LithosCitation Excerpt :It cannot be ruled out that biotite, as the main carrier of radiogenic Sr in this domain, was affected by post-deformational alteration or incipient weathering. Biotite is known to be easily oxidised or chloritised during such processes, which tends to disturb and usually rejuvenate apparent Rb/Sr (and K-Ar) ages (Chen et al., 2007; Clauer et al., 1982; Jeong et al., 2006). If this assertion is correct, the apparent age of 30.1 ± 5.4 Ma can be interpreted as a minimum age for the end of ductile deformation in this sample or, alternatively, as a minimum age of pre-alteration closure of the Rb/Sr system in biotite of this sample.
Chemical and K-Ar systematics of a mylonitic mica after natural and experimental interactions with varied fluids
2012, Chemical GeologyCitation Excerpt :The experiments were also designed to provide a basis for an evaluation of the “conventional” wisdom that holds that radiogenic 40Ar is preferentially removed from mica-type particles with respect to K under alteration conditions of any kind. Only a limited literature is presently available on this topic that is critical for a reliable application of the K–Ar and 40Ar/39Ar methods to mica-type materials during natural hydrothermal alteration (e.g., Grove and Harrison, 1996) or continental weathering (e.g., Clauer et al., 1982). A mylonite rock sample from the Riedel faulting zone in the Scottish Highlands was collected at Ben Oss Gully, which is located about 5 km to the S of the Tyndrum city and near a Pb–Zn mine, both about 60 km NNE of Glasgow.
Sr isotopes as a tracer of weathering processes and dust inputs in a tropical granitoid watershed, Luquillo Mountains, Puerto Rico
2009, Geochimica et Cosmochimica Acta