Results 111 to 120 of about 13,020 (240)
Matériaux de mullite à microstructure organisée composés d'assemblage muscovite-kaolinite [PDF]
, 2007 Des matériaux de mullite à microstructure organisée sont réalisés à partir d'assemblages des minéraux muscovite et kaolinite. L'étude par diffraction Rx et de neutrons de la muscovite montre l'effet de la température sur la réduction de l'organisation ...
BLANCHART, Philippe +1 more
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Geochemical Disequilibrium at the Brittle‐Ductile Transition
Geochemistry, Geophysics, GeosystemsWe investigate the microtextural, microchemical, and isotopic effects of late‐stage ductile deformation in quartzite mylonites and kyanite–muscovite–quartz veins from the Raft River shear zone (Utah).
Raphaël Gottardi +3 more
doaj +1 more source
International Journal of Speleology, 2015 An unusual authigenic origin for halloysite and gibbsite is reported in a stalactite from Agios Georgios Cave, Kilkis. This speleothem includes mostly pure calcite whereas minor areas of Mg-rich calcite and scarce dolomite are present in four growth ...
Elena Ifandi, University of Patras +4 more
doaj +1 more source
Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.Abstract Near‐seafloor marine sediments on active margins have been shown to be stronger than those on passive margins. However, the reasons for this are not fully understood. To investigate the role of intrinsic properties, we performed resedimentation and oedometer tests and measured undrained shear strength, grain size, mineralogy, and plasticity on
Bailey Fitzgerald +3 more
wiley +1 more source
Sur quelques occurrences de muscovite en Bretagne. [PDF]
, 2009 ISSN : 1298-2938International audienceTrès fréquente an Armorique, la muscovite cristallise dans des contextes variés.
Chauris, Louis
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Análisis del tratamiento en medio ácido de partículas de pizarra
Boletín de la Sociedad Española de Cerámica y Vidrio, 2002 Slate particles were treated in liquid acid medium. The results were analyzed as a function of the disolved ions and specific surface area values. Infrared spectroscopy (FT-IR) and X- ray difraction were also used in this study.
Rodríguez, María A. +4 more
doaj
Neoarchaean and Palaeoproterozoic tectono-metamorphic events along the southern margin of the Zimbabwe craton: Insights from muscovite 40Ar/39Ar geochronology from rare-metal pegmatites, Zimbabwe [PDF]
Muscovite 40Ar/39Ar geochronology on ten samples from complex-type, rare-metal (e.g., Li, Cs, Ta, Rb, Be, Nb, Sn and W) pegmatites from the Bikita and Mweza pegmatite fields in Zimbabwe yield ages that range from ca. 2622–1940 Ma.
Hofmann, A. +3 more
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Anomalous Thermal Expansion of Muscovite Mica Implanted with Noble Gases [PDF]
, 1992 Natural phlogopite micas may contain occluded water which gives rise to anomalous reversible thermal expansion behavior at high temperatures. Expansions as much as 200% at 600°C, are observed, when water vapor bubbles form within the mica and expand ...
Xu, Qing
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Pegmatites of the Mokromoskovsk granite pluton
Вісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. ЕкологіяIntroduction. The Mokromoskovsky pluton is composed of light gray granites and dark gray granodiorites. Light gray granites are composed of oligoclase (35-40%), microcline (20-25%), quartz (30-35%), and biotite (2-5%).
Yuliia Lytvynenko
doaj +1 more source
Results in Surfaces and InterfacesSupported metal nanoparticles on various substrates have demonstrated high activity efficiency, resistance to aggregation, and ease of recyclability. In this study, the expansion of natural muscovite was investigated through a process involving acidic ...
Abduraboh Alraae +6 more
doaj +1 more source