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搜索结果: 1-14 共查到理学 plagioclase相关记录14条 . 查询时间(0.046 秒)
The goal of this study is to explore the relationship between the oxygen fugacity of a melt and the Fe3+/FeTotal of plagioclase crystals produced from the melt. If the relationship between the two can...
We report here technical details of 26Al–26Mg dating of single plagioclase grains located in a chondrule of the Efremovka CV3 chondrite using a high spatial resolution secondary ion mass spectrometer...
The giant plagioclase basalts (GPBs) with plagioclase phenocrysts that reach up to 3 cm in length are found near Jabalpur in the northeastern part of the Deccan Volcanic Province (DVP). The thickness ...
Plagioclase crystals characterized by compositional zoning are typical of the Zigana Granitoid (ZG), NE Turkey. The zoned crystals, which show textural equilibrium with the assemblage quartz + plagio...
Transmissionandanalyticalelectronmicroscopywereusedtoexaminerelationships betweenmicrostructuresandcompositionsingreenschist-andamphibolite-faciesmeta- morphicplagioclase(albiteandoligoclase)fromthe...
Abstract: Halloysite and kaolinite coexist in anorthosite weathering profiles in the Sancheong district, Korea. X-ray diffraction (XRD) analysis on a transect of partially weathered anorthosites revea...
PotassiumcalciumfeldsparinclusionsinaBggildplagioclasewereinvestigatedbyanalyticalhighresolutiontransmissionelectronmicroscHRTEM),andtheformationprocessoftheseinclusionsisconsideredbasedontheAlSiorder...
Regional structural interpretation, thermobarometry, and Gibbs-method calculations werecombined to determine an approximate P-Tpath for kyanite-grade metapelitic rocks ofthe Baltimore Gneiss terrane. ...
Plagioclase, the mostabundant phenocryst at MountPinatubo, displays varying textures and compositions within the 1991 eruption products. In June 7-14 dome-forming ande-site, plagioclase phenocrysts sh...
Weathered perthite and mixed muscovite-kaolinite from a kaolinitic granite at Trial Hill in east Queensland and kaolinized sericitic alteration from a granite from the Ardlethan Tin Mine of New South ...
Abstract: Analytical and high-resolution transmission electron microscopy of weathered plagioclase and K-feldspar provided microtextural and chemical data that suggest a sequential formation of weathe...
Imogolite occurs as tiny bumps less than 0.05 祄 in diameter and about 0.3 祄 long on amorphous thin layers on the surface of weathered plagioclase. The bumps grow outward from the surface to form proje...
Plagioclase feldspar is one of the outermost minerals destroyed in the hydrothermal alteration of quartz monzonite of the Butte district, Montana. Single grains of andesine plagioclase showing varying...

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