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The Nature of Garnierites—II Electron-Optical Study
Nature of Garnierites Electron-Optical Study
2011/11/18
Abstract: Electron micrographs of 7 Å-type and 10 Å-type garnierites have been recorded at 5·104–105X magnifications to show the morphological character of these minerals, and at 106X magn...
Electron-Optical Study of Hydrothermal Fringe Alteration of Plagioclase in Quartz Monzonite, Butte District, Montana
Electron-Optical Study Hydrothermal Fringe Alteration Plagioclase Quartz Monzonite
2012/2/21
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...
The combined use of electron microscopy and of selected area diffraction (SAD) has been applied to the study of montmorillonites from Wyoming and from Camp-Berteaux, of nontronite, and of hectorite. T...
Electron-Optical Study of Alteration to Smectite in the Cheto Clay Deposit
Electron-Optical Study Alteration Cheto Clay Deposit
2011/11/16
Volcanic ash of latitic composition in the Pliocene Bidahochi formation of northeastern Arizona has been altered in place to smectite clay. The Cheto clay, a 4-ft thick bed of high-quality activable s...