Correlation of Dioctahedral Potassium Micas on the Basis of Their Charge Relations
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Correlation of Dioctahedral Potassium Micas on the Basis of Their Charge Relations A Contribution to Geochemistry. by United States Geological Survey

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Published by s.n in S.l .
Written in English

Book details:

Edition Notes


SeriesU.S. Geological Survey bulletin -- 1036D
ContributionsFoster, M.D.
ID Numbers
Open LibraryOL21728678M

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layer charge relations of the trioctahedral micas. LAYER CHARGE RELATIONS OF THE TRIOCTAHEDRAL MICAS, THEORETICAL Ideally, the layer charge relations of the trioctahedral micas are the same as those of muscovite, as expressed in their theoretical or ideal formulas, [Alo()01o(OH)2]1+ Cited by: Correlation of dioctahedral potassium micas on the basis of their charge relations. U.S. Geol. Survey Bull a. Layer charge relations in dioctahedral and trioctahedral micas. Am. Mineral. Google Scholar —, b. Interpretation of the composition of trioctahedral micas. Radoslovich E.W. () Micas in Macroscopic Forms. In Cited by: 4. MEMORIALS papers on base exchange, the composition and swelling of clays, the layer charge relations of dioctahedral and trioctahedral micas, to name only a f ew. Her dedication to research in geochemistry is strongly brought into focus by the fact that though officially retired at 70 years of age in March. changes occurring in dioctahedral micas that is perplexing to soil chemists and mineralogists is the apparent decrease in negative charge of the mica upon weathering. This apparent decrease in charge arises when the loss of potassium * Present address: Soil Science Department, North Carolina State College, I{aleigh.

In many soils, micas are the principal source of native potassium for plants. On weathering, micas are altered to vermiculite and sometimes to smectitelike minerals and, as such, significantly increase the cation exchange capacity and affect the relative selectivity by soils for various exchangeable by: Occupancy of octahedral and tetrahedral sites in some defined ideal common dioctahedral K micas, arranged according to mgli lines. The mgli-feal coordinates (in . Layer charge and crystalline swelling of expanding phyllosilicates David Alan Laird Iowa State University occupied by A1 in the dioctahedral pyrophyllite structure. Smectites differ from the electrically balanced talc or pyrophyllite structures due to isomorphous substitutions. This book focuses on the structure and quantitative analysis, surface reactivity, genesis, and synthesis of clays and clay minerals. Topics discussed include status of clay mineral structures; layer charge relations in clay minerals of micaceous soils and sediments; mechanical force fields in a clay mineral particle system; and kinetics of.

Angular Dependence of Potassium K-Edge Xanes Spectra of Trioctahedral Micas: Significance for the Determination of the Local Structure And Electronic Behavior of the Interlayer Site. On the basis of a comprehensive investigation of the Raman spectra of 94 natural muscovite and phengite samples, with Si content ranging from to p.f.u., the conclusions that can be drawn are, two different types of Raman spectra for muscovite and phengite samples were obtained in this by: 2. proach. But their work, while concen­ trating on the " Life Layer," is still too comprehensive. In a sense, the Strahler type of systems analysis seems very similar to the older methods and ap­ proaches that have plagued physical geography for years-the attempt to cover everything without a basis for doing so. 1 The record is defined in sec. (f) of the Commission’s Rules of Practice and Procedure (19 CFR § (f)). 2 19 U.S.C. § (c). UNITED STATES INTERNATIONAL TRADE COMMISSION Investigation No. TA (Second Review) POTASSIUM PERMANGANATE FROM CHINA DETERMINATION On the basis of the record1 developed in the subject five .