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Feldspar Minerals

2 Chemical And Textural Properties

Feldspar Minerals - Smith, J.v. - ISBN: 9783642657450
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Bindwijze: Boek
Genre: Mijnbouw
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1 Introduction It Is Quite Impracticable To Give All The Data On Chemical Substitution In Natural Feldspars: Indeed Many Of The Details Are Significant Only To Some Particular Pegmatite Or Rock Body.


Titel: Feldspar Minerals
auteur: Smith, J.v.
Mediatype: Boek
Taal: Engels
Druk: 1
Aantal pagina's: 692
Uitgever: Springer-verlag Berlin And Heidelberg Gmbh & Co. Kg
Plaats van publicatie: DE
NUR: Mijnbouw
Afmetingen: 244 x 170
Gewicht: 1207 gr
ISBN/ISBN13: 9783642657450
Intern nummer: 23512157


3 Chemical Properties and Experimental Techniques.- 13 Analytical Techniques: Their Precision and Accuracy.- 13.1 Introduction.- 13.2 Techniques: Specific Applications to Feldspars.- 13.2.1 Gravimetric and Volumetric Analysis: Colori- metric Methods.- 13.2.2 X-Ray Fluorescence and Electron Microprobe Spectrographic Analysis.- 13.2.3 Optical Spectrography: Flame Photometer.- 13.2.4 Radio-Activation Analysis.- 13.2.5 Mass Spectrometer Analysis.- References.- 14 Chemical Properties.- 14.1 General.- 14.1.1 BriefHistory.- 14.1.2 Basic Stoichiometry: Deviations Therefrom.- 14.1.3 Theoretical Models on Chemical Substitution and Distribution.- 14.2 Major Chemical Substitutions.- 14.3 Experimental Data on Element Distribution.- 14.3.1 Rb, Cs, Sr, and Ba between Two Feldspars.- 14.3.2 Cs and Rb between Feldspar and Aqueous Fluid.- 14.3.3 Sr and Ba between Plagioclase and Silicate Liquid.- 14.3.4 Y and REE between Plagioclase and Silicate Liquid.- 14.3.5 REE between Plagioclase and Aqueous Fluid.- 14.4 Chemical Substitution in Natural Feldspars.- 14.4.1 Introduction.- 14.4.2 Substitution in T Sites.- 14.4.3 Substitution in M Sites.- 14.5 Isotope Distribution.- 14.5.1 Oxygen Isotopes.- 14.5.2 Lead Isotopes.- 14.5.3 K/Ar Isotopic Ratio.- 14.5.4 Rb/Sr Isotopic Ratio.- References.- 4 Growth, Diffusion, Defects and Intergrowths.- 15 General Review of Phenomena and Processes.- References.- 16 Diffusion.- 16.1 General.- 16.2 Tetrahedral Atoms.- 16.2.1 Dry Conditions.- 16.2.2 Hydrothermal Conditions.- 16.3 Oxygen Atoms.- 16.3.1 Exchange with Pure Water.- 16.3.2 Exchange with Salt Solutions.- 16.4 M Atoms.- 16.4.1 Dry Conditions.- 16.4.2 Hydrothermal Conditions.- 16.5 Argon.- 16.5.1 Diffusion in Anorthite.- 16.5.2 Diffusion in K-rich Feldspars.- 16.6 Diffusion, Viscosity and Crystallization Kinetics of Liquid and Glass.- 16.6.1 Diffusion.- 16.6.2 Viscosity.- 16.6.3 Crystallization Kinetics.- 16.7 General Discussion.- References.- 17 Growth and Defects.- 17.1 Growth Mechanisms.- 17.1.1 Experimental Evidence of Growth Mechanisms and on Growth Features.- 17.1.2 Primary Growth from Magmas and Other Fluids.- 17.1.3 Primary Growth in the Solid State.- 17.2 Chemical Zoning.- 17.2.1 Geometrical Description and Nomenclature.- 17.2.2 Syntheses of Zoned Feldspars.- 17.2.3 Zoning in Feldspars of Igneous Rocks.- 17.2.4 Zoning in Feldspars of Metamorphic Rocks.- 17.2.5 Theories of Zoning and Some Further Observations.- 17.3 Tracht, Morphology, Habit.- 17.3.1 Data on Tracht of Synthetic Crystals.- 17.3.2 Data on Tracht of Natural Feldspars.- 17.3.3 Theories of Feldspar Tracht: Suggestions for Further Study.- 17.4 Miscellaneous Textures.- 17.4.1 Oriented Plagioclase Inclusions in K-feldspars.- 17.4.2 Surface Attachments of Feldspars.- 17.4.3 Incomplete Rims.- 17.4.4 Coarse Textures Attributed to Replacement.- 17.5 Dislocations and Etch Features.- References.- 18 Twins and Related Structures.- 18.1 Formal Geometry of Twins.- 18.2 Name, Operation and Structural Explanation of Feldspar Twins.- 18.2.1 Normal Twins.- 18.2.2 Parallel Twins.- 18.2.3 Edge-normal Twins.- 18.2.4 Special Terms and Twin Combinations.- 18.3 Twin-related Structures.- 18.3.1 Periodic Twinning.- 18.3.2 M-type Twinning, the Diagonal Association, Domain and Distorted-twinning.- 18.3.3 Glide Twinning, Pseudo-Twins, Slip Bands.- 18.3.4 "Pericline"-twinning in Pericline and Other Plagioclase: Genetic Significance of Composition Plane.- 18.4 Genesis of Twins.- 18.4.1 Twinning Mechanisms and Nomenclature.- 18.4.2 Twinning Mechanisms and Theories of Twin Frequency.- 18.4.3 Morphological and Other Criteria for Recognition of Twin Mechanisms.- 18.5 Plagioclase Twins.- 18.5.1 Pericline Composition Plane.- 18.5.2 Laboratory Production of Twins.- 18.5.3 Transformation Twinning.- 18.5.4 Mechanical Twinning.- 18.5.5 Growth Twinning.- 18.5.6 Some Studies of Plagioclase Twinning in Rocks.- 18.5.7 Frequency of Twinning in Plagioclase.- 18.5.8 Identification of Plagioclase Twins.- 18.5.9 Etch-pattern and Twin


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