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Feldspars and their Reactions : Environment & Management - Ian Parsons

Feldspars and their Reactions

Environment & Management

By: Ian Parsons (Editor)

Hardcover Published: 28th February 1994
ISBN: 9780792327226
Number Of Pages: 650

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Feldspar minerals make up 60% of the crust of the Earth. They are stable in the upper mantle, and are so abundant in the crust that they form the basis of the classification of igneous rocks. At the surface, feldspars weather to form clay minerals which are the most important mineral constituent of soils. The articles in this book review the chemical reactions of feldspars over the whole sweep of pressure and temperature regimes in the outer Earth, and describe the fundamental aspects of crystal structure which underlie their properties. The book covers intracrystalline reactions, such as order-disorder transformations and exsolution, and transfer of stable and radiogenic isotopes, which can be interpreted to provide insights into the thermal history of rocks. It is suitable for final year undergraduates or research workers. The text describes the crystal structures and cell parameters of feldspar minerals, and their phase transitions in the light of vibrational spectroscopy. The kinetics of melting reactions, liquid-crystal, and sub-solidus phase equilibria at high and low pressure are discussed, and the diffusion of stable and riogenic isotopes, including the role of hydrogen. The basis of the classification of igneous rocks and the natural variation of feldspar microstructures are explored, together with feldspars in pegmatites. Surface chemistry is covered, as well as the kinetics of dissolution of feldspars during weathering.

Preface
Acknowledgements
Frontispiece
Institute Participants
The Crystal Structures of the Aluminium-Silicate Feldsparsp. 1
Aspects of Alkali Feldspar Characterization: Prospects and Relevance to Problems Outstandingp. 51
Phase Transitions and Vibrational Spectroscopy in Feldsparsp. 103
Appendix 1: Deviation of the Gibbs Free Energy for a Phase Transition with Continuous Local Potentialsp. 149
Appendix 2: On the Intercorrelation of Al, Si Ordering and the Generation of Spontaneous Strainp. 153
Partial Melting Reactions of Plagioclases and Plagioclase-Bearing Systemsp. 161
Ternary Feldspar/Melt Equilibria: A Reviewp. 195
Subsolidus Phase Relations of the Plagioclase Feldspar Solid Solutionp. 221
Feldspars at High Pressurep. 271
Recent Work on Oscillatory Zoning in Plagioclasep. 313
Isotopic Equilibrium/Disequilibrium and Diffusion Kinetics in Feldsparsp. 351
Hydrogen in Feldspars and Related Silicatesp. 383
Argon Diffusion in Feldsparsp. 415
Feldspars in Igneous Rocksp. 449
Evolution of Feldspars in Granitic Pegmatitesp. 501
Surface Chemistry of Feldsparsp. 541
Feldspars in Weatheringp. 595
Subject Indexp. 631
Table of Contents provided by Blackwell. All Rights Reserved.

ISBN: 9780792327226
ISBN-10: 0792327225
Series: Environment & Management
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 650
Published: 28th February 1994
Publisher: SPRINGER VERLAG GMBH
Country of Publication: NL
Dimensions (cm): 23.39 x 15.6  x 3.66
Weight (kg): 1.13