Ab initio calculations of elastic constants of plagioclase feldspars

• Published in: The American mineralogist Vol. 99; no. 11-12; pp. 2344 - 2352
• Main Authors: Kaercher, Pamela, Militzer, Burkhard, Wenk, Hans-Rudolf
• Format: Journal Article
• Language: English
• Published: Washington Mineralogical Society of America 01.11.2014; Walter de Gruyter GmbH
• Subjects: ab initio calculations; andesine; Anisotropy; anorthite; body waves; crust; crystal systems; elastic constants; Elastic properties; elastic waves; feldspar group; framework silicates; Knowledge; labradorite; Measurement; Mineralogy; numerical models; P-waves; plagioclase; Plagioclase feldspars; propagation; S-waves; seismic anisotropy; seismic waves; silicates; Symmetry; triclinic system; velocity

Plagioclase feldspars comprise a large portion of the Earth's crust and are very anisotropic, making accurate knowledge of their elastic properties important for understanding the crust's anisotropic seismic signature. However, except for albite, existing elastic constants for plagioclase...