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Description

This data set comprises 3 spreadsheets (with multiple tabs) containing data described and discussed in Nik Christensen's posthumously submitted (and soon to be published) article "A compilation of elastic anisotropy measurements form metamorphic rocks" in Seismica. That contribution summarizes a detailed experimental investigation of the anisotropic properties of metamorphic rocks carried out to hydrostatic pressures of 1GPa. Each measurement averages the orientations and correct elastic properties of hundreds of thousands of grains, as well as takes into account the important effects of grain shape and grain boundaries on velocities. Common metamorphic rocks, including slates, pyllites, quartz mica schists, blueschists, marbles and dunites are typically well characterized by axial symmetry. Rocks with well developed foliations and lineations are better characterized by orthorhombic symmetry.