The Velocity of Compressional Waves in Rocks to 10 Kilobars, Part 2

By F. Birch. 2013

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Archean Geodynamics and the Thermal Evolution of Earth (2013, methodology): “[2002] also showed that the relation between P-wave velocity and crustal density is best approximated by Birch’s law for rocks with mean atomic weight of ~21 [Birch, 1961], so we adopt”
A reference Earth model for the heat‐producing elements and associated geoneutrino flux (2013, background): “[ 47 ] Ultrasonic compressional and shear wave velocities have been determined for a variety of crustal rocks at different pressures and temperatures [e.g., Birch , 1960].”
3‐D multiobservable probabilistic inversion for the compositional and thermal structure of the lithosphere and upper mantle. I: a priori petrological information and geophysical observables (2013, background): “We also include in this figure the predictions from the original fit of Birch for mantle rocks [Birch, 1961] at pressures up to 1 GPa and the more recent estimation of Christensen and Mooney [1995] for sub-Moho depths.”
Digital rock physics: numerical prediction of pressure-dependent ultrasonic velocities using micro-CT imaging (2012, methodology): “The acoustic velocities in the sample were measured over a range of confining pressures from an initial value of 230 MPa down to 5 MPa with the pulse transmission technique (Birch 1960; Christensen 1965; Toksöz et al. 1979) at 3 MHz.”