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A shock-induced phase change in orthoclase

Ahrens, Thomas J. and Liu, Hsi-Ping (1973) A shock-induced phase change in orthoclase. Journal of Geophysical Research, 78 (8). pp. 1274-1278. ISSN 0148-0227. doi:10.1029/JB078i008p01274.

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New shock compression data to 340 kb for single-crystal orthoclase (along (001)) demonstrate the onset of a shock-induced phase change at ∼115 kb. Along the Hugoniot a mixed-phase region extends to ∼300 kb, above which the data are believed to correspond to the properties of a high-pressure phase having the hollandite structure (zero pressure density of 3.84 g/cm^3) reported by Ringwood et al. If the hollandite value for the zero pressure density is used, the zero pressure bulk modulus of this phase is approximately 2.8 ± 0.2 Mb.

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Additional Information:Copyright 1973 by the American Geophysical Union. (Received November 14, 1972.) We are grateful for the help of R. V. Gibbons, F. Hörz, and A. Chodos in obtaining and characterizing our samples and for that of D. Johnson, J. Lower, and It. Richeson in constructing and carrying out the experiments. This research was supported under NASA grant NGL-05-002-105 and NSF grant GA-21396. Contribution 2244, Division of Geological and Planetary Sciences, California Institute of Technology.
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Caltech Division of Geological and Planetary Sciences2244
Issue or Number:8
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Official Citation:Ahrens, T. J., and H.-P. Liu (1973), A shock-induced phase change in orthoclase, J. Geophys. Res., 78(8), 1274–1278, doi:10.1029/JB078i008p01274.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:51407
Deposited By: George Porter
Deposited On:07 Nov 2014 16:01
Last Modified:10 Nov 2021 19:10

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