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Science 11 March 1966:
Vol. 151. no. 3715, pp. 1222 - 1225
DOI: 10.1126/science.151.3715.1222
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Articles

Kyanite-Sillimanite Equilibrium at 750°C

Robert C. Newton 1

1 Department of the Geophysical Sciences, University of Chicago, Chicago, Illinois

Reversal of the kyanite-sillimanite inversion has been accomplished hydrothermally at 750°C. The inversion pressure at 750°C is 8.1 ± 0.4 kilobars. The calculated pressuretemperature slope at this point is 17.7± 1.0 bars per degree celsius. Geologically, this result seems more plausible than previous estimates of the location of the boundary. When combined with other work on the relative stability of andalusite, the data indicate that andalulsite cannot be stable at a pressure greater than 4.2 kilobars.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Sierra Nevada Batholith: The batholith was generated within a synclinorium.
P. C. Bateman, P. C. Bateman, and J. P. Eaton (1967)
Science 158, 1407-1417
   Abstract »    PDF »
Kyanite-Andalusite Equilibrium from 700{degrees} to 800{degrees}C.
R. C. Newton and R. C. Newton (1966)
Science 153, 170-172
   Abstract »    PDF »


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