Accessory Phase Thermometry
Conference Abstracts
AGU, Spring 1998 (html summary)GSA, Fall 1998 (html summary)
AGU, Spring 1999 (html summary)
Published Papers
An empirical YAG-xenotime thermometer (Contributions to Mineralogy and Petrology, 138, 51-58, 2000)Monazite-xenotime-garnet equilibrium in metapelites and a new monazite-garnet thermometer (Journal of Petrology, 42, 2083-2107, 2001)
A number of research papers in the last five years have demonstrated systematic realationships between accessory phase composition and temperature of equlibration. Central to this argument is the interpretation that the accessory (and major) phases used as thermometers have achieved compositional equilibrium. While evidence exists, in some cases, for lack of equilibrium (see work of Carlson, and Carlson and Chernoff), our work has demosntrated that a near approach to compositional equilibrium may be realized.
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| YAG-xenotime empirical geothermometer (Pyle and Spear, 2000), showing rapid drop in XYAG in xenotime-bearing samples of low-to-medium metamorphic grade. | Application of YAG-monazite thermometer yields temperatures for early monazite growth and syn-staurolite-in monazite growth. From Pyle et al., J Pet, 2001 |
