P-T path calculations
Program Gibbs was originally
written to calculate P-T paths from zoned garnets, but has expanded
far beyond this initial design.
Below is an example of a P-T path calculated
from a zoned garnet from southwestern Vermont.
Mn zoning in garnet from near Putney, Vermont and P-T path
calculated from this zoning
- Selverstone, J., Spear, F. S., Franz, G. and Morteani, G.
(1984) High pressure metamorphism in the SW Tauern window, Austria:
P-T paths from hornblende-kyanite-staurolite schists. Journal
of Petrology, 25, 501-531.
- Spear, F. S. and Selverstone, J. (1983) P-T paths from zoned
minerals: A new technique for deciphering tectonic processes.
Eos, 64, 352.
- Spear, F. S. (1986) P-T PATH:A FORTRAN program to calculate
pressure-temperature paths from zoned metamorphic garnets. Computers
in Geoscience, 12, 247-266.
- Spear, F. S. and Rumble, D., III (1986) Pressure, temperature
and structural evolution of the Orfordville Belt, west-central
New Hampshire. Journal of Petrology, 27, 1071-1093.
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