Isogeochemists:

Let me weigh in to this thread with two more older, "undercited" papers
from former mentors and colleagues at Penn State:

Deines, Peter, 1977, On the oxygen isotope distribution among mineral
triplets in igneous and metamorphic rocks:  Geochimica et Cosmochimica
Acta, v. 41, p. 1709-1730.

Downs, W. F., Touysinhthiphonexay, Yen, and Deines, Peter, 1981, A direct
determination of the oxygen isotope fractionation between quartz and
magnetite at 600 and 800°C and 5 kbar:  Geochimica et Cosmochimica Acta, v.
45, p. 2065-2072.

Steve


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Stephen S. Howe                         Office:  (518) 442-5053
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