Cooling History of Orthopyroxenes
- 18 July 1969
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 165 (3890) , 285-287
- https://doi.org/10.1126/science.165.3890.285
Abstract
Order-disorder transitions between ferrous iron and magnesium in orthopyroxenes [minerals close to the composition (Fe, Mg) SiO3] occur rapidly between approximately 480° and 1000°C. Disordering and ordering have been studied experimentally. The determination of the metastable ferrous iron site occupancy in orthopyroxenes from rapidly cooled volcanic rocks provides information on the cooling rates, especially from 600° to 480°C.Keywords
This publication has 4 references indexed in Scilit:
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- Mg2+– Fe2+distribution in metamorphic and volcanic orthopyroxenesZeitschrift für Kristallographie, 1967
- Distribution of Magnesium and Iron between Orthopyroxene and Calcic Pyroxene in Natural Mineral AssemblagesThe Journal of Geology, 1963
- Energetics of certain silicate solid solutionsGeochimica et Cosmochimica Acta, 1962