NASA NTRS · 19890040109
Thermal metamorphism
Abstract
Most chondrites have experienced thermal metamorphism, resulting in changes in texture, mineralogy and possibly chemical composition. The physical conditions for metamorphism range from approximately 400 to 1000 C at low lithostatic pressure. Metamorphism may have resulted from decay of short-lived radionuclides, electromagnetic induction or accretion of hot materials. Several thermal models for chondrite parent bodies have been proposed. The least metamorphosed type-3 chondrites probably carry the most information about the early solar system, but even these have been affected to some degree by thermal processing.
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Mcsween, Harry Y., Jr., Sears, Derek W. G., Dodd, Robert T.. 1988-01-01. Thermal metamorphism. https://ntrs.nasa.gov/citations/19890040109
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