1975•USRA Houston Repository (Lunar and Planetary Institute)Open access
Experimental modeling of the cooling history of Apollo 12 olivine basalts.
Colin H. Donaldson, Thomas M. Usselman, Richard J. Williams, G. E. Lofgren
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Abstract
An analog of the Apollo 12 olivine vitrophyres has been crystallized in a 1-atm gas-mixing furnace at cooling rates ranging between 1250 and 0.7°/hr and isothermally at degrees of supercooling ranging from 10°C to 325°C. Mineral chemistry, crystal shapes, grain sizes and textures are systematically related to cooling rate and degree of supercooling.
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