Effect of melt time and precursor phases on Type B CAI textures

Details Effect of melt time and precursor phases on Type B CAI textures Effect of melt time and precursor phases on Type B CAI textures

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28..859m&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 859.

Computer Science

1

Crystallization, Inclusions, Calcium, Aluminum, Melts (Crystal Growth), Silicates, Spinel, Pyroxenes

Scientific paper

Previous results of crystallization experiments on a Type B Ca-Al-rich inclusion (CAI) composition have shown that CAI textures can be reproduced by crystallization from partially molten droplets using a long melt time (i.e. 3 hrs) and a glass plus spinel starting composition. Chondrule experiments indicate that short heating times and crystalline rather than glassy starting materials may make a big difference in the abundance of nuclei when cooling begins. This study determines the effects of melt time and the nature of the starting material (oxides vs silicates) as a function of maximum temperature and cooling rate on the texture of an average Type B CAI composition.

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