Computer Science
Scientific paper
Mar 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...84..254p&link_type=abstract
Icarus (ISSN 0019-1035), vol. 84, March 1990, p. 254-260.
Computer Science
3
Aluminum Compounds, Atmospheric Composition, Calcium Compounds, Meteoritic Composition, Refractory Materials, Asteroids, Inclusions, Primitive Earth Atmosphere, Meteorites, Refractory Material, Inclusions, Cais, Parent Bodies, Dust, Atmosphere, Thermal Effects, Melting, Deceleration, Gases, Density, Formation, Origin, Mineralogy, Diagrams, Photomicrographs, Models, Calculations, Heating, Timescale
Scientific paper
Ca-Al-rich inclusions (CAIs) in refractory meteorites are shown to have been subject to partial melting during a suitably high gas density/small scale height regime arising during gasdynamic deceleration in a temporary atmosphere around an accreting parent body. The presence of dust in such an atmosphere would have increased the pressure gradient with height, lowering the boil-off rate, and permitting dust particles to become trapped in the partially melted material. CAIs may therefore be studied as probes of a primitive atmosphere.
Bunch Ted E.
Cassen Pat
Chang Sandy
Podolak Morris
Reynolds Ray T.
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