Astronomical versus meteoritic constraints

As discussed above, the data from astronomical observations and from chondritic meteorites probe very different regions of the protoplanetary disks. In addition, the grain size information obtained by the two approaches may not be equivalent. Care 

Bernatowicz, T., Groat, T Daulton, T. 2006, in Meteorites and the Early Solar System II, ed. D. Lauretta H. J. McSween, University of Arizona, 109-126. 

Astromical Society of the Pacific Conference Series, 309, 369. 

Bouwman, J., Meeus, G., de Koter, A., et al. 2001, Astronomy and Astrophysics, 375, 950. Brearley, A. J. 1991, Lunar and Planetary Institute Conference Abstracts, 22, 133. Brearley, A. J. 1993, Geochimica et Cosmochimica Acta, 57, 1521. 

Brearley, A. J. 2004, Lunar and Planetary Science Conference, League City, TX, March 15-19, Abstract 1896 (CDrom). 

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