Calcium-Aluminum-rich Inclusions: Major Unanswered Questions

Details Calcium-Aluminum-rich Inclusions: Major Unanswered Questions Calcium-Aluminum-rich Inclusions: Major Unanswered Questions

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..341..225m&link_type=abstract

Chondrites and the Protoplanetary Disk, ASP Conference Series, Vol. 341, Proceedings of a workshop held 8-11 November 2004 in Ka

Astronomy and Astrophysics

Astronomy

9

Scientific paper

Calcium-aluminum-rich inclusions (CAIs) preserve a record of events in the earliest solar system, the timing of these events and the conditions under which they occurred. Recent technical (analytical instrumentation) and theoretical advances have enabled researchers to extract an astonishing wealth of new information from CAIs, such as: (1) all CAIs may have formed in a restricted region or regions near the protosun and then were transported radially outward to the various chondrite-accretion regions; (2) the CAI formation "event" may have been very short in duration, possibly less than 105 years; and (3) within the region(s) where CAIs formed, there were multiple isotopic reservoirs that experienced little intermixing. However, major questions remain unanswered, and this review highlights those issues.

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