Oxygen isotopes in calcium^aluminum-rich inclusions from enstatite chondrites: new evidence for a single CAI source in the solar nebula
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چکیده
Calcium^aluminum-rich inclusions (CAIs) from enstatite chondrites have large 16O excesses, similar to CAIs in carbonaceous and ordinary chondrites, and are also similar in morphology, mineralogy and Al^Mg isotopic systematics. These similarities provide new evidence that most CAIs might have formed in a single, restricted nebular locale and were then distributed unevenly throughout the various chondrite accretion regions. ß 2000 Elsevier Science B.V. All rights reserved.
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تاریخ انتشار 2000