Earliest rock fabric formed in the Solar System preserved in a chondrule rim

Bland, Philip A; Howard, Lauren E; Prior, David J.; Wheeler, John C.; Hough, Robert M.; Dyl, Kathryn A.

doi:10.1038/ngeo1120

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Earliest rock fabric formed in the Solar System preserved in a chondrule rim

Author(s): Philip A. Bland , Lauren E. Howard , David J. Prior , John Wheeler , Robert M. Hough , Kathryn A. Dyl

Publication date Created: March 27 2011

Publication date (Print): March 27 2011

Journal: Nature Geoscience

Publisher: Springer Nature

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The Physics of Dust Coagulation and the Structure of Dust Aggregates in Space

C. Dominik, A. G. G. M. Tielens (1997)

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Lead isotopic ages of chondrules and calcium-aluminum-rich inclusions.

Yuri Amelin, Alexander Krot, Ian D. Hutcheon … (2002)

The lead-lead isochron age of chondrules in the CR chondrite Acfer 059 is 4564.7 +/- 0.6 million years ago (Ma), whereas the lead isotopic age of calcium-aluminum-rich inclusions (CAIs) in the CV chondrite Efremovka is 4567.2 +/- 0.6 Ma. This gives an interval of 2.5 +/- 1.2 million years (My) between formation of the CV CAIs and the CR chondrules and indicates that CAI- and chondrule-forming events lasted for at least 1.3 My. This time interval is consistent with a 2- to 3-My age difference between CR CAIs and chondrules inferred from the differences in their initial 26Al/27Al ratios and supports the chronological significance of the 26Al-26Mg systematics.