Extended chondrule formation intervals in distinct physicochemical environments: Evidence from Al-Mg isotope systematics of CR chondrite chondrules with unaltered plagioclase.

Al-Mg isotope systematics of twelve FeO-poor (type I) chondrules from CR chondrites Queen Alexandra Range 99177 and Meteorite Hills 00426 were investigated by secondary ion mass spectrometry (SIMS). Five chondrules with Mg#’s of 99.0 to 99.2 and Δ(17)O of −4.2‰ to −5.3‰ have resolvable excess (26)Mg...

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Pubblicato in:Geochim Cosmochim Acta
Autori principali: Tenner, Travis J., Nakashima, Daisuke, Ushikubo, Takayuki, Tomioka, Naotaka, Kimura, Makoto, Weisberg, Michael K., Kita, Noriko T.
Natura: Artigo
Lingua:Inglês
Pubblicazione: 2019
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Article
Accesso online:https://ncbi.nlm.nih.gov/pmc/articles/PMC7121246/
https://ncbi.nlm.nih.gov/pubmed/32255837
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.gca.2019.06.023
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