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Chondrules with peculiar REE patterns: implications for solar nebular condensation at high C/O

Pack, Andreas; Shelley, Michael; Palme, Herbert


Rare earth element (REE) data from two ordinary chondrite chondrules show distinct negative chondrite-normalized concentration anomalies of samarium, europium, and ytterbium. The peculiar patterns may be the result of REE gas/solid fractionation at an oxygen fugacity lower than has been assumed for the canonical solar nebula. We suggest that the two ordinary chondrite chondrules acquired the fractionated REE patterns by incorporation of highly reduced, ultrarefractory condensates in their...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: Science
DOI: 10.1126/science.1092906


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