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Can galactic chemical evolution explain the oxygen isotopic variations in the solar system?

Lugaro, Maria; Liffman, Kurt; Ireland, Trevor; Maddison, Sarah T

Description

A number of objects in primitive meteorites have oxygen isotopic compositions that place them on a distinct, mass-independent fractionation line with a slope of one on a three-isotope plot. The most popular model for describing how this fractionation arose assumes that CO self-shielding produced16O-rich CO and16O-poor H2O, where the H2O subsequently combined with interstellar dust to form relatively16O-poor solids within the solar nebula. Another model for creating the different reservoirs...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/68636
Source: Astrophysical Journal, The
DOI: 10.1088/0004-637X/759/1/51

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