Comment on "Determining chondritic impactor size from the marine osmium isotope record".
editorial · Level V
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- Record sourced from PubMed, PMID 18755958.
- Also identified by DOI 10.1126/science.1159174.
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Abstract
Paquay et al. (Reports, 11 April 2008, p. 214) reported that osmium isotope ratios in marine sediments can be used to determine the size of a chondritic impactor. Their assumptions on the fate of an impacting projectile may need to be reassessed, however, because only a small, unpredictable fraction of the impactor ends up dissolved in seawater.