Extraterrestrial nucleobases in the Murchison meteorite

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dc.creatorMartins, Zita
dc.creatorBotta, Oliver
dc.creatorFogel, Marilyn L.
dc.creatorSephton, Mark A.
dc.creatorGlavin, Daniel P.
dc.creatorWatson, Jonathan S.
dc.creatorDworkin, Jason P.
dc.creatorSchwartz, Alan W.
dc.creatorEhrenfreund, Pascale
dc.date2008-06-13
dc.date.accessioned2026-07-07T09:44:30Z
dc.date.available2026-07-07T09:44:30Z
dc.descriptionCarbon-rich meteorites, carbonaceous chondrites, contain many biologically relevant organic molecules and delivered prebiotic material to the young Earth. We present compound-specific carbon isotope data indicating that measured purine and pyrimidine compounds are indigenous components of the Murchison meteorite. Carbon isotope ratios for uracil and xanthine of delta13C=+44.5per mil and +37.7per mil, respectively, indicate a non-terrestrial origin for these compounds. These new results demonstrate that organic compounds, which are components of the genetic code in modern biochemistry, were already present in the early solar system and may have played a key role in life's origin.
dc.description31 pages, 4 figures, 3 tables
dc.identifierhttps://arxiv.org/abs/0806.2286
dc.identifierhttp://arxiv.org/abs/0806.2286
dc.identifierEarth and Planetary Science Letters 270, 130-136. 15 June 2008
dc.identifierdoi:10.1016/j.epsl.2008.03.026
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/162896
dc.subjectSpace Physics
dc.subjectBiological Physics
dc.titleExtraterrestrial nucleobases in the Murchison meteorite
dc.typetext

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