ArticleAstrobiology2015
Multiple Cosmic Sources for Meteorite Macromolecules?
Article in Astrobiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed.
- Diverse organic molecules on Mars revealed by the first SAM TMAH experiment.Nature communications · 2026Article
- Carbon and oxygen isotope evidence for a protoplanetary disk origin of organic solids in meteorites.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Synthesis ofScience advances · 2021Article
- Photoacoustic and photothermal methods in spectroscopy and characterization of soils and soil organic matter.Photoacoustics · 2020Article
- The nature, origin and modification of insoluble organic matter in chondrites, the possibly interstellar source of Earth's C and N.Chemie der Erde : Beitrage zur chemischen Mineralogie, Petrographie und Geologie · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The major organic component in carbonaceous meteorites is an organic macromolecular material. The Murchison macromolecular material comprises aromatic units connected by aliphatic and heteroatom-containing linkages or occluded within the wider structure. The macromolecular material source environment remains elusive. Traditionally, attempts to determine source have strived to identify a single environment. Here, we apply a highly efficient hydrogenolysis method to liberate units from the macromolecular material and use mass spectrometric techniques to determine their chemical structures and individual stable carbon isotope ratios. We confirm that the macromolecular material comprises a labile fraction with small aromatic units enriched in (13)C and a refractory fraction made up of large aromatic units depleted in (13)C. Our findings suggest that the macromolecular material may be derived from at least two separate environments. Compound-specific carbon isotope trends for aromatic compounds with carbon number may reflect mixing of the two sources. The story of the quantitatively dominant macromolecular material in meteorites appears to be made up of more than one chapter.
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Registered trials
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