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| P13: | Organics in Meteorites and Dust Particles: Composition, Distribution, Formation and Isotopic Anomalies |
| Sponsor: |
Planetary Sciences
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| CoSponsor: |
Biogeosciences |
| Convener: |
Max Bernstein NASA Office 3C25 300 E street, SW Washington, DC, USA Max.Bernstein@nasa.gov George Cody Carnegie Institution of Washington USA gcody@ciw.edu |
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5200 2129 6240 6213 6015 .
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| Description: | Recent analyses of meteoritic matter, interplanetary dust particles, and samples returned by the Stardust Mission indicate that the relationship between structure and isotopic anomalies of the organic matter in meteorites is more complicated than had been previously realized. Conflicting extreme theories portray meteoritic carbon compounds as either captured interstellar molecules, as products of high-temperature nebular processes, or determined by reactions on minerals in liquid water in the parent asteroid or comet regardless of the pedigree of the starting materials. For this symposium we seek reports of measurements of the molecular and isotopic composition of asteroidal cometary matter, including distribution and regiochemistry of functional groups and isotopic enrichments, both of extractable and insoluble organic matter, and models and experiments that may shed light on such measurements, or the processes which may have created them. |