DOI: 10.1126/science.252.5002.109. A New Mechanism for the Formation of Meteoritic Kerogen-Like Material

A New Mechanism for the Formation of Meteoritic Kerogen-Like Material

10.1126/science.252.5002.109

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

The carbon in ancient carbonaceous chondritic meteorites is mainly in a hydrocarbon composite similar to terrestrial kerogen, a cross-linked structure of aliphatic and aromatic hydrocarbons. Until recently, the composite has been commonly thought to have been produced in the early solar nebula by a Fischer-Tropsch-type process, involving the catalytic synthesis of hydrocarbons from carbon monoxide and hydrogen on grain surfaces. Instead, the aromatic hydrocarbons may form in gas-phase pyrolysis of simple aliphatics like acetylene and methane by a mechanism developed recently to explain formation of soot in combustion and of aromatic molecules in circumstellar envelopes. Nonequilibrium chemical kinetic calculations indicate that this mechanism can produce meteoritic aromatics if the initial concentration of simple hydrocarbons in the solar nebula was sufficiently but not unreasonably high.

Bibliography

Morgan, W. A., Feigelson, E. D., Wang, H., & Frenklach, M. (1991). A New Mechanism for the Formation of Meteoritic Kerogen-Like Material. Science, 252(5002), 109â112.

Authors 4

Windsor A. Morgan (first)
Eric D. Feigelson (additional)
Hai Wang (additional)
Michael Frenklach (additional)

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Dates

Type	When
Created	18 years, 10 months ago (Oct. 5, 2006, 6:10 p.m.)
Deposited	1 year, 7 months ago (Jan. 12, 2024, 11:54 a.m.)
Indexed	2 weeks, 6 days ago (Aug. 5, 2025, 9 a.m.)
Issued	34 years, 4 months ago (April 5, 1991)
Published	34 years, 4 months ago (April 5, 1991)
Published Print	34 years, 4 months ago (April 5, 1991)

Funders 0

None

BibTeX

@article{Morgan_1991, title={A New Mechanism for the Formation of Meteoritic Kerogen-Like Material}, volume={252}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.252.5002.109}, DOI={10.1126/science.252.5002.109}, number={5002}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Morgan, Windsor A. and Feigelson, Eric D. and Wang, Hai and Frenklach, Michael}, year={1991}, month=apr, pages={109–112} }

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