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Evidence for Extraterrestrial Amino-acids and Hydrocarbons in the Murchison Meteorite

KVENVOLDEN, KEITH, LAWLESS, JAMES, PERING, KATHERINE, PETERSON, ETTA, FLORES, JOSE, PONNAMPERUMA, CYRIL, KAPLAN, I. R., MOORE, CARLETON·1970·Nature

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Citations

Cites

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Research works printed but not linked: 37

  1. Oparin, A. I., Proischogdenie Zhizni. (Moscovsky Robotchii, Moscow, 1924).
  2. The Origin of Life on Earth (edit. by Oparin, A. I.) (Pergamon, Oxford, 1959).
  3. The Origins of Prebiological Systems and of Their Molecular Matrices (edit. by Fox, S. W.) (Academic Press, 1965).
  4. Proc. Third Intern. Conf. on the Origin of Life, Pont-a-Mousson, France (1970) (edit. by Buvet, R., and Ponnamperuma, C.) (North-Holland, Amsterdam, in the press).
  5. Ponnamperuma, C., and Gabel, N. W., Space Life Sci., 1, 64 (1968).
  6. Lemmon, R. M., Chem. Rev., 70, 95 (1970). · DOI
  7. Cheung, A. C., Rank, D. M., Townes, C. H., Thornton, D. D., and Welch, W. J., Nature, 221, 626 (1969). · doi:10.1038/221626a0
  8. Snyder, L. E., and Buhl, D., Astrophys. J., 155, L65 (1969). · doi:10.1086/180304
  9. Cheung, A. C., Rank, D. M., Townes, C. H., Thornton, D. D., and Welch, W. J., Phys. Rev. Lett., 21, 1701 (1968). · doi:10.1103/physrevlett.21.1701
  10. Snyder, L. E., Buhl, D., Zuckerman, B., and Palmer, P., Phys. Rev. Lett., 22, 679 (1969). · DOI · Paper page
  11. Wilson, R. W., Jefferts, K. B., and Penzias, A. A., Astrophys. J., 161, L43 (1970). · DOI
  12. Johnson, F. M., Proc. Regional Symp. on Planetary Geology and Geophysics (Amer. Astron. Soc. and New England Academic Community, 1967).
  13. Donn, B., Astrophys. J., 152, L129 (1968). · doi:10.1086/180196
  14. Donn, B., in Exobiology (edit. by Ponnamperuma, C.) (North-Holland, Amsterdam, 1970).
  15. Lunar Science Conference, Science , 167, 751 (1970). · DOI
  16. Chang, S., Kvenvolden, K., Lawless, J., Ponnamperuma, C., and Kaplan, I. R. (in the press).
  17. Hayes, J. M., Geochim. Cosmochim. Acta, 31, 1395 (1967). · DOI · Paper page
  18. Nagy, B., Geol. for Förhandlingar (Stockholm), 88, 235 (1966). · DOI
  19. Studier, M. H., Hayatsu, R., and Anders, E., Science, 149, 1455 (1965). · DOI
  20. Berzelius, J. J., Ann. Phys. Chem., 33, 113 (1834). · DOI
  21. Wöhler, M. F., and Hörnes, M., Sitzber. Akad. Wiss. Wien, Math. naturw. Kl., 34, 7 (1859).
  22. Berthelot, M., CR Acad. Sci., 67, 849 (1868).
  23. Hamilton, P. B., Nature, 205, 284 (1965). · DOI
  24. Oro, J., and Skewes, H. B., Nature, 207, 1042 (1965). · DOI
  25. Rep. Center for Shortlived Phenomena, No. 779 (Smithsonian Inst., Cambridge, Mass., 1969).
  26. Gil-Av, E., Charles, R., and Fischer, G., J. Chromatog., 17, 408 (1965). · doi:10.1016/s0021-9673(00)99888-1
  27. Pollock, G. E., Oyama, V. I., and Johnson, R. O., J. Gas Chromatog., 3, 174 (1965). · DOI
  28. Pollock, G. E., and Oyama, V. I., J. Gas Chromatog., 4, 126 (1966). · doi:10.1093/chromsci/4.4.126
  29. Kvenvolden, K. A., Peterson, E., and Brown, F. S., Science, 169, 1079 (1970). · DOI
  30. Gelpi, E., Koenig, W. A., Gibert, J., and Oro, J., J. Chromatog. Sci., 7, 604 (1969). · DOI
  31. Kaplan, I. R., Degens, E. T., and Reuter, J. H., Geochim. Cosmochim. Acta, 27, 805 (1963). · DOI
  32. Miller, S. L., and Urey, H. C., Science, 130, 245 (1959). · DOI · Paper page
  33. Murphy, M. T. J., in Organic Geochemistry, Methods and Results (edit. by Eglinton and Murphy), 75 (Springer-Verlag, 1969).
  34. Ponnamperuma, C., Woeller, F., Flores, J., Romiez, M., and Allen, W. V., ACS Adv. Chem., 80, 280 (1969). · DOI
  35. Smith, J. W., and Kaplan, I. R., Science, 167, 1367 (1970). · DOI
  36. Degens, E. T., Geochemistry of Sediments (Prentice-Hall, Englewood Cliffs, 1965). · DOI
  37. Silverman, S. R., in Isotopic and Cosmic Chemistry (edit. by Craig, H., Miller, S. L., and Warserburg, G. J.) (North-Holland, Amsterdam, 1964).

Cited by

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Metadata

Authors
KVENVOLDEN, K., LAWLESS, J., PERING, K., PETERSON, E., FLORES, J., PONNAMPERUMA, C., KAPLAN, I. R., & MOORE, C.
Venue
Nature
Published
1970-12
Volume
228
Issue
5275
Pages
923-926
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2017387061
Cited by
867
References
0
FWCI
25.86
Type
journal article
Language
en
Open access
closed
Licence
www.springer.com/tdm (tdm)

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This page
CoChat. (2026). Citation check: Evidence for Extraterrestrial Amino-acids and Hydrocarbons in the Murchison Meteorite. https://app.cochat.ai/papers/10.1038/228923a0
The paper
KVENVOLDEN, K., LAWLESS, J., PERING, K., PETERSON, E., FLORES, J., PONNAMPERUMA, C., KAPLAN, I. R., & MOORE, C. (1970). Evidence for Extraterrestrial Amino-acids and Hydrocarbons in the Murchison Meteorite. Nature. https://doi.org/10.1038/228923a0

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.