Articles | Volume 16, issue 12
https://doi.org/10.5194/bg-16-2443-2019
https://doi.org/10.5194/bg-16-2443-2019
Research article
 | 
19 Jun 2019
Research article |  | 19 Jun 2019

Organic signatures in Pleistocene cherts from Lake Magadi (Kenya) – implications for early Earth hydrothermal deposits

Manuel Reinhardt, Walter Goetz, Jan-Peter Duda, Christine Heim, Joachim Reitner, and Volker Thiel

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Cited articles

Allen, J. E., Forney, F. W., and Markovetz, A. J.: Microbial subterminal oxidation of alkanes and alk-1-enes, Lipids, 6, 448–452, https://doi.org/10.1007/BF02531227, 1971. 
Allwood, A. C., Walter, M. R., and Marshall, C. P.: Raman spectroscopy reveals thermal palaeoenvironments of c.3.5 billion-year-old organic matter, Vib. Spectrosc., 41, 190–197, https://doi.org/10.1016/j.vibspec.2006.02.006, 2006. 
Baker, B. H.: Geology of the Magadi area, Geological Survey of Kenya, 81 pp., 1958. 
Baker, B. H.: Tectonics and volcanism of the southern Kenya Rift Valley and its influence on rift sedimentation, in: Sedimentation in the African Rifts, edited by: Frostick, L. E., Renaut, R. W., Reid, I., and Tiercelin, J. J., Geol. Soc. Spec. Publ., London, UK, 45–57, 1986. 
Banta, A. B., Wei, J. H., and Welander, P. V.: A distinct pathway for tetrahymanol synthesis in bacteria, P. Natl. Acad. Sci. Usa, 112, 13478–13483, https://doi.org/10.1073/pnas.1511482112, 2015. 
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Short summary
Organic matter in Archean hydrothermal cherts may contain molecular traces of early life. Alteration processes during and after deposition, however, may have obliterated potential biosignatures. Our results from modern analog samples (Pleistocene cherts from Lake Magadi, Kenya) show that biomolecules can survive early hydrothermal destruction in the macromolecular fraction of the organic matter. A conservation of molecular biosignatures in Archean hydrothermal cherts therefore seems possible.
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