Hypothesis: Origin of Life in Deep-Reaching Tectonic Faults
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The worldwide discussion on the origin of life encounters difficulties when it comes to estimate the conditions of the early earth and to define plausible environments for the development of the first complex organic molecules. Until now, the role of the earth’s crust has been more or less ignored. In our opinion, deep-reaching open, interconnected tectonic fault systems may provide possible reaction habitats ranging from nano- to centimetre and even larger dimensions for the formation of prebiotic molecules. In addition to the presence of all necessary raw materials including phosphate, as well as variable pressure and temperature conditions, we suggest that supercritical CO2 as a nonpolar solvent could have played an important role. A hypothetical model for the origin of life is proposed which will be used to design crucial experiments for the model’s verification. Because all proposed processes could still occur in tectonic faults at the present time, it may be possible to detect and analyse the formation of prebiotic molecules in order to assess the validity of the proposed hypothesis.
KeywordsOrigin Life Strike-slip faults scCO2 Prebiotic molecules
We would like to thank Gabriele Berberich from the University of Duisburg-Essen for her helpful comments in improving the manuscript, translating and refining the English and for producing the illustrations. We also owe special thanks to the editor and the two reviewers of the article for helpful comments.
- Bada JL (2004) How life began on Earth: a status report. Earth Planet Sci Lett 226:1–15Google Scholar
- Bergmann SC (1987) Lamproites and other potassium-rich igneous rocks: a review of their occurrence, mineralogy and geochemistry. In Fitton JG and Upton BGJ Alkaline igneous rocks: Geol Soc Sp Publ 30: 103–189Google Scholar
- Davies P (2003) The origin of life. The Penguin Press, LondonGoogle Scholar
- Kaszuba JP, Williams LL, Janecky DR, Hollis WK, Tsimpanogiannis IN (2006) Immiscible CO2 -H2O fluids in the shallow crust. Geochem Geophys Geosyst 7/10. doi: 10.1029/2005GC001107
- Kümpel HJ (1997) Tides in water-saturated rock. Tidal Phenomena, Lecture Notes, In Earth Sci, 66, Springer, Heidelberg, 277–292Google Scholar
- Martin W, Russel MJ (2007) On the origin of biochemistry at an alkaline hydrothermal vent. Philos Trans R Soc Lond B 367:1187–1925Google Scholar
- Matthews CN (2000) The HCN world: establishing protein-nucleic acid life. Orig Life Biosph 30:292Google Scholar
- Oskarsson N, Sigvaldason GE, Steinthorsson S (1982) A dynamic model for rift zone petrogenesis and the regional petrology of Iceland. J Petrol 23:28–74Google Scholar
- Rauchfuss H (2008) Chemical evolution and the origin of life. Springer, HeidelbergGoogle Scholar
- Schopf JW (2002) Life’s origin. University of California Press, Los AngelesGoogle Scholar