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How Do Modern Extreme Hydrothermal Environments Inform the Identification of Martian Habitability? The Case of the El Tatio Geyser Field

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  • Roberto Barbieri

    (Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Via Zamboni 67, 40126 Bologna, Italy)

  • Barbara Cavalazzi

    (Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Via Zamboni 67, 40126 Bologna, Italy)

Abstract

Despite the success in knowledge gained by the Mars missions in the last two decades, the search for traces of life on Mars is still in progress. The reconstruction of (paleo-) environments on Mars have seen a dramatic increase, in particular with regard to the potentially habitable conditions, and it is now possible to recognize a significant role to subaerial hydrothermal processes. For this reason, and because the conditions of the primordial Earth—when these extreme environments had to be common—probably resembled Mars during its most suitable time to host life, research on terrestrial extreme hydrothermal habitats may assist in understanding how to recognize life on Mars. A number of geological and environmental reasons, and logistics opportunities, make the geothermal field of El Tatio, in the Chilean Andes an ideal location to study.

Suggested Citation

  • Roberto Barbieri & Barbara Cavalazzi, 2014. "How Do Modern Extreme Hydrothermal Environments Inform the Identification of Martian Habitability? The Case of the El Tatio Geyser Field," Challenges, MDPI, vol. 5(2), pages 1-14, November.
    • Handle: RePEc:gam:jchals:v:5:y:2014:i:2:p:430-443:d:42297
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    References listed on IDEAS

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    2. J. L. Burch & J. Goldstein & W. S. Lewis & D. T. Young & A. J. Coates & M. K. Dougherty & N. André, 2007. "Tethys and Dione as sources of outward-flowing plasma in Saturn’s magnetosphere," Nature, Nature, vol. 447(7146), pages 833-835, June.
    3. Oleg Abramov & Stephen J. Mojzsis, 2009. "Microbial habitability of the Hadean Earth during the late heavy bombardment," Nature, Nature, vol. 459(7245), pages 419-422, May.
    4. Hugh H. Kieffer & Philip R. Christensen & Timothy N. Titus, 2006. "CO2 jets formed by sublimation beneath translucent slab ice in Mars' seasonal south polar ice cap," Nature, Nature, vol. 442(7104), pages 793-796, August.
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