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

Autor: Roberto Barbieri, Barbara Cavalazzi
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Challenges, Vol 5, Iss 2, Pp 430-443 (2014)
Druh dokumentu: article
ISSN: 2078-1547
DOI: 10.3390/challe5020430
Popis: 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.
Databáze: Directory of Open Access Journals