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dc.contributor.authorWierzchos, Jacek-
dc.contributor.authorRíos, Asunción de los-
dc.contributor.authorAscaso, Carmen-
dc.identifier.citationProceedings of the Third European Workshop on Exo-Astrobiology, 18 - 20 November 2003, Madrid, Spain. Ed.: R. A. Harris & L. Ouwehand. ESA SP-545, Noordwijk, Netherlands: ESA Publications Divisiones_ES
dc.description3 páginas, 4 figurases_ES
dc.description.abstractMicrobial life in the hars conditions of Antarctica's cold desert may be considered an analogue of potential life on early Mars. The microbial ecology of these lithobiontic, extremophile microorganism communities could provide clues to the challenging question of how life (if ever oresent) became extinct on Mars. Application of the SEM-BSE plus EDS technique has allowed us to demonstrate the presence of microbial fossils and biomarkers within Antarctic sandstone rocks collected from Ross Desert for the first time. There is an obvious need for extensive further work on live, dead, mummified and mineralized lithobiontic Antarctic microorganisms. The in situ examination of the interior of Antarctic rocks might represent the best option available to improve our knowledge on these extreme cold and dry microbial habitats and it is foreseen that this type of work will have applications in future astrobiological investigations performed on geological material obtained from Mars.es_ES
dc.description.sponsorshipThanks are due to Prof. E.I. Friedmann for supplying the Antarctic sandstone rock samples from Mount Fleming, to A. Burton for the English revision. This study was funded by grant number ANT99-0680-C02-02, REN2002-03542 and REN2003-07366-CO2-O2 of the Plan Nacional I+D, and BOS2000-1121 and BOS2003-02418 from the PGC.es_ES
dc.publisherEuropean Space Agencyes_ES
dc.relation.ispartofseriesESA SPes_ES
dc.relation.ispartofseries545: 67-69(2004)es_ES
dc.relation.isversionofPublisher's versiones_ES
dc.subjectMicrobial ecologyes_ES
dc.subjectEDS techniquees_ES
dc.subjectRoss Desertes_ES
dc.titleDetecting life traces in extreme cold and dry conditions on earth: possible analogues of life on Marses_ES
dc.description.peerreviewedPeer reviewedes_ES
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