Campbell, K.A. and the iMOST-Team und Rettberg, Petra (2018) SEEKING SIGNS OF LIFE ON MARS: A STRATEGY FOR SELECTING AND ANALYZING RETURNED SAMPLES FROM HYDROTHERMAL DEPOSITS. 2nd International Mars Sample Return Conference, 2018-04-25 - 2018-04-27, Berlin, Germany.
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Kurzfassung
Highly promising locales for biosignature prospecting on Mars are ancient hydrothermal deposits, formed by the interaction of surface water with heat from volcanism or impacts [1-3]. On Earth, they occur throughout the geological record (to at least ~3.5 Ga), preserving robust mineralogical, textural and compositional evidence of thermophilic microbial activity [e.g., 3-5]. Hydrothermal systems were likely present early in Mars’ history [6], including at two of the three finalist candidate landing sites for M2020, Columbia Hills [7-9] and NE Syrtis Major [10 & refs. therein]. Hydrothermal environments on Earth’s surface are varied, constituting subaerial hot spring aprons, mounds and fumaroles; shallow to deep-sea hydrothermal vents (black and white smokers); and vent mounds and hot-spring discharges in lacustrine and fluvial settings. Biological information can be preserved by rapid, spring-sourced mineral precipitation [1,2,9], but also could be altered or destroyed by postdepositional events [5,11,12]. Thus, field observations need to be followed by detailed laboratory analysis to verify potential biosignatures.
elib-URL des Eintrags: | https://elib.dlr.de/120715/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||
Titel: | SEEKING SIGNS OF LIFE ON MARS: A STRATEGY FOR SELECTING AND ANALYZING RETURNED SAMPLES FROM HYDROTHERMAL DEPOSITS. | ||||||||||||
Autoren: |
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Datum: | 25 April 2018 | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Nein | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | Mars, Mars Sample Return campaign, iMOST study | ||||||||||||
Veranstaltungstitel: | 2nd International Mars Sample Return Conference | ||||||||||||
Veranstaltungsort: | Berlin, Germany | ||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||
Veranstaltungsbeginn: | 25 April 2018 | ||||||||||||
Veranstaltungsende: | 27 April 2018 | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||
HGF - Programmthema: | Forschung unter Weltraumbedingungen | ||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||
DLR - Forschungsgebiet: | R FR - Forschung unter Weltraumbedingungen | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Vorhaben Strahlenbiologie (alt) | ||||||||||||
Standort: | Köln-Porz | ||||||||||||
Institute & Einrichtungen: | Institut für Luft- und Raumfahrtmedizin > Strahlenbiologie | ||||||||||||
Hinterlegt von: | Kopp, Kerstin | ||||||||||||
Hinterlegt am: | 29 Jun 2018 10:18 | ||||||||||||
Letzte Änderung: | 24 Apr 2024 20:24 |
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