Locating potential biosignatures on Europa from surface geology observations

Patricio H. Figueredo, Ronald Greeley, Susanne Neuer, Louis Irwin, Dirk Schulze-Makuch

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We evaluated the astrobiological potential of the major classes of geologic units on Europa with respect to possible biosignatures preservation on the basis of surface geology observations. These observations are independent of any formational model and therefore provide an objective, though preliminary, evaluation. The assessment criteria include high mobility of material, surface concentration of non-ice components, relative youth, textural roughness, and environmental stability. Our review determined that, as feature classes, low-albedo smooth plains, smooth bands, and chaos hold the highest potential, primarily because of their relative young age, the emplacement of low-viscosity material, and indications of material exchange with the subsurface. Some lineaments and impact craters may be promising sites for closer study despite the comparatively lower astrobiological potential of their classes. This assessment will be expanded by multidisciplinary examination of the potential for habitability of specific features.

Original languageEnglish (US)
Pages (from-to)851-861
Number of pages11
JournalAstrobiology
Volume3
Issue number4
DOIs
StatePublished - Dec 1 2003

Fingerprint

Geology
Europa
geology
Viscosity
chaotic dynamics
roughness
habitability
lineament
crater
albedo
emplacement
viscosity
plains
craters
chaos
indication
examination
material
evaluation

Keywords

  • Astrobiology
  • Biosignature
  • Diapirism
  • Europa
  • Habitat
  • Tidal Stresses

ASJC Scopus subject areas

  • Space and Planetary Science
  • Agricultural and Biological Sciences (miscellaneous)

Cite this

Locating potential biosignatures on Europa from surface geology observations. / Figueredo, Patricio H.; Greeley, Ronald; Neuer, Susanne; Irwin, Louis; Schulze-Makuch, Dirk.

In: Astrobiology, Vol. 3, No. 4, 01.12.2003, p. 851-861.

Research output: Contribution to journalArticle

Figueredo, PH, Greeley, R, Neuer, S, Irwin, L & Schulze-Makuch, D 2003, 'Locating potential biosignatures on Europa from surface geology observations', Astrobiology, vol. 3, no. 4, pp. 851-861. https://doi.org/10.1089/153110703322736132
Figueredo, Patricio H. ; Greeley, Ronald ; Neuer, Susanne ; Irwin, Louis ; Schulze-Makuch, Dirk. / Locating potential biosignatures on Europa from surface geology observations. In: Astrobiology. 2003 ; Vol. 3, No. 4. pp. 851-861.
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