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Elemental Abundance Distributions in Basalt Clays and Meteorites: Is It a Biosignature?Volcanic glass altered by microorganisms exhibits distinctive textures differing significantly from abiotic alteration [1-4]. We have previously presented morphological evidence of bioweathering in sub-oceanic basalt glass [5] and olivine [6], and noted similar alterations in Nakhla [7]. We have also introduced an autonomous Bayesian probabilistic classification methodology to identify biotic and abiotic alteration in sub-oceanic basalts using elemental abundance data [8]. We now present data from multiple sub-oceanic sites addressing the more general question of utilizing elemental abundance distribution in clays as a valid biosignature for the exploration of putative clay alteration products in meteorites.
Document ID
20050167771
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Fisk, M. R.
(Oregon State Univ. Corvallis, OR, United States)
Storrie-Lombardi, M. C.
(Kinohi Inst. Pasadena, CA, United States)
Joseph, J.
(Oregon State Univ. Corvallis, OR, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2005
Publication Information
Publication: Lunar and Planetary Science XXXVI, Part 6
Subject Category
Geophysics
Distribution Limits
Public
Copyright
Public Use Permitted.
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