Search for life on Mars: evaluation of techniques.
Adv Space Res
; 15(3): 193-7, 1995 Mar.
Article
em En
| MEDLINE
| ID: mdl-11539224
ABSTRACT
An important question for exobiology is, did life evolve on Mars? To answer this question, experiments must be conducted on the martian surface. Given current mission constraints on mass, power, and volume, these experiments can only be performed using proposed analytical techniques such as electron microscopy, X-ray fluorescence, X-ray diffraction, alpha-proton backscatter, gamma-ray spectrometry, differential thermal analysis, differential scanning calorimetry, pyrolysis gas chromatography, mass spectrometry, and specific element detectors. Using prepared test samples consisting of 1% organic matter (bovine serum albumin) in palagonite and a mixture of palagonite, clays, iron oxides, and evaporites, it was determined that a combination of X-ray diffraction and differential thermal analysis coupled with gas chromatography provides the best insight into the chemistry, mineralogy, and geological history of the samples.
Palavras-chave
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Técnicas de Química Analítica
/
Marte
/
Exobiologia
/
Sedimentos Geológicos
Tipo de estudo:
Diagnostic_studies
/
Evaluation_studies
Idioma:
En
Revista:
Adv Space Res
Assunto da revista:
MEDICINA AEROESPACIAL
Ano de publicação:
1995
Tipo de documento:
Article
País de afiliação:
Estados Unidos