The Subsurface Geology of Río Tinto: Material Examined During a Simulated Mars Drilling Mission for the Mars Astrobiology Research and Technology Experiment (MARTE)
| Autor: | Howard Cannon, Brad Sutter, Olga Prieto-Ballesteros, Melissa Battler, John Schutt, Mary Sue Bell, Jennifer L. Heldmann, Javier Gómez-Elvira, Carol R. Stoker, Jesús Martínez-Frías |
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| Rok vydání: | 2008 |
| Předmět: |
Geologic Sediments
Geological Phenomena Technology Drilling core Remote mineralogical analysis Drill Research Borehole Mars Drilling Sampling (statistics) Río Tinto Mars Exploration Program Subsurface geology Life on Mars Iron oxides Agricultural and Biological Sciences (miscellaneous) Astrobiology Geological analysis Spain Space and Planetary Science Exobiology Space Simulation Geology |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 1557-8070 1531-1074 |
| DOI: | 10.1089/ast.2006.0107 |
| Popis: | 9 páginas, 4 figuras. The 2005 Mars Astrobiology Research and Technology Experiment (MARTE) project conducted a simulated 1-month Mars drilling mission in the Río Tinto district, Spain. Dry robotic drilling, core sampling, and biological and geological analytical technologies were collectively tested for the first time for potential use on Mars. Drilling and subsurface sampling and analytical technologies are being explored for Mars because the subsurface is the most likely place to find life on Mars. The objectives of this work are to describe drilling, sampling, and analytical procedures; present the geological analysis of core and borehole material; and examine lessons learned from the drilling simulation. Drilling occurred at an undisclosed location, causing the science team to rely only on mission data for geological and biological interpretations. Core and borehole imaging was used for micromorphological analysis of rock, targeting rock for biological analysis, and making decisions regarding the next day's drilling operations. Drilling reached 606 cm depth into poorly consolidated gossan that allowed only 35% of core recovery and contributed to borehole wall failure during drilling. Core material containing any indication of biology was sampled and analyzed in more detail for its confirmation. Despite the poorly consolidated nature of the subsurface gossan, dry drilling was able to retrieve useful core material for geological and biological analysis. Lessons learned from this drilling simulation can guide the development of dry drilling and subsurface geological and biological analytical technologies for future Mars drilling missions. |
| Databáze: | OpenAIRE |
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