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The Opportunity Rover's Athena Science Investigation at Meridiani Planum, Mars

Squyres, S. W. ; Arvidson, R. E. ; Bell, J. F. ; Brückner, J. ; Cabrol, N. A. ; Calvin, W. ; Carr, M. H. ; Christensen, P. R. ; Clark, B. C. ; Crumpler, L. ; D. J. Des Marais ; d'Uston, C. ; Economou, T. ; Farmer, J. ; Farrand, W. ; Folkner, W. ; Golombek, M. ; Gorevan, S. ; Grant, J. A. ; Greeley, R. ; Grotzinger, J. ; Haskin, L. ; Herkenhoff, K. E. ; Hviid, S. ; Johnson, J. ; Klingelhöfer, G. ; Knoll, A. H. ; Landis, G. ; Lemmon, M. ; Li, R. ; Madsen, M. B. ; Malin, M. C. ; McLennan, S. M. ; McSween, H. Y. ; Ming, D. W. ; Moersch, J. ; Morris, R. V. ; Parker, T. ; Rice, J. W. ; Richter, L. ; Rieder, R. ; Sims, M. ; Smith, M. ; Smith, P. ; Soderblom, L. A. ; Sullivan, R. ; Wänke, H. ; Wdowiak, T. ; Wolff, M. ; Yen, A.

Science (American Association for the Advancement of Science), 2004-12, Vol.306 (5702), p.1698-1703 [Periódico revisado por pares]

Johnson Space Center: American Association for the Advancement of Science

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Título:
The Opportunity Rover's Athena Science Investigation at Meridiani Planum, Mars
Autor: Squyres, S. W. ; Arvidson, R. E. ; Bell, J. F. ; Brückner, J. ; Cabrol, N. A. ; Calvin, W. ; Carr, M. H. ; Christensen, P. R. ; Clark, B. C. ; Crumpler, L. ; D. J. Des Marais ; d'Uston, C. ; Economou, T. ; Farmer, J. ; Farrand, W. ; Folkner, W. ; Golombek, M. ; Gorevan, S. ; Grant, J. A. ; Greeley, R. ; Grotzinger, J. ; Haskin, L. ; Herkenhoff, K. E. ; Hviid, S. ; Johnson, J. ; Klingelhöfer, G. ; Knoll, A. H. ; Landis, G. ; Lemmon, M. ; Li, R. ; Madsen, M. B. ; Malin, M. C. ; McLennan, S. M. ; McSween, H. Y. ; Ming, D. W. ; Moersch, J. ; Morris, R. V. ; Parker, T. ; Rice, J. W. ; Richter, L. ; Rieder, R. ; Sims, M. ; Smith, M. ; Smith, P. ; Soderblom, L. A. ; Sullivan, R. ; Wänke, H. ; Wdowiak, T. ; Wolff, M. ; Yen, A.
Assuntos: Atmosphere ; Basaltic soils ; Discovery and exploration ; Evidence ; Evolution, Planetary ; Extraterrestrial Environment ; Ferric Compounds ; Geologic Sediments ; Hematite ; Impact craters ; Landing sites ; Lunar And Planetary Science And Exploration ; Mars ; Mars (Planet) ; Mars probes ; Mineralogy ; Minerals ; Opportunities ; Outcrops ; Research Articles and Reports ; Rocks ; Sand ; Sediments ; Silicates ; Soil composition ; Soil salts ; Soils ; Spacecraft ; Topography ; Water ; Wind
É parte de: Science (American Association for the Advancement of Science), 2004-12, Vol.306 (5702), p.1698-1703
Notas: Johnson Space Center
JSC
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Descrição: The Mars Exploration Rover Opportunity has investigated the landing site in Eagle crater and the nearby plains within Meridiani Planum. The soils consist of fine-grained basaltic sand and a surface lag of hematite-rich spherules, spherule fragments, and other granules. Wind ripples are common. Underlying the thin soil layer, and exposed within small impact craters and troughs, are flat-lying sedimentary rocks. These rocks are finely laminated, are rich in sulfur, and contain abundant sulfate salts. Small-scale cross-lamination in some locations provides evidence for deposition in flowing liquid water. We interpret the rocks to be a mixture of chemical and siliciclastic sediments formed by episodic inundation by shallow surface water, followed by evaporation, exposure, and desiccation. Hematite-rich spherules are embedded in the rock and eroding from them. We interpret these spherules to be concretions formed by postdepositional diagenesis, again involving liquid water.
Editor: Johnson Space Center: American Association for the Advancement of Science
Idioma: Inglês

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The Opportunity Rover's Athena Science Investigation at Meridiani Planum, Mars

Johnson Space Center: American Association for the Advancement of Science

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