Overview of the Opportunity Mars Exploration Rover Mission to Meridiani Planum: Eagle Crater to Purgatory Ripple

S. W. Squyres, R. E. Arvidson, D. Bollen, James Bell, J. Brückner, N. A. Cabrol, W. M. Calvin, M. H. Carr, Philip Christensen, B. C. Clark, L. Crumpler, D. J. Des Marais, C. d'Uston, T. Economou, Jack Farmer, W. H. Farrand, W. Folkner, R. Gellert, Timothy D. Glotch, Matthew P. GolombekS. Gorevan, J. A. Grant, R. Greeley, J. Grotzinger, K. E. Herkenhoff, S. Hviid, Jeffrey R. Johnson, G. Klingelhöfer, A. H. Knoll, G. Landis, Mark T. Lemmon, R. Li, M. B. Madsen, M. C. Malin, S. M. McLennan, H. Y. McSween, D. W. Ming, J. Moersch, R. V. Morris, T. Parker, Jr W. Rice, L. Richter, R. Rieder, C. Schröder, M. Sims, M. Smith, P. Smith, L. A. Soderblom, R. J. Sullivan, N. J. Tosca, H. Wänke, T. Wdowiak, Michael J. Wolff, Albert S. Yen

Research output: Contribution to journalArticle

117 Citations (Scopus)

Abstract

The Mars Exploration Rover Opportunity touched down at Meridiani Planum in January 2004 and since then has been conducting observations with the Athena science payload. The rover has traversed more than 5 km, carrying out the first outcrop-scale investigation of sedimentary rocks on Mars. The rocks of Meridiani Planum are sandstones formed by eolian and aqueous reworking of sand grains that are composed of mixed fine-grained siliciclastics and sulfates. The siliciclastic fraction was produced by chemical alteration of a precursor basalt. The sulfates are dominantly Mg-sulfates and also include Ca-sulfates and jarosite. The stratigraphic section observed to date is dominated by eolian bedforms, with subaqueous current ripples exposed near the top of the section. After deposition, interaction with groundwater produced a range of diagenetic features, notably the hematite-rich concretions known as "blueberries." The bedrock at Meridiani is highly friable and has undergone substantial erosion by wind-transported basaltic sand. This sand, along with concretions and concretion fragments eroded from the rock, makes up a soil cover that thinly and discontinuously buries the bedrock. The soil surface exhibits both ancient and active wind ripples that record past and present wind directions. Loose rocks on the soil surface are rare and include both impact ejecta and meteorites. While Opportunity's results show that liquid water was once present at Meridiani Planum below and occasionally at the surface, the environmental conditions recorded were dominantly arid, acidic, and oxidizing and would have posed some significant challenges to the origin of life.

Original languageEnglish (US)
Article numberE12S12
JournalJournal of Geophysical Research E: Planets
Volume111
Issue number12
DOIs
StatePublished - Dec 20 2006

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Mars exploration
Temazepam
ripple
ripples
craters
Sulfates
crater
Mars
concretion
sulfates
sulfate
sands
soils
Sand
Rocks
bedrock
rocks
Soils
sand
soil surface

ASJC Scopus subject areas

  • Oceanography
  • Astronomy and Astrophysics
  • Atmospheric Science
  • Space and Planetary Science
  • Earth and Planetary Sciences (miscellaneous)
  • Geophysics
  • Geochemistry and Petrology

Cite this

Overview of the Opportunity Mars Exploration Rover Mission to Meridiani Planum : Eagle Crater to Purgatory Ripple. / Squyres, S. W.; Arvidson, R. E.; Bollen, D.; Bell, James; Brückner, J.; Cabrol, N. A.; Calvin, W. M.; Carr, M. H.; Christensen, Philip; Clark, B. C.; Crumpler, L.; Des Marais, D. J.; d'Uston, C.; Economou, T.; Farmer, Jack; Farrand, W. H.; Folkner, W.; Gellert, R.; Glotch, Timothy D.; Golombek, Matthew P.; Gorevan, S.; Grant, J. A.; Greeley, R.; Grotzinger, J.; Herkenhoff, K. E.; Hviid, S.; Johnson, Jeffrey R.; Klingelhöfer, G.; Knoll, A. H.; Landis, G.; Lemmon, Mark T.; 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, Jr W.; Richter, L.; Rieder, R.; Schröder, C.; Sims, M.; Smith, M.; Smith, P.; Soderblom, L. A.; Sullivan, R. J.; Tosca, N. J.; Wänke, H.; Wdowiak, T.; Wolff, Michael J.; Yen, Albert S.

In: Journal of Geophysical Research E: Planets, Vol. 111, No. 12, E12S12, 20.12.2006.

Research output: Contribution to journalArticle

Squyres, SW, Arvidson, RE, Bollen, D, Bell, J, Brückner, J, Cabrol, NA, Calvin, WM, Carr, MH, Christensen, P, Clark, BC, Crumpler, L, Des Marais, DJ, d'Uston, C, Economou, T, Farmer, J, Farrand, WH, Folkner, W, Gellert, R, Glotch, TD, Golombek, MP, Gorevan, S, Grant, JA, Greeley, R, Grotzinger, J, Herkenhoff, KE, Hviid, S, Johnson, JR, Klingelhöfer, G, Knoll, AH, Landis, G, Lemmon, MT, Li, R, Madsen, MB, Malin, MC, McLennan, SM, McSween, HY, Ming, DW, Moersch, J, Morris, RV, Parker, T, Rice, JW, Richter, L, Rieder, R, Schröder, C, Sims, M, Smith, M, Smith, P, Soderblom, LA, Sullivan, RJ, Tosca, NJ, Wänke, H, Wdowiak, T, Wolff, MJ & Yen, AS 2006, 'Overview of the Opportunity Mars Exploration Rover Mission to Meridiani Planum: Eagle Crater to Purgatory Ripple', Journal of Geophysical Research E: Planets, vol. 111, no. 12, E12S12. https://doi.org/10.1029/2006JE002771
Squyres, S. W. ; Arvidson, R. E. ; Bollen, D. ; Bell, James ; Brückner, J. ; Cabrol, N. A. ; Calvin, W. M. ; Carr, M. H. ; Christensen, Philip ; Clark, B. C. ; Crumpler, L. ; Des Marais, D. J. ; d'Uston, C. ; Economou, T. ; Farmer, Jack ; Farrand, W. H. ; Folkner, W. ; Gellert, R. ; Glotch, Timothy D. ; Golombek, Matthew P. ; Gorevan, S. ; Grant, J. A. ; Greeley, R. ; Grotzinger, J. ; Herkenhoff, K. E. ; Hviid, S. ; Johnson, Jeffrey R. ; Klingelhöfer, G. ; Knoll, A. H. ; Landis, G. ; Lemmon, Mark T. ; 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, Jr W. ; Richter, L. ; Rieder, R. ; Schröder, C. ; Sims, M. ; Smith, M. ; Smith, P. ; Soderblom, L. A. ; Sullivan, R. J. ; Tosca, N. J. ; Wänke, H. ; Wdowiak, T. ; Wolff, Michael J. ; Yen, Albert S. / Overview of the Opportunity Mars Exploration Rover Mission to Meridiani Planum : Eagle Crater to Purgatory Ripple. In: Journal of Geophysical Research E: Planets. 2006 ; Vol. 111, No. 12.
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TY - JOUR

T1 - Overview of the Opportunity Mars Exploration Rover Mission to Meridiani Planum

T2 - Eagle Crater to Purgatory Ripple

AU - Squyres, S. W.

AU - Arvidson, R. E.

AU - Bollen, D.

AU - Bell, James

AU - Brückner, J.

AU - Cabrol, N. A.

AU - Calvin, W. M.

AU - Carr, M. H.

AU - Christensen, Philip

AU - Clark, B. C.

AU - Crumpler, L.

AU - Des Marais, D. J.

AU - d'Uston, C.

AU - Economou, T.

AU - Farmer, Jack

AU - Farrand, W. H.

AU - Folkner, W.

AU - Gellert, R.

AU - Glotch, Timothy D.

AU - Golombek, Matthew P.

AU - Gorevan, S.

AU - Grant, J. A.

AU - Greeley, R.

AU - Grotzinger, J.

AU - Herkenhoff, K. E.

AU - Hviid, S.

AU - Johnson, Jeffrey R.

AU - Klingelhöfer, G.

AU - Knoll, A. H.

AU - Landis, G.

AU - Lemmon, Mark T.

AU - Li, R.

AU - Madsen, M. B.

AU - Malin, M. C.

AU - McLennan, S. M.

AU - McSween, H. Y.

AU - Ming, D. W.

AU - Moersch, J.

AU - Morris, R. V.

AU - Parker, T.

AU - Rice, Jr W.

AU - Richter, L.

AU - Rieder, R.

AU - Schröder, C.

AU - Sims, M.

AU - Smith, M.

AU - Smith, P.

AU - Soderblom, L. A.

AU - Sullivan, R. J.

AU - Tosca, N. J.

AU - Wänke, H.

AU - Wdowiak, T.

AU - Wolff, Michael J.

AU - Yen, Albert S.

PY - 2006/12/20

Y1 - 2006/12/20

N2 - The Mars Exploration Rover Opportunity touched down at Meridiani Planum in January 2004 and since then has been conducting observations with the Athena science payload. The rover has traversed more than 5 km, carrying out the first outcrop-scale investigation of sedimentary rocks on Mars. The rocks of Meridiani Planum are sandstones formed by eolian and aqueous reworking of sand grains that are composed of mixed fine-grained siliciclastics and sulfates. The siliciclastic fraction was produced by chemical alteration of a precursor basalt. The sulfates are dominantly Mg-sulfates and also include Ca-sulfates and jarosite. The stratigraphic section observed to date is dominated by eolian bedforms, with subaqueous current ripples exposed near the top of the section. After deposition, interaction with groundwater produced a range of diagenetic features, notably the hematite-rich concretions known as "blueberries." The bedrock at Meridiani is highly friable and has undergone substantial erosion by wind-transported basaltic sand. This sand, along with concretions and concretion fragments eroded from the rock, makes up a soil cover that thinly and discontinuously buries the bedrock. The soil surface exhibits both ancient and active wind ripples that record past and present wind directions. Loose rocks on the soil surface are rare and include both impact ejecta and meteorites. While Opportunity's results show that liquid water was once present at Meridiani Planum below and occasionally at the surface, the environmental conditions recorded were dominantly arid, acidic, and oxidizing and would have posed some significant challenges to the origin of life.

AB - The Mars Exploration Rover Opportunity touched down at Meridiani Planum in January 2004 and since then has been conducting observations with the Athena science payload. The rover has traversed more than 5 km, carrying out the first outcrop-scale investigation of sedimentary rocks on Mars. The rocks of Meridiani Planum are sandstones formed by eolian and aqueous reworking of sand grains that are composed of mixed fine-grained siliciclastics and sulfates. The siliciclastic fraction was produced by chemical alteration of a precursor basalt. The sulfates are dominantly Mg-sulfates and also include Ca-sulfates and jarosite. The stratigraphic section observed to date is dominated by eolian bedforms, with subaqueous current ripples exposed near the top of the section. After deposition, interaction with groundwater produced a range of diagenetic features, notably the hematite-rich concretions known as "blueberries." The bedrock at Meridiani is highly friable and has undergone substantial erosion by wind-transported basaltic sand. This sand, along with concretions and concretion fragments eroded from the rock, makes up a soil cover that thinly and discontinuously buries the bedrock. The soil surface exhibits both ancient and active wind ripples that record past and present wind directions. Loose rocks on the soil surface are rare and include both impact ejecta and meteorites. While Opportunity's results show that liquid water was once present at Meridiani Planum below and occasionally at the surface, the environmental conditions recorded were dominantly arid, acidic, and oxidizing and would have posed some significant challenges to the origin of life.

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