Soils of Eagle Crater and Meridiani Planum at the Opportunity Rover Landing Site

@article{Soderblom2004SoilsOE,
  title={Soils of Eagle Crater and Meridiani Planum at the Opportunity Rover Landing Site},
  author={L. Soderblom and R. Anderson and R. Arvidson and J. Bell and N. Cabrol and W. Calvin and P. Christensen and B. Clark and T. Economou and B. Ehlmann and W. Farrand and D. Fike and R. Gellert and T. Glotch and M. Golombek and R. Greeley and J. Grotzinger and K. Herkenhoff and D. Jerolmack and J. Johnson and B. Jolliff and G. Klingelh{\"o}fer and A. Knoll and Z. Learner and R. Li and M. Malin and S. McLennan and H. Mcsween and D. Ming and R. Morris and J. W. Rice and L. Richter and R. Rieder and D. Rodionov and C. Schr{\"o}der and F. Seelos and J. Soderblom and S. Squyres and R. Sullivan and W. Watters and C. Weitz and M. Wyatt and A. Yen and J. Zipfel},
  journal={Science},
  year={2004},
  volume={306},
  pages={1723 - 1726}
}
The soils at the Opportunity site are fine-grained basaltic sands mixed with dust and sulfate-rich outcrop debris. Hematite is concentrated in spherules eroded from the strata. Ongoing saltation exhumes the spherules and their fragments, concentrating them at the surface. Spherules emerge from soils coated, perhaps from subsurface cementation, by salts. Two types of vesicular clasts may represent basaltic sand sources. Eolian ripples, armored by well-sorted hematite-rich grains, pervade… Expand
The Opportunity Rover's Athena Science Investigation at Meridiani Planum, Mars
TLDR
The Mars Exploration Rover Opportunity has investigated the landing site in Eagle crater and the nearby plains within Meridiani Planum, and the rocks are interpreted to be a mixture of chemical and siliciclastic sediments formed by episodic inundation by shallow surface water, followed by evaporation, exposure, and desiccation. Expand
In Situ Evidence for an Ancient Aqueous Environment at Meridiani Planum, Mars
TLDR
The geologic record at Meridiani Planum suggests that conditions were suitable for biological activity for a period of time in martian history. Expand
Soil grain analyses at Meridiani Planum, Mars
[1] Grain-size analyses of the soils at Meridiani Planum have been used to identify rock sources for the grains and provide information about depositional processes under past and current conditions.Expand
Jarosite and Hematite at Meridiani Planum from Opportunity's Mössbauer Spectrometer
Mössbauer spectra measured by the Opportunity rover revealed four mineralogical components in Meridiani Planum at Eagle crater: jarosite- and hematite-rich outcrop, hematite-rich soil,Expand
Soil sedimentology at Gusev Crater from Columbia Memorial Station to Winter Haven
[1] A total of 3140 individual particles were examined in 31 soils along Spirit's traverse. Their size, shape, and texture were quantified and classified. They represent a unique record of 3 years ofExpand
Sedimentary rocks at Meridiani Planum: Origin, diagenesis, and implications for life on Mars
The MER rover Opportunity has carried out the first outcrop-scale investigation of ancient sedimentary rocks on Mars. The rocks, exposed in craters and along fissures in Meridiani Planum, areExpand
Mineralogy at Meridiani Planum from the Mini-TES Experiment on the Opportunity Rover
TLDR
The Miniature Thermal Emission Spectrometer on Opportunity investigated the mineral abundances and compositions of outcrops, rocks, and soils at Meridiani Planum, finding Bounce rock is dominated by clinopyroxene and is close in inferred mineral composition to the basaltic martian meteorites. Expand
Curiosity at Gale Crater, Mars: Characterization and Analysis of the Rocknest Sand Shadow
TLDR
The Rocknest aeolian deposit is similar to aeOLian features analyzed by the Mars Exploration Rovers Spirit and Opportunity and implies locally sourced, globally similar basaltic materials or globally and regionally sourced basALTic components deposited locally at all three locations. Expand
Nature and Origin of the Hematite-Bearing Plains of Terra Meridiani Based on Analyses of Orbital and Mars Exploration Rover Data Sets
The ~5 km of traverses and observations completed by the Opportunity rover from Endurance crater to the Fruitbasket outcrop show that the Meridiani plains consist of sulfate-rich sedimentary rocksExpand
Overview of the Opportunity Mars Exploration Rover mission to Meridiani Planum: Eagle crater to Purgatory ripple
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 moreExpand
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The Opportunity Rover's Athena Science Investigation at Meridiani Planum, Mars
TLDR
The Mars Exploration Rover Opportunity has investigated the landing site in Eagle crater and the nearby plains within Meridiani Planum, and the rocks are interpreted to be a mixture of chemical and siliciclastic sediments formed by episodic inundation by shallow surface water, followed by evaporation, exposure, and desiccation. Expand
In Situ Evidence for an Ancient Aqueous Environment at Meridiani Planum, Mars
TLDR
The geologic record at Meridiani Planum suggests that conditions were suitable for biological activity for a period of time in martian history. Expand
Chemistry of Rocks and Soils at Meridiani Planum from the Alpha Particle X-ray Spectrometer
TLDR
The Alpha Particle X-ray Spectrometer on the Opportunity rover determined major and minor elements of soils and rocks in Meridiani Planum, indicating the interaction with water in the past is indicated by the chemical features in rocks and soils. Expand
Jarosite and Hematite at Meridiani Planum from Opportunity's Mössbauer Spectrometer
Mössbauer spectra measured by the Opportunity rover revealed four mineralogical components in Meridiani Planum at Eagle crater: jarosite- and hematite-rich outcrop, hematite-rich soil,Expand
Mineralogy at Meridiani Planum from the Mini-TES Experiment on the Opportunity Rover
TLDR
The Miniature Thermal Emission Spectrometer on Opportunity investigated the mineral abundances and compositions of outcrops, rocks, and soils at Meridiani Planum, finding Bounce rock is dominated by clinopyroxene and is close in inferred mineral composition to the basaltic martian meteorites. Expand
Evidence from Opportunity's Microscopic Imager for Water on Meridiani Planum
The Microscopic Imager on the Opportunity rover analyzed textures of soils and rocks at Meridiani Planum at a scale of 31 micrometers per pixel. The uppermost millimeter of some soils is weaklyExpand
Chemistry of Rocks and Soils in Gusev Crater from the Alpha Particle X-ray Spectrometer
The alpha particle x-ray spectrometer on the Spirit rover determined major and minor elements of soils and rocks in Gusev crater in order to unravel the crustal evolution of planet Mars. TheExpand
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