MAHLI at the rocknest sand shadow: Science and science-enabling activities

M. E. Minitti, L. C. Kah, R. A. Yingst, K. S. Edgett, R. C. Anderson, L. W. Beegle, J. L. Carsten, R. G. Deen, W. Goetz, Craig Hardgrove, D. E. Harker, K. E. Herkenhoff, J. A. Hurowitz, L. Jandura, M. R. Kennedy, G. Kocurek, G. M. Krezoski, S. R. Kuhn, D. Limonadi, L. LipkamanM. B. Madsen, T. S. Olson, M. L. Robinson, S. K. Rowland, D. M. Rubin, C. Seybold, J. Schieber, M. Schmidt, D. Y. Sumner, V. V. Tompkins, J. K. Van Beek, T. Van Beek

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

During Martian solar days 57-100, the Mars Science Laboratory Curiosity rover acquired and processed a solid (sediment) sample and analyzed its mineralogy and geochemistry with the Chemistry and Mineralogy and Sample Analysis at Mars instruments. An aeolian deposit - herein referred to as the Rocknest sand shadow - was inferred to represent a global average soil composition and selected for study to facilitate integration of analytical results with observations from earlier missions. During first-time activities, the Mars Hand Lens Imager (MAHLI) was used to support both science and engineering activities related to sample assessment, collection, and delivery. Here we report on MAHLI activities that directly supported sample analysis and provide MAHLI observations regarding the grain-scale characteristics of the Rocknest sand shadow. MAHLI imaging confirms that the Rocknest sand shadow is one of a family of bimodal aeolian accumulations on Mars - similar to the coarse-grained ripples interrogated by the Mars Exploration Rovers Spirit and Opportunity - in which a surface veneer of coarse-grained sediment stabilizes predominantly fine-grained sediment of the deposit interior. The similarity in grain size distribution of these geographically disparate deposits support the widespread occurrence of bimodal aeolian transport on Mars. We suggest that preservation of bimodal aeolian deposits may be characteristic of regions of active deflation, where winnowing of the fine-sediment fraction results in a relatively low sediment load and a preferential increase in the coarse-grained fraction of the sediment load. The compositional similarity of Martian aeolian deposits supports the potential for global redistribution of fine-grained components, combined with potential local contributions. Key Points Curiosity acquired and examined its first solid sample at the Rocknest sand shadow MAHLI images were critical in the science investigation of Rocknest materials MAHLI images played a critical role supporting first-time engineering activities

Original languageEnglish (US)
Pages (from-to)2338-2360
Number of pages23
JournalJournal of Geophysical Research E: Planets
Volume118
Issue number11
DOIs
StatePublished - Nov 2013
Externally publishedYes

Fingerprint

Lens
Image sensors
mars
sands
Mars
Lenses
Sediments
hands
Sand
eolian deposits
lenses
sand
Deposits
sediments
deposits
Mineralogy
mineralogy
eolian deposit
engineering
sampling

Keywords

  • aeolian
  • MAHLI
  • Mars Science Laboratory
  • Rocknest

ASJC Scopus subject areas

  • Geophysics
  • Oceanography
  • Forestry
  • Ecology
  • Aquatic Science
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Cite this

Minitti, M. E., Kah, L. C., Yingst, R. A., Edgett, K. S., Anderson, R. C., Beegle, L. W., ... Van Beek, T. (2013). MAHLI at the rocknest sand shadow: Science and science-enabling activities. Journal of Geophysical Research E: Planets, 118(11), 2338-2360. https://doi.org/10.1002/2013JE004426

MAHLI at the rocknest sand shadow : Science and science-enabling activities. / Minitti, M. E.; Kah, L. C.; Yingst, R. A.; Edgett, K. S.; Anderson, R. C.; Beegle, L. W.; Carsten, J. L.; Deen, R. G.; Goetz, W.; Hardgrove, Craig; Harker, D. E.; Herkenhoff, K. E.; Hurowitz, J. A.; Jandura, L.; Kennedy, M. R.; Kocurek, G.; Krezoski, G. M.; Kuhn, S. R.; Limonadi, D.; Lipkaman, L.; Madsen, M. B.; Olson, T. S.; Robinson, M. L.; Rowland, S. K.; Rubin, D. M.; Seybold, C.; Schieber, J.; Schmidt, M.; Sumner, D. Y.; Tompkins, V. V.; Van Beek, J. K.; Van Beek, T.

In: Journal of Geophysical Research E: Planets, Vol. 118, No. 11, 11.2013, p. 2338-2360.

Research output: Contribution to journalArticle

Minitti, ME, Kah, LC, Yingst, RA, Edgett, KS, Anderson, RC, Beegle, LW, Carsten, JL, Deen, RG, Goetz, W, Hardgrove, C, Harker, DE, Herkenhoff, KE, Hurowitz, JA, Jandura, L, Kennedy, MR, Kocurek, G, Krezoski, GM, Kuhn, SR, Limonadi, D, Lipkaman, L, Madsen, MB, Olson, TS, Robinson, ML, Rowland, SK, Rubin, DM, Seybold, C, Schieber, J, Schmidt, M, Sumner, DY, Tompkins, VV, Van Beek, JK & Van Beek, T 2013, 'MAHLI at the rocknest sand shadow: Science and science-enabling activities', Journal of Geophysical Research E: Planets, vol. 118, no. 11, pp. 2338-2360. https://doi.org/10.1002/2013JE004426
Minitti ME, Kah LC, Yingst RA, Edgett KS, Anderson RC, Beegle LW et al. MAHLI at the rocknest sand shadow: Science and science-enabling activities. Journal of Geophysical Research E: Planets. 2013 Nov;118(11):2338-2360. https://doi.org/10.1002/2013JE004426
Minitti, M. E. ; Kah, L. C. ; Yingst, R. A. ; Edgett, K. S. ; Anderson, R. C. ; Beegle, L. W. ; Carsten, J. L. ; Deen, R. G. ; Goetz, W. ; Hardgrove, Craig ; Harker, D. E. ; Herkenhoff, K. E. ; Hurowitz, J. A. ; Jandura, L. ; Kennedy, M. R. ; Kocurek, G. ; Krezoski, G. M. ; Kuhn, S. R. ; Limonadi, D. ; Lipkaman, L. ; Madsen, M. B. ; Olson, T. S. ; Robinson, M. L. ; Rowland, S. K. ; Rubin, D. M. ; Seybold, C. ; Schieber, J. ; Schmidt, M. ; Sumner, D. Y. ; Tompkins, V. V. ; Van Beek, J. K. ; Van Beek, T. / MAHLI at the rocknest sand shadow : Science and science-enabling activities. In: Journal of Geophysical Research E: Planets. 2013 ; Vol. 118, No. 11. pp. 2338-2360.
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AU - Rubin, D. M.

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