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Science 16 February 2007:
Vol. 315. no. 5814, pp. 983 - 985
DOI: 10.1126/science.1136855
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Reports

Fracture-Controlled Paleo-Fluid Flow in Candor Chasma, Mars

Chris H. Okubo* and Alfred S. McEwen

Color observations from the High Resolution Imaging Science Experiment on board the Mars Reconnaissance Orbiter reveal zones of localized fluid alteration (cementation and bleaching) along joints within layered deposits in western Candor Chasma, Mars. This fluid alteration occurred within the subsurface in the geologic past and has been exposed at the surface through subsequent erosion. These findings demonstrate that fluid flow along fractures was a mechanism by which subsurface fluids migrated through these layered deposits. Fractured layered deposits are thus promising sites for investigating the geologic history of water on Mars.

Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA.

* To whom correspondence should be addressed. E-mail: chriso{at}lpl.arizona.edu

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Deformation band clusters on Mars and implications for subsurface fluid flow.
C. H. Okubo, R. A. Schultz, M. A. Chan, G. Komatsu, and High-Resolution Imaging Science Experiment (HiRISE (2009)
Geological Society of America Bulletin 121, 474-482
   Abstract »    Full Text »    PDF »
Planetary science: Multiple data sets, multiple scales, and unlocking the third dimension.
P. Martin and E. R. Stofan (2007)
Geosphere 3, 435-455
   Abstract »    Full Text »    PDF »
A Closer Look at Water-Related Geologic Activity on Mars.
A. S. McEwen, C. J. Hansen, W. A. Delamere, E. M. Eliason, K. E. Herkenhoff, L. Keszthelyi, V. C. Gulick, R. L. Kirk, M. T. Mellon, J. A. Grant, et al. (2007)
Science 317, 1706-1709
   Abstract »    Full Text »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)