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Marte Vallis

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Title: Marte Vallis  
Author: World Heritage Encyclopedia
Language: English
Subject: Amazonis quadrangle, Orcus Patera, Outflow channels, Transit of Venus from Mars, Joint (geology)
Collection: Amazonis Quadrangle, Valleys and Canyons on Mars
Publisher: World Heritage Encyclopedia

Marte Vallis

Marte Vallis
Marte Vallis based on THEMIS day-time image
Columnar jointing in basalt, Marte Vallis. Image courtesy High Resolution Imaging Science Experiment, University of Arizona.[1]

Marte Vallis is a valley in the Amazonis quadrangle of Mars, located at 15 North and 176.5 West. It is 185 km long and was named for the Spanish word for "Mars".[2] It has been identified as an outflow channel, carved in the geological past by catastrophic release of water from aquifers beneath the Martian surface.[3]

Marte Vallis is the site of the first discovery of columnar jointing on Mars. [1]


  1. ^ a b Milazzo, M.P., Keszthelyi, L.P., Jaeger, W.L. Rosiek, M., Mattson, S., Verba, C., Beyer, R.A., Geissler, P.E., McEwen, A.S., and the HiRISE Team. (2009) Discovery of columnar jointing on Mars. Geology. 37(2), 171–174. Abstract
  2. ^
  3. ^ Carr, M.H. (2006), The Surface of Mars. Cambridge Planetary Science Series, Cambridge University Press.
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