The Uzboi-Landon-Morava (ULM) outflow system is a long series of channels and depressions that may have carried water across a major part of Mars. It starts with channels that drain into the
Argyre basin in the
Argyre quadrangle. Water ponded in the Argyre basin, then the overflow is believed to have traveled northward through
Uzboi Vallis
Uzboi Vallis is a valley lying situated within the Margaritifer Sinus quadrangle (MC-19) region on Mars. It is named after the Uzboy dry channel, now in Turkmenistan, which repeatedly served as the main channel of the Amu Darya river. The valley ...
, into
Landon basin, through
Morava Valles, to the floor of
Margaritifer basin. Some of the water may have helped to carve
Ares Vallis
Ares Vallis is an outflow channel on Mars, named after the Greek name for Mars: Ares, the god of war; it appears to have been carved by fluids, perhaps water. The valley 'flows' northwest out of the hilly Margaritifer Terra, where the Iani ...
. Altogether, the total area drained for this watershed may have been about 11 X 10
6 km
2 or about 9% of Mars.
[Phillips, R., et al. 2001. Ancient geodynamics and global-scale hydrology on Mars. Science: 291, 2587_2591.]
Pictures below show the Argyre basin which was once full of water. Also, the wider view shows the distance the water traveled, which was south of Argyre basin to
Margaritifer Terra
Margaritifer Terra () is an ancient, heavily cratered region of Mars. It is centered just south of the Martian equator at and covers 2600 km at its widest extent. The area reveals "chaos terrain", outflow channels, and alluvial plains that a ...
.
Gallery
Image:Argyre basin topo.jpg, MOLA maps showing the geographic context of Argyre.
Wikimolaargyre.jpg, MOLA map showing boundaries for Argyre Planitia and other regions
Margaritifer Sinus.png, Map showing locations Uzboi Vallis and Ladon Vallis, other nearby features
See also
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References
{{Geography of Mars
Valleys and canyons on Mars
Margaritifer Sinus quadrangle
Argyre quadrangle