Kasei Valles outflow channel system

Kasei Valles, perspective view of Northern branch, looking West

	Kasei Valles, context map

Connecting the southern Echus Chasma and the plain Chryse Planitia in the East, Kasei Valles has a width of roughly 500 kilometres and, if Echus Chasma is included, extends for approximately 2500 kilometres.
 
 

Kasei Valles, colour view of Northern branch

There are two sets of images in this release, one showing the North branch, one showing the South branch. Both branches extend approximately South-West to North-East, and the images have been rotated one-quarter clockwise so that North is to the right.

Both valley branches exhibit a depth of 2900 metres.
 
 

Kasei Valles, black and white view of Northern branch

As one of the biggest outflow channel systems on Mars, Kasei Valles was probably formed by gigantic flood events and later additionally shaped by glacial activity.
 
 

Kasei Valles, perspective view of Northern branch, looking East

In the first set of images, the Northern branch of Kasei Valles and the plain Sacra Mensa can be seen. An oval structure at the western edge of the scene is interpreted to be a crater caused by an oblique meteorite impact.
 
 

Kasei Valles, perspective view of Southern branch, looking East

The Southern branch of Kasei Valles and Sacra Mensa, with its 1- to 2-kilometre-deep graben system, Sacra Fossae, is shown in the second set of images. The terraces are up to 30 kilometres wide, located at the base of the walls on both sides of the valley branch.
 
 

Kasei Valles, perspective view of Southern branch, looking South-West

The colour scene was derived from three HRSC-colour channels. The perspective views have been calculated from the digital terrain model derived from the stereo channels. The 3D anaglyph images were derived from the stereo and nadir channels. Image resolution has been decreased for use on the internet.

(See note after last image below for more details.)
 
 

Kasei Valles, colour view of Southern branch

 
 

Kasei Valles, black and white view of Southern branch

 
 
Note:
 
This image release includes two 3D anaglyph images. Use links at right to access these separately.

For more information on Mars Express HRSC images, please read our updated FAQ (frequently asked questions).
 

Mars Express image browser
•	- (http://www.esa.int/SPECIALS/Mars_Express/SEMVZF77ESD_0.html)
3D anaglyph images
•	3D anaglyph images - Kasei Valles (http://www.esa.int/esaSC/SEMHP16LARE_index_0.html)
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