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Article Images
Crater Holden and Uzboi Vallis
 
9 May 2005

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Mars Express obtained this image on 14 June 2004 during orbit 511 with a ground resolution of approximately 45 metres per pixel. The scenes show the region of Noachis Terra, over an area centred at about 26º South and 325º East. North is to the left.

The valley of Uzboi Vallis (bottom right) begins in the region of Argyre Planitia and crosses the southern highlands in the direction of the northern lowlands. It connects several large impact craters, such as the 140 kilometre-wide Crater Holden shown here.

Credits: ESA/DLR/FU Berlin (G. Neukum)

 
 
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Mao showing Crater Holden and Uzboi Vallis in context. The MArs Express HRSC obtained the images of the region of Noachis Terra, over an area centred at about 26º South and 325º East.

Credits: ESA/DLR/FU Berlin (G. Neukum)
 
 
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Mars Express obtained this image on 14 June 2004 during orbit 511 with a ground resolution of approximately 45 metres per pixel. The scenes show the region of Noachis Terra, over an area centred at about 26º South and 325º East. North is to the left.

Credits: ESA/DLR/FU Berlin (G. Neukum)
 
 
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Mars Express obtained this 3D anaglyph image on 14 June 2004 during orbit 511 with a ground resolution of approximately 45 metres per pixel. The scenes show the region of Noachis Terra, over an area centred at about 26º South and 325º East. North is to the left.

Credits: ESA/DLR/FU Berlin (G. Neukum)
 
 
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This is close-up of the image obtained by Mars Express on 14 June 2004. North is to the left. It shows a well-preserved ‘alluvial fan’ (i.e. a fan-shaped deposit of water-transported material) in the southern part of Crater Holden.

Credits: ESA/DLR/FU Berlin (G. Neukum)
 
 
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This is a close-up of the image taken by Mars Express on 14 June 2004. Uzboi Vallis enters Crater Holden from the south-west. Two distinct phases of its development can be seen. In the first phase, a valley was formed up to 20 kilometres wide. Later, a smaller channel was cut into the valley floor. The end of the small channel has been blocked by a landslide from the crater rim.

Credits: ESA/DLR/FU Berlin (G. Neukum)
 
 
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This perspective view was taken by Mars Express on 14 June 2004. It looks across the alluvial fan on the crater floor, to the entrance to Uzboi Vallis in the centre background.

Credits: ESA/DLR/FU Berlin (G. Neukum)
 
 
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This perspective view of the rim of Crater Holden was taken by Mars Express on 14 June 2004. It looks south, the alluvial fan can be seen in the centre, and the channel system of Uzboi Vallis is visible at right. The rim of the crater has been cut by gullies, which sometimes form small valley networks.

Credits: ESA/DLR/FU Berlin (G. Neukum)
 


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