Rim of Henry Crater

Scaled Image

Image Credit: NASA/JPL/ASU

About this image

This portion of the rim of Henry Crater has numerous dark streaks located on the slopes of the inner crater wall. These dark slope streaks have been suggested to have formed when the relatively bright dust that mantles the slopes slides downhill, either exposing a dust free darker surface or creating a darker surface by increasing its roughness. The topography in this region appears muted, indicating the presence of regional dust mantling. The materials on floor of the crater (middle to lower left) are layered, with differing degrees of hardness and resistance to erosion producing cliffs (resistant layers) and ledges (easily eroded layers). These layered materials may have been originally deposited in water, although deposition by other means, such as windblown dust and sand, is also possible. Henry Crater, named after a 19th Century French astronomer, is 170 km in diameter and is located in a region called Arabia Terra.

Please see the THEMIS Data Citation Note for details on crediting THEMIS images. 


Image ID: 
V01135006 (View data in Mars Image Explorer)
2002-03-17 18:23
Tue, 2002-04-02
1024 pixels (18 km)
3648 pixels (65 km)
0.018081 km/pixel
0.018213 km/pixel


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