Grooved Crater Ejecta

Scaled Image

Image Credit: NASA/JPL/ASU

About this image

This VIS image shows an unnamed crater located in Terra Sirenum. The surface of the ejecta contains radial grooves, visible on the thicker ejecta near the crater rim. The formation mechanism for the grooves is still unknown but several theories exist including basal surge flows and air pressure rock entrainment. Several gullies dissect the inner crater rim.

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


Image ID: 
V84865003 (View data in Mars Image Explorer)
2021-01-31 01:32
Thu, 2021-07-15
512 pixels (17 km)
1824 pixels (62 km)
0.03416 km/pixel
0.0345325 km/pixel


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