Mars Odyssey Mission THEMIS: Feature Image: Unusual Crater (Released 15 May 2003)

Vital Statistics
Location: 16.8N, 257.4E	Released: 2003-05-15
Image Size: 18.4 x 65.7 km, 1024 x 3648 px
Resolution: 18m	Instrument: VIS

Image Credit: NASA/JPL/ASU

Image Context:
Context image for 20030515a

Wide Context:
Wide context image for 20030515a

Context image credit: NASA/JPL/MOLA
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Detailed information on this image is available at the THEMIS Data Releases website.

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

This unusual crater northeast of Ascraeus Mons displays an ejecta blanket that appears turned up around its edges. This may be a type of rampart crater, or may instead be a crater with its ejecta blanket buried by lava flows. These flows were later eroded away in places leaving behind the scarp. Numerous lava flows are seen in this image as well as sinuous channels. These features appear to be both volcanic (rilles) and fluvial channels.