NASAA Virtual Tour of Mars


 Ascraeus Mons. This volcano sits on an apparent northeast-southwest fracture zone on the Tharsis bulge along with Pavonis Mons and Arsia Mons. The Tharsis bulge is a broad uplifted region on Mars from which radial surface fractures extend for thousands of kilometers. There has been a large amount of volcanic activity within this gently sloping region. The summit of this feature sits at 10-11 km above the Martian datum and a conservative estimate of its diameter is 5500 km.
 

 Tharsis Tholus; also on the Tharsis bulge.
 

 Ceranius Tholus (lower right) and Uranius Tholus (above Ceranius). The fractures at left are known as Ceranius Fossae; they extend radially from the Tharsis bulge.


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Questions and comments about this page should be addressed to:
Dr. David R. Williams, dwilliam@nssdc.gsfc.nasa.gov, (301) 286-1258
NSSDC, Mail Code 633, NASA/Goddard Space Flight Center, Greenbelt, MD 20771

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Page Author: Malcolm J. Shaw, Malcolm_Shaw@pcp.ca
NASA Official: J.H. King, king@nssdca.gsfc.nasa.gov
Last Updated: 15 January 1999, DRW