Radar Soundings of the Subsurface of Mars
Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS)
550
Mars
523
Mars; radar; subsurface
01 natural sciences
EVOLUTION
radar subsurface mars
13. Climate action
Mars Express orbiter
structure
GEOLOGIC HISTORY
0105 earth and related environmental sciences
DOI:
10.1126/science.1122165
Publication Date:
2005-12-01T01:24:37Z
AUTHORS (34)
ABSTRACT
The martian subsurface has been probed to kilometer depths by the Mars Advanced Radar for Subsurface and Ionospheric Sounding instrument aboard the Mars Express orbiter. Signals penetrate the polar layered deposits, probably imaging the base of the deposits. Data from the northern lowlands of Chryse Planitia have revealed a shallowly buried quasi-circular structure about 250 kilometers in diameter that is interpreted to be an impact basin. In addition, a planar reflector associated with the basin structure may indicate the presence of a low-loss deposit that is more than 1 kilometer thick.
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