thumbnail

Soil-like deposits observed by Sojourner, the Pathfinder rover

Journal of Geophysical Research E: Planets

By:
, , , , , , , ,
DOI: 10.1029/1998JE900005

Links

Abstract

Most of the soil-like materials at the Pathfinder landing site behave like moderately dense soils on Earth with friction angles near 34°-39° and are called cloddy deposits. Cloddy deposits appear to be poorly sorted with dust-sized to granule-sized mineral or rock grains; they may contain pebbles, small rock fragments, and clods. Thin deposits of porous, compressible drifts with friction angles near 26°-28° are also present. Drifts are fine grained. Cohesions of both types of deposits are small. There may be indurated soil-like deposits and/or coated or crusted rocks. Cloddy deposits may be fluvial sediments of the Ares-Tiu floods, but other origins, such as ejecta from nearby impact craters, should be considered. Drifts are probably dusts that settled from the Martian atmosphere. Remote-sensing signatures of the deposits inferred from rover observations are consistent with those observed from orbit and Earth.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Soil-like deposits observed by Sojourner, the Pathfinder rover
Series title:
Journal of Geophysical Research E: Planets
DOI:
10.1029/1998JE900005
Volume
104
Issue:
E4
Year Published:
1999
Language:
English
Publisher:
American Geophysical Union
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Geophysical Research E: Planets
First page:
8729
Last page:
8746
Number of Pages:
18