title: Frost phenomena on Mars.
abstract: The hypothesis that the Martian wave of darkening might be a frostheaving phenomenon has been examined. Consideration of the water-vapor sorption characteristics of a silicate mineral surface at temperatures below freezing leads to the conclusion that, without strongly deliquescent salts to attract and retain liquid water in the Martian soil, frost-heaving phenomena are not to be expected on Mars. On the other hand frost-heaving phenomena involving the freezing and thawing of ammonia may be common in the soils of Jupiter.
authors.forename: D M
authors.initials: DM
authors.lastname: Anderson
authors.forename: E S
authors.initials: ES
authors.lastname: Gaffney
authors.forename: P F
authors.initials: PF
authors.lastname: Low