Origin of the Olympus Mons aureole and perimeter scarp

Details Origin of the Olympus Mons aureole and perimeter scarp Origin of the Olympus Mons aureole and perimeter scarp

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980m%26p....22..221l&link_type=abstract

(Laboratorio di Astrofisica Spaziale di Frascati, European Workshop on Planetary Sciences, Rome, Italy, Apr. 23-27, 1979.) Moon

Astronomy and Astrophysics

Astronomy

11

Escarpments, Mars Surface, Planetary Evolution, Volcanoes, Landslides, Melting, Permafrost, Surface Properties, Terrain

Scientific paper

The aureole materials that form an annulus of corrugated terrain surrounding Olympus Mons are considered to be the product of mass movement. The scarp at the mountain's foot formed as a result of this massive removal of material from the volcano's outer flanks. This interpretation is supported by a comparison of the amount of material originally available before scarp formation, and the present volume of aureole materials. On the basis of distribution, surface textures and theoretical considerations it is considered that the aureole was produced by a series of megaslides, rather than by a flow mechanism. Production of the megaslides may have been assisted by a period of widespread melting of permafrost.

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