The origin of the grooves on PHOBOS

Details The origin of the grooves on PHOBOS The origin of the grooves on PHOBOS

Dec 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977stin...7913979t&link_type=abstract

Unknown

Astronomy and Astrophysics

Astrophysics

Craters, Crustal Fractures, Grooves, Mars (Planet), Phobos, Surface Properties, Topography, Geomorphology, Impact Damage, Photointerpretation, Spaceborne Photography, Viking Mars Program

Scientific paper

Various theories for the long, linear depressions on the surface of Phobos are reviewed. Imagery from Viking Orbiters is used to map the surface distribution of the grooves, study their morphology, and date them by means of the density of superimposed impact craters. Data is presented which tends to support the hypothesis that the deep-seated fracturing was caused by a large, nearly catastrophic cratering event. It is suggested that the grooves were produced during the creation of the Stickney crater, rather than as the result of tidal stresses induced by Mars or by drag forces during the hypothetical capture of the satellite by Mars.

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