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Mass wasting processes on Churyumov-Gerasimenko

Mass wasting processes on Churyumov-Gerasimenko
Mass wasting processes on Churyumov-Gerasimenko In this OSIRIS narrow-angle camera image the boundary between the Ash and Seth regions is highlighted. The left-hand image shows evidence of collapse along the boundary, with debris at the base of a cliff (labelled A and B). Fracturing to produce crevices (C) is also observed with ‘deflation’ of the surface (D and E) appearing as a possible precursor to fracture or collapse. Surface deflation is also indicated in the right-hand image (G), above a fractured cliff face (F). The image also highlights the contrast between the dust covered horizontal slope and the ‘clean’ vertical face. The left image was taken on 7 August 2014, the right image on 2 September 2014. ESA / Rosetta / Philae / ROLIS / DLR; ESA / Rosetta / MPS for OSIRIS-Team MPS / UPD / LAM / IAA / SSO / INTA / UPM / DASP / IDA; Emily Lakdawalla