The surface of Mars has a set of features that ring the plains for thousands of kilometres, which have been interpreted as a series of former shorelines. But topographic profiles along the putative shorelines contain long-wavelength trends in elevation that have been taken as an argument against the shoreline (and ocean) hypothesis. This paper demonstrates that true polar wander could bring the elevations of the proposed shorelines into line, reviving the ocean hypothesis.
- J. Taylor Perron
- Jerry X. Mitrovica
- Mark A. Richards
