An alternative explanation for the 'Buried Channels' on Mars: The gravity signal from a sharp boundary on partially compensated, long-wavelength topography
A. J. Dombard, M. L. Searls, R. J Phillips 2004 Geophysical Research Letters v 31 L05701 doi: 10.1029/2003GL019162
This article from Geophysical Research Letters uses data from the Mars Orbiter Laser Altimeter to examine the largest trough that flanks Tempe Terra. Contrary to previous research that concluded the trough to be a buried channel, these authors propose that the gravity trough arises from surface topography due to an effect that occurs when there is a relatively sharp boundary on a long-wavelength, partially compensated feature.
