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Telescopes Canals and Space Probes
The Geomorphology of Mars
Channel Types Distribution Ages and Proposed Origins
7 other sections not shown
appear approximately areas atmosphere Baker bars basalt basins canyon Carr catastrophic chan Channeled Scabland Chapter Chasma Chryse Planitia complex considered crater cratered terrain debris deposits depth display downstream Earth eroded erosion evidence explain extensive Figure flood floor flow fluid forms frame fretted grooves ground head hills images impact indicate Kasei Vallis Lake land landslide lava layer longitudinal lower Maja major Malin Mariner Mariner 9 Mars Martian mass material ment morphology noted observed occur orbital origin outflow channels pattern perhaps permafrost plains planet plateau Pleistocene portion possible present pressure probably processes produced reach region relatively release result ridges rivers rock scale scarp Sharp similar slope stream streamlined suggested surface terrain terrestrial tion tributary troughs units uplands upper Valles valley various Viking Viking mosaic volcanic walls wide zones