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| | The Planet Mars: A History of Observation and Discovery. Chapter 13: Vikings---and Beyond. University of Arizona Press. |
 | | At the resolution of the orbiter images, the surface had appeared featureless apart from impact craters and wrinkle ridges---there was little, indeed, to distinguish it from one of the wide gray plains of the Moon. |
 | | Unlike the rather varied rock forms of Chryse, Utopia's rocks proved to be larger on average and more evenly distributed across the surface, with no bedrock outcrops or large drifts, and this created a singularly monotonous appearance. |
 | | Whereas the Chryse site consisted of gently rolling plains, Utopia proved to be remarkably flat, presumably because of its proximity to the 90-kilometer impact crater, Mie, whose rim lay 170 kilometers east of the landing site. |
| www.uapress.arizona.edu /onlinebks/mars/chap13.htm (5921 words) |
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