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Science 1 October 1976:
Vol. 194. no. 4260, pp. 97 - 99
DOI: 10.1126/science.194.4260.97
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Articles

Viking Orbital Colorimetric Images of Mars: Preliminary Results

LAURENCE A. SODERBLOM 1

1 United States Geological Survey, Center of Astrogeological Studies, Flagstaff, Arizona 80001

Color reconstruction and ratios of orbital images of Mars confirm Earth-based measurements showing red/violet ratios for bright areas to be roughly 1.5 times greater than dark areas. The new results show complex variation among dark materials; dark streaks emanating from craters in southern cratered terrains are much bluer than dark materials of the north equatorial plains on which Viking 1 landed.

Submitted on September 7, 1976

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Science. ISSN 0036-8075 (print), 1095-9203 (online)