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Recalibrated Mariner 10 Color Mosaics: Implications for Mercurian Volcanism

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Science  10 Jan 1997:
Vol. 275, Issue 5297, pp. 197-200
DOI: 10.1126/science.275.5297.197

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Abstract

Recalibration of Mariner 10 color image data allows the identification of distinct color units on the mercurian surface. We analyze these data in terms of opaque mineral abundance, iron content, and soil maturity and find color units consistent with the presence of volcanic deposits on Mercury's surface. Additionally, materials associated with some impact craters have been excavated from a layer interpreted to be deficient in opaque minerals within the crust, possibly analogous to the lunar anorthosite crust. These observations suggest that Mercury has undergone complex differentiation like the other terrestrial planets and the Earth's moon.

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