Mathematics – Logic
Scientific paper
Mar 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28..739k&link_type=abstract
Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 739.
Mathematics
Logic
1
Topography, Europa, Terrain, Galileo Spacecraft, Satellite Imagery, Solar Radiation, Luminous Intensity, Albedo
Scientific paper
Mottled terrain was identified as a fundamental geologic unit of Europa, based on 2.0 km/pixel Voyager 2 images. Understanding the characteristics of mottled terrain and its geologic relationships should improve our understanding of its formation and role in the evolution of Europa's surface. Galileo images of mottled terrain at low sun illumination provide new information about its topography. Linear ridges are observed to be disrupted by plateaus in the brown mottled terrain. A correlation of circular low-albedo features between Voyager 2 and Galileo data reveals that they often correspond to negative relief. Hummocky topography similar to brown mottled terrain is seen to surround large low-albedo spots north of the brown mottled terrain. Topography of gray mottled terrain is characterized at resolutions up to 0.44 km/pixel. Cross-cutting relationships of linear ridges in the gray mottled terrain allow for a determination of relative ages of some of its features.
Greeley Ronald
Klemaszewski James E.
SSI Team
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