Apollinaris Patera (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)

This Martian Volcano is found along the border between the ancient Martian Highlands and the younger Northern Lowlands.
It is characterized by a large caldera (~60 Km diameter), a basal scarp, and a large fan that emanates from the caldera and covers the Southern Flanks. Like other martian volcanoes it appears to have undergone episodes of both explosive and effusive eruptions. The color information in this mosaic of Apollinaris Patera comes from a series of color frames acquired by Viking 1 during orbit 468S (~350 m/pixel).
To sharpen details of morphology, the color mosaic was merged with a higher resolution (~180 mt/pixel) series of images acquired during orbit 088A.

For more information on Apollinaris Patera see:

- Robinson et al., Chronology, Eruption Duration, and Atmospheric Contribution of the Martian Volcano Apollinaris Patera, Icarus, 104, pp. 301-323, 1993.
- Scott, D.H., J.M. Dohm, D.J. Applebee, Geologic Map of Science Study Area 8, Apollinaris Patera Region of Mars, (Special MTM-10186 Quadrangle), USGS Misc. Investigations Series, MAP-I-2351, 1993.