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| | [No title] |
 | | In some areas, such as at Euboea Fluctus (lat 46¡ S., long 350¡), the depressions are elongate and appear to be bounded by subparallel, curvilinear scarps. |
 | | Interpretation: Volcanic flows, pyroclastic deposits, sulfur-rich fumarolic deposits, and possibly active or extinct lava lakes in calderas or fissures; materials may be composed of sulfur, sulfur compounds, or silicates CONE MATERIAL c Cone materialÑForms raised rims surrounding some occurrences of patera floor material. |
 | | Interpretation: Tectonically deformed ancient silicate crust or extremely viscous silicate lava flows, possible association with tectonism and local reheating due to thermal anomaly in Creidne Patera (Schaber and others, 1989) ms Smooth materialÑForms elevated, relatively smooth terrain protruding above present surface. |
| astrogeology.usgs.gov /Projects/PlanetaryMapping/DIGGEOL/galsats/io/iotxt.asc (4794 words) |
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