Much like Tyrrhena Patera (slide #17), Hadriaca Patera is a deeply eroded feature having little vertical relief. Several impact craters are superimposed on the eroded flanks, indicating a great age for this volcano. A large channel has its source near the southeastern margin of the volcano; the fluid that carved the channel flowed southwest into the interior of the Hellas basin. 30 S, 267 W;
Viking Orbiter frame 106A09, shading corrected version. Right click here to download a high-resolution version of the image (2.54 MB)
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