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Inspection of the Mariner 9 B-camera (resolution 100-200m) and A-camera (resolution 1-2km) photographs of Mars reveals numerous analogs of terrestrial and lunar volcanic features. In addition to the exceptionally large constructional features in the Tharsis region, many other large and small landforms present probably are related to endogenic processes. ?? 1974.
Additional Publication Details
Martian volcanism: Additional observations and evidence for pyroclastic activity