Small volcanoes in Tempe Terra, Mars: Their detailed morphometry and inferred geologic significance

Details Small volcanoes in Tempe Terra, Mars: Their detailed morphometry and inferred geologic significance Small volcanoes in Tempe Terra, Mars: Their detailed morphometry and inferred geologic significance

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lpi....24..379d&link_type=abstract

In Lunar and Planetary Inst., Twenty-fourth Lunar and Planetary Science Conference. Part 1: A-F p 379-380 (SEE N94-12015 01-91)

Mathematics

Logic

2

Mars (Planet), Mars Surface, Mars Volcanoes, Morphology, Planetary Geology, Volcanoes, Basalt, Geological Faults, Lava, Mars Craters, Vents

Scientific paper

The Tempe Terra province contains a variety of volcanic landforms that range in size from small vents (less than 10 km in diameter) to moderately sized volcanoes (150 km in diameter). The volcanoes are aligned along the dominant northerly and northeasterly trends of the faults in this region, and many of the volcanoes occur on grabens. Some workers have speculated on the nature of some of the volcanoes on the basis of their general morphology, shadow measurement height, lateral dimension, and geologic setting. As part of a larger study, we have obtained detailed photoclinometric profiles across five of the more conspicuous small volcanoes in the Tempe Terra region. For these data, we extracted for each volcano its flank width and edifice height and the width and depth of its summit crater. We statistically compared these dimensions for each volcano with a set of average dimensions for each type of terrestrial volcanic feature listed in Pike and Clow (1981). These comparisons indicate that the morphometries of the Martian volcanoes 1, 2, and 3 most closely match Earth's cratered basaltic lava shields, and the morphometries of volcanoes 4 and 5 are similar to those of terrestrial basaltic tuff rings.

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