Tharsis volcanoes - Separation distances, relative ages, sizes, morphologies, and depths of burial

Details Tharsis volcanoes - Separation distances, relative ages, sizes, morphologies, and depths of burial Tharsis volcanoes - Separation distances, relative ages, sizes, morphologies, and depths of burial

Nov 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87.9829w&link_type=abstract

(International Colloquium on Mars, 3rd: Dedicated to Thomas A. Mutch /1931-1980/, Pasadena, CA, Aug. 30-Sept. 2, 1982.) Journal

Mathematics

Logic

8

Geomorphology, Mars Volcanoes, Planetary Evolution, Planetology, Depth, Distance, Lithosphere, Mars Surface, Planetary Structure, Size (Dimensions), Statistical Distributions, Thickness, Volcanology

Scientific paper

Network analysis indicates the separation distances of the Tharsis volcanoes to be 700 to 900 km; this is considered to be the thickness of the Tharsis thermal lithosphere or 'tectosphere' which has thickened with time. Although as a whole the Tharsis volcanoes exhibit a random distribution, preferential alignments emerge when the history of the region is divided into separate periods. The preferential alignments mimic those of fractures in the surrounding terrain. Photogeologic and morphometric data indicate that the volcanoes fall into four distinct classes: montes, tholi, paterae, and a class whose sole representative is Alba Patera. The volcanoes have been buried by lava up to about 4 km in thickness. The sizes of the volcanoes directly correlate with their separation distances from their nearest neighbors. It is concluded that the greater the lithosphere thickness, the larger will be the volcano and the greater its separation distance from its nearest neighbor.

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