Variations in lava flow width related to effusion rates through laboratory simulations

Details Variations in lava flow width related to effusion rates through laboratory simulations Variations in lava flow width related to effusion rates through laboratory simulations

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28..461g&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 461.

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Planetary Surfaces, Lava, Flow Distribution, Data Simulation, Temperature Dependence, Flow Velocity, Earth Surface, Venus Surface, Mars Surface

Scientific paper

Lava flows observed on Venus, Mars, and Earth commonly display a large-scale lobate planform; that is, the flow margin is not straight, but is comprised of a series of outwardly convex cusps that are pseudo-symmetric around the downstream flow direction. Based on the results of a series of laboratory simulations in which polyethylene glycol wax was extruded at a constant rate and temperature into a tank filled with cold sucrose solution, this paper proposes that the size of individual cusps within a single lava flow is related to the interplay of effusion rate, underlying slope, and cooling rate. Thus, the lava effusion rate can be constrained if the other factors are known or assumed.

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