This paper challenges the common assumption that fluvial erosion is absent on Venus due to its high surface temperature. By analyzing Magellan radar data, the authors observe valley patterns in the oldest Venusian terrains, tesserae, that resemble fluvial erosion patterns on Earth. Using an indirect technique based on lava flooding of tesserae margins, they identify potential paleo-valleys. The findings support climate models suggesting a cool, wet early Venus and suggest further investigation by future Venus missions.
Publisher
Nature Communications
Published On
Nov 13, 2020
Authors
S. Khawja, R. E. Ernst, C. Samson, P. K. Byrne, R. C. Ghail, L. M. MacLellan
Tags
fluvial erosion
Venus
Magellan radar data
paleo-valleys
tesserae
climate models
Venus missions
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