'Pack Ice' Tectonics tagged posts

‘Pack Ice’ Tectonics reveal Venus’ Geological Secrets

Venus
An oblique radar view of the largest block in the Venus lowlands identified by Byrne et al. Complex belts of tectonic structures bound the block, but the interior is much less deformed, hosting lava flows and a handful of impact craters. Image: Paul Byrne, based on original NASA/JPL imagery.

A new analysis of Venus’ surface shows evidence of tectonic motion in the form of crustal blocks that have jostled against each other like broken chunks of pack ice. The movement of these blocks could indicate that Venus is still geologically active and give scientists insight into both exoplanet tectonics and the earliest tectonic activity on Earth.

“We’ve identified a previously unrecognized pattern of tectonic deformation on Venus, one that is driven by interior motion just like on Earth,” sa...

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