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    ‘Pack Ice’ Tectonics Reveal Venus’ Geological Secrets - Forum

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    Forum » Main » Science, Astronomy, Nature » ‘Pack Ice’ Tectonics Reveal Venus’ Geological Secrets
    ‘Pack Ice’ Tectonics Reveal Venus’ Geological Secrets
    ManuDate: Saturday, 10-July-2021, 4:02 AM | Message # 1
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    Tracey Peake
    tracey_peake@ncsu.edu
    Paul Byrne
    paul.byrne@ncsu.edu

    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,” says Paul Byrne, associate professor of planetary science at North Carolina State University and lead and co-corresponding author of the work. “Although different from the tectonics we currently see on Earth, it is still evidence of interior motion being expressed at the planet’s surface.”

    The finding is important because Venus has long been assumed to have an immobile solid outer shell, or lithosphere, just like Mars or Earth’s moon. In contrast, Earth’s lithosphere is broken into tectonic plates, which slide against, apart from, and underneath each other on top of a hot, weaker mantle layer.

    untotenawake
    Read more/full article/source - https://news.ncsu.edu/2021/06/pack-ice-tectonics-venus-geology/
     
    Forum » Main » Science, Astronomy, Nature » ‘Pack Ice’ Tectonics Reveal Venus’ Geological Secrets
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