Tag Archives: effusive volcanism

Water floods and effusive volcanism in Hrad Vallis

Posted on June 28, 2018 by rburnham

[Editor’s note: From a paper by Christopher Hamilton and four co-authors recently published in the Journal of Geophysical Research.] • The Hrad Vallis region of Mars includes evidence of both aqueous flooding and effusive volcanism • Lava flows in the … Continue reading →

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‘Knobby terrain’ a sign of Mars’ explosive past

Posted on January 28, 2015 by rburnham

The Red Planet’s upper crust is brittle and weak. Planetary geologists often attribute this to effusive eruption — lava pouring out of a volcano onto the ground — early in Mars’s history with later modifications. However, some have suggested that … Continue reading →

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