Environmental Geography
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'Mantle Plume' Scientists have uncovered new evi-dence for an ancient heat source beneath the West Antarctic ice sheet. |
Underground Mantle Plume The underground mantle plume is thought to be driving some of the melt ing seen beneath the ice, giving rise to lakes and rivers. It’s thought to have formed 50-110 million years ago, long before the ice sheet itself, and has likely played a role in rapid collapses that took place during past periods of climate change. |
Description According to NASA, mantle plumes are narrow streams of hot rock, which spread like a ‘mushroom cap’ beneath Earth’s surface. As the material is buoyant, .... |
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