mantle

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Evidence for Mixing and Layering of Earth’s Interior Clarifies Debate

Some slabs sink deep into the mantle, others stall at about 1,000 km depth. This behavior can be explained by moderate mantle layering with an accumulation of basalt (blue squiggles) in the lower mantle. Basalt was originally been subducted into the mantle as oceanic crust, and is recycled by plumes that feed volcanoes beneath [...]

By | 2016-11-10T05:40:50+00:00 December 30th, 2015|0 Comments