Great Unconformity
The Great Unconformity is a surface in the rock record, best known from the Grand Canyon and found on several continents, where Cambrian sedimentary rocks rest directly on much…
Article ·Cambrian explosion
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Earth's mantle may have helped carve the Great Unconformity, a Nature study argues
Geoscientists Nicolas Flament and Santosh Dhungana argue in Nature that slow currents of hot mantle rock lifted continents for hundreds of millions of years so glaciers could…
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