ScienceEarth’s churning mantle may have created the Great Unconformity
A Nature study argues that slow currents of hot rock in Earth’s mantle may have lifted continents for hundreds of millions of years, allowing glaciers to erode them before they sank and were covered by new sediments. The process may explain the vast gap in the Grand Canyon’s geologic record.
A
Ars Technica★★☆☆☆2026-11-06 20:24Original
Earth’s churning mantle may have created the Great Unconformity
Science