A new study suggests that carbonatite metasomatism, not silicate metasomatism as previously thought, was dominant prior to the removal of the North China Craton in the early Cretaceous.
How did today’s continents come to be? Geological sleuths found clues in grains of sand.
New thermochronology data and thermal history modeling from the Canadian Shield show that the Great Unconformity formed there later than elsewhere in North America and may represent another event.
How have these continental relics from Earth’s early history survived the plate tectonic mixing machine?
Geoscientists have long been trying to answer the complicated questions of how and why Earth’s continents formed. New research suggests a solution that surprised even the investigators themselves.
A new map of the thickness of Earth’s lithosphere contains clues to large deposits of key metals.
As part of an effort to develop a geothermal energy source beneath its campus, Cornell University is planning to probe the “boring” old continental crust upon which many people live.
Underneath old and stable pieces of Earth's crust in North America, the mantle's uppermost portion contains multiple layers that change the velocities of seismic waves.