Earth’s crust, tectonic plates gradually formed, geoscientists find
UNIVERSITY PARK, Pa. — The Earth’s crust continued a slow process of reworking for billions of years, rather than rapidly slowing its growth some 3 billion years ago, according to a Penn State-led research team. The new finding contradicts existing theories that suggest the rapid formation of tectonic plates earlier in Earth’s history, researchers said.
They published the research in Geochemical Perspectives Letters.
The work may help answer a fundamental question about our planet and could hold clues as to the formation of other planets, according to lead author ...
















