The deep roots of Earth's oldest continents have long been thought to be unshakable. But a new seismic discovery suggests that even these stable landmasses can change. Beneath the center of North ...
A study published in the journal Communications Earth & Environment reveals the existence of a 60-million-year cycle combining tectonics, biogeochemistry, and marine biodiversity. By analyzing ...
Reston, VA – The U.S. Geological Survey (USGS) and the Association of American State Geologists (AASG) announced that they have developed an updated geologic time scale and color scheme for use in ...