Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than ...

Earth's crust may "drip" into its middle layer under ... but it can be hard to untangle the signs of possible dripping from the geology created by the tectonic plates' horizontal movements.

Oregon’s state geologist is pitching a novel idea of using the region’s rocky basalt layer – born of lava that flowed ...

University of Maryland researchers have found intriguing new evidence of ancient seafloor deep beneath the Earth's surface.