University of Maryland researchers have found intriguing new evidence of ancient seafloor deep beneath the Earth’s surface. This discovery, made with seismic waves, suggests a complex and layered history of our planet, offering insight into processes that occurred during the age of dinosaurs. Using innovative techniques, the scientists explored a mysterious part of Earth’s mantle that has remained hidden from view—until now. The study, led by geology postdoctoral associate Jingchuan Wang, focused on the East Pacific Rise, where two segments of the planet’s crust meet in the southeastern Pacifi…