Understanding Earth's Crust Earth's crust ranges from 5 to 70 kilometers in thickness and serves as the planet's outermost ...

Image: Tiny crystals called zircons are used to date oceanic crust. A newly developed method that detects tiny bits of zircon in rock reliably predicts the age of ocean crust more than 99 percent of ...

Researchers created a seismic map of Earth's interior beneath the southeastern Pacific Ocean and discovered an ancient slab of oceanic crust that appears to be stuck midway through the mantle. When ...

Utrecht University PhD candidate Suzanna van de Lagemaat has reconstructed a massive and previously unknown tectonic plate that was once one-quarter the size of the Pacific Ocean. She reconstructed ...

The discovery, made just off the coast of Vancouver Island in the Pacific Ocean, shows that a section of the oceanic crust is ...

Scientists have revealed that two continent-size regions in Earth's deep mantle have distinctive histories and resulting chemical composition, in contrast to the common assumption they are the same. A ...

Record earthquake activity off the coast of Vancouver Island hints at the birth of new oceanic crust. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...