New research from HKU geologists suggests that Earth's first continents were born not from plate tectonics, but from deep ...

Where the Earth’s core meets the mantle, there are two giant regions that have baffled geologists for fifty years. A new ...

When plates collide, oceanic crust will be subducted under continental crust, recycling it back into the mantle. Therefore, oceanic crust never gets to age as much as continental crust, which almost ...

The Earth’s crust is disappearing right beneath our feet – and most people don’t even realise it. Now, if you’re a geologist, ...

This "virtual Earth" is the first computer model that "views" the crust and mantle as an interconnected, dynamic system, the researchers reported Oct. 30 in the journal Science Advances.

The hot mantle churns and circulates, moving the crust at the surface, causing the oceanic crust to dive into its depths — a process called subduction — and triggering the upwelling of vast ...

To come to this conclusion about the process of plate tectonics, the scientists created a new computer model of Earth with the crust and mantle considered as one seamless system. Over time, about ...

At mid-ocean ridges at the bottom ocean, where plates drift apart, new oceanic crust is constantly produced as basaltic rocks when hot volcanic lava emerges from the mantle and solidifies.

Far beneath the ocean's surface, where mountain belts rise and ancient oceanic crust lies hidden, a long-lost tectonic plate ...

A study reveals that the oldest continental crust on Earth is slowly being broken up by shifting tectonic forces.

However, progress has sped up, and geologists now think they are composed of relatively dense oceanic crust which broke off the rest of its plate and was forced through the mantle.