For geologists, a continent is a large area of thick continental crust composed of granite or similar igneous rocks ... a typical rock associated with underwater volcanism, show that Zealandia ...

Igneous intrusions are a type of rock feature. They form when molten rock cools below the surface of the Earth. Join Isla and Connor as they explore igneous rock landscape features at Traprain Law ...

Earth bubbles and broils beneath an underwater peak called Axial Seamount, located 480 kilometers (300 miles) off Oregon's ...