Igneous rock is formed by the cooling of molten rock, either at the surface (lava), or underground (as granite or other similar rocks). The heat of molten rock usually incinerates organisms rather ...

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 ...

"We can also date when igneous rocks crystallized ... is thought to have happened around the time that these rocks formed." Schmidt and the team still have a while to wait—potentially a decade ...