Throughout the earth's history, each of the three rock types has been continuously formed and recycled into other types of rock in a process called the “rock cycle.” This makes the rock record ...

Geologists confirm that industrial waste turns into rock in just 35 years, challenging traditional ideas about geological formation.

The Rock Cycle is Earth's great recycling process where igneous, metamorphic, and sedimentary rocks can all be derived from and form one another. Newsletters Amazon Prime Day Share a News Tip.

This recycling of rocks is a process called the rock cycle. Image caption, Arthur’s Seat overlooks Edinburgh and is the remains of an extinct volcano made from igneous rock.