Folds

Force of the Earth: Volcanoes and Earthquakes

When geological stress applies pressure to rock layers, they can bend instead of breaking, creating folds in Earth's crust. Folds are curved rock layers that form due to compression forces over millions of years. These folded layers create mountains, valleys, and undergro...

As tectonic plates collide and compress deep underground, rocks don’t always break; they often fold instead.

This happens when rocks are subjected to immense pressure and deform without cracking, like how a rug crumples into waves when you push its ends together.

These folds often form in sedimentary rocks, where different layers are...