Geology of London

Just like how we have different colors of toys and clothes, the Earth also has different layers inside it. These layers can tell us a lot about how the Earth was formed and how it has changed over time.

London, like many other cities around the world, sits on top of a layer of rock called sedimentary rock. This rock was formed millions of years ago when tiny bits of sand, mud, and other materials settled at the bottom of ancient seas and lakes. Over time, these bits of material were squeezed together and hardened into rock.

Underneath the sedimentary rock layer lies a layer of harder, metamorphic rock. This rock was formed when heat and pressure caused changes to the sedimentary rock over a long, long time.

And even deeper down, we have the Earth's core - a super hot, molten center of the planet that is fuelled by nuclear reactions. This is what gives the Earth its magnetic field and affects things like the tides and ocean currents.

So when we talk about the geology of London, we're really talking about the layers of rock that lie beneath the city. These layers can give us clues about what the city was like millions of years ago, and how it has changed since then. That's why geologists love studying the Earth - there's always something new to learn!