Here's how it works:
* Under pressure: When rock is subjected to immense pressure, like the weight of mountains or tectonic plates pushing against each other, it can deform.
* Like putty: Think of it like a very stiff piece of putty. If you push on it gently, it might bend a little. But if you apply a lot of pressure, it will deform much more significantly.
* Over millions of years: The rock doesn't flow like a liquid. Instead, it slowly deforms and moves over millions of years. This is called ductile deformation.
Here are some examples of how solid rock flows:
* Mountain formation: When tectonic plates collide, the rock at the boundary can flow, causing mountains to rise.
* Folding: Layers of rock can bend and fold over time due to pressure, creating interesting geological features.
* Fault zones: Where rocks break and move past each other, the rock around the fault can flow under pressure.
* Mantle convection: The Earth's mantle, a layer of hot, solid rock, flows very slowly due to heat from the Earth's core. This flow drives plate tectonics.
Key points:
* Rock flow is a very slow process that happens over millions of years.
* It's caused by extreme pressure.
* It's called ductile deformation.
Let me know if you'd like to learn more about any of these examples!
