Planar deformation features

Okay kiddo, so you know how sometimes things can get squished or stretched in different directions? Like when you play with play-doh and you make a ball and then squish it into a flat pancake? That's kind of like planar deformation features, but on a much bigger scale!

Planar deformation features are special patterns that form in rocks when they get squished or stretched in certain directions. This can happen when rocks are deep underground and get buried under a lot of pressure from the weight of all the rock above them. It can also happen when rocks get pushed around by big forces, like during an earthquake.

So when rocks get squished or stretched, they can start to bend or break in different ways. And when they do that, they form these cool patterns that look kind of like lines or wrinkles. Scientists can look at these patterns and use them to figure out what kind of forces the rocks were subjected to.

So if you ever see some cool lines or wrinkles in a rock, you can think to yourself "wow, that rock has some planar deformation features! It must have been under a lot of pressure or had some big forces acting on it!"