#faulting

This experiment was created by piling up several layers of different ingredients and then pulling them apart (by tugging on some sort of black layer seen at the bottom right that was originally buried at the bottom). As the layers were pulled apart, the upper layers collapsed downwards forming a series of faults and folds. This pattern of a single down-dropped block is called a “graben” and it occurs all over the world in settings where layered, sedimentary rocks are pulled apart. You could even do this in your own kitchen; however, I'm not cleaning up the sediments afterwards. -JBB Image credit: Gunnar Ries https://commons.wikimedia.org/wiki/User:Amphibol https://commons.wikimedia.org/wiki/File:Graben_formation.jpg Other types of geology demonstrations: https://www.youtube.com/watch?v=Qnn_nNbYwGE http://tmblr.co/Zyv2Js1bUpvj4 http://tmblr.co/Zyv2Js1NPRTf3 http://tmblr.co/Zyv2Js1omTAgY