driftless

My home sits on the edge of flood plains of the Black River not far from LaCrosse Wisconsin. Having come across some YT vids about flour gold finds in the driftless region I picked up on one of the traits that I know my property has - stratified clay beds at creek sides. I've picked up enough...

I'm just curious if anyone could explain, geologically, some of these rock formations. Just a curiosity. I understand some very basic fundamentals, but everything I know is piecemeal from a few years of googles research. I understand sedimentary rock is a cumulation of years of compression...