Oh, I forgot, you haven't explained angular unconformities themselves yet, either.
We can theorize how billions of tons of swirling water would cause the earths crust to crack up and ooze like a meringue pie. How layers of sediment could be compressed by the weight over them, causing them to bend over on themselves, while magma is squeezed up into the pockets that are created by the immense forces that we have never seen since.
99% of the modern geologists have not even considered the implications, therefore a majority of the articles do not consider the possibilities. Most professional geologists are more concerned with how the drainiage on a new golf course they are working on, will hold up under a heavy rain.