Unconformities - a quick quiz to work out the type of unconformity

Unconformities – surfaces or contacts between two groups of rocks, where a layer of sediment has been deposited over an older, pre-existing rock.
But what do they look like in the field?

This short video presents a famous example, letting the viewer work out the geological history of the location, then reveals the processes which formed the rocks we see there today. This is all presented in a clear concise and colourful way, so is perfect for both students, and teachers and lecturers!

Geology in a Jiffy!