if gabbro cut across sandstone and schist and schist is the oldest meaning the bottom layer of sediment would the gabbro be the youngest layer im getting really mixed up ive searched on the web for a diagrame but they show intrusions of all kinds i need help in finding a diagrame and can u give an insight into a history of the region starting with the schist i would be greatfull for any help

You should read articles by Dr. Ken Ham. He is an expert on this subject.

Jane I'm struggling on this too!

and me too i thought this wouldnt be too hard a course for a level one lol