I would like to ask if you can help me age this fossil wood? The black wood was found on Pakefield beach and the brown was found at Cove Hythe a little further up the beach. What is it that causes the dramatic colour difference? Is it the age? or where it settled?
The dramatic colour difference could be down to something called variable preservation, were the fossil has been subject to different natural conditions that has preserved it as you have suggested.
Three ways jump to mind as to find out the specimens age.
You could get it R.C.D but this will cost money.
Is another fossil attached to the specimen? sometimes you can find out it's age with a more common fossil that is associated with your find.
Although you found both of your specimens as erratics (loose on the beach) if you found them were they originaly came from ie in the cliff you could find out the information from the internet about the geology and fossils it contains from the area.