ages of rock
TRANSCRIPT
What is happening below the surface?
How did this black rock form?
How did this vertical line form?
What caused the valley & when?
What caused these unconformities?
What is the order of the unconformities?
TRANSCRIPT
What is happening below the surface?
How did this black rock form?
How did this vertical line form?
What caused the valley & when?
What caused these unconformities?
What is the order of the unconformities?