Relative dating rock quiz
Applying the principles of relative dating to these rock exposures (also called "outcrops"), we can reconstruct the sequence of events that created the geologic features which we see.
Events can be the deposition of a sedimentary layer, the eruption of a lava flow, the intrusion of magma to form a batholith, a fault (break) in the rock that shifts one side relative to the other side (and causes an earthquake), a fold that bends and distorts rock layers, or any number of other geologic processes.
Include all the events which can be inferred from the drawing.
As geologists piece together the information at various outcrops, they can begin to assemble a "geologic map" (like a road map) of an entire region (consisting of many square miles).
Notice that the rock layers are each labeled with several letters.
Each rock layer was deposited at a different geologic time.
What is the approximate elevation of the Colorado River (shown by the arrow pointing downwards)? Question 6: On the South Half, which rock unit is likely to be the youngest (most recent)? Question 7: On the South Half, we can also notice that many faults have occurred in the area of the Cheops Pyramid.
These are the dark lines that slice through the rock formations.