By applying the various principles, draw a single
cross-section an area in which the following sequences of
Metamorphism took place during the Archean.
During later Precambrian time, uplift and erosion reduced the area to a plane.
Three layers of marine sedimentary rock (limestone) were deposited on the plane during
Ordovician through Devonian time.
Although sedimentation may have taken place during the Mississippian through Permian, there
are presently no sedimentary rocks of that age in the area.
A vertical dike intruded all rocks that existed here during the Permian.
A layer of sandstone was deposited during the Triassic.
All of the rocks were tilted 45 during the Cretaceous.
Cretaceous tilting was
followed by erosion to a planar surface.
The area dropped below sea level, and two layers of Tertiary sedimentary rock were deposited on
the erosion surface.
Uplift and erosion during the Quaternary resulted in a slightly hilly surface.
Following erosion a vertical dike fed a small volcano.
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