Describe what happened to create the Sauk sequence from its beginning to the beginning of the
Tippecanoe sequence. What will be an ideal response?
During the Middle Cambrian, shallow seas encroached over the craton, beginning the transgressive
phase of the Sauk. By Late Cambrian, the sea covered most of North America with the exception of a
portion of the Canadian shield and a few large islands named the Transcontinental Arch. The Sauk Sea
regressed from the craton during the Early Ordovician, and the exposed rocks were eroded. A cratonwide
unconformity marks the boundary between the Sauk and Tippecanoe sequences.
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What kind of energy is represented by water backed up behind a dam?
A. potential B. kinetic C. electromagnetic D. nuclear
Both sedimentary and metamorphic rocks exhibit layering. Explain how the layers develop for each rock type and give the name for the layering
What will be an ideal response?
Sediment scraped off the subducting plate builds up in a(n) ________
A) horst B) delta C) accretionary wedge D) basin
Kilauea's volcanic activity has occurred along the flanks of the volcano in a region called the ________, which has erupted continuously since 1983
A) East Rift Zone B) West Rift Zone C) North Rift Zone D) South Rift Zone