Describe what happened to create the Sauk sequence from its beginning to the beginning of the Tippecanoe sequence.

Question

Quizplus · Accepted Answer

The Answer is 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 resulting in a craton-wide unconformity marking the boundary between the Sauk and Tippecanoe sequences.

Describe What Happened to Create the Sauk Sequence from Its