Geo Day in the Life

Baraboo Geology: Facies Transitions and Glacial Landscape Change

Geology Journal, Geo Day in the Life / Christopher D. Smith

How do facies transitions, glaciation, and erosion shape a landscape through time? Field observations from Wisconsin’s Baraboo region reveal evidence of ancient marine environments, the Great Unconformity, and the processes that continue shaping the modern landscape.

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Mansfield Formation exposure at the Cagles Mill emergency spillway showing Pennsylvanian fluvial deposits in Indiana

Cagles Mill Geology: A Pennsylvanian River System

Geology Journal, Geo Day in the Life / Christopher D. Smith

What can sedimentary rocks reveal about ancient landscapes? A field investigation at Indiana’s Cagles Mill emergency spillway reveals evidence of a Pennsylvanian meandering river system preserved within the Mansfield Formation.

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