Black River Escarpment (Wisconsin): Difference between revisions

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The '''Black River Escarpment''' is a geological feature in Eastern [[Wisconsin]].<ref name=Martin1965>
The '''Black River Escarpment''' is a geological feature in Eastern [[Wisconsin]].<ref name=UsgsHydrogeologicMichigan/><ref name=Martin1965>
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{{cite book
| isbn=9780299034757
| isbn=9780299034757
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The escarpment marks the boundary between bedrock from [[Lower Magnesian]] [[limestone]] [[bedrock]] and earlier Black River limestone.
The escarpment marks the boundary between bedrock from [[Lower Magnesian]] [[limestone]] [[bedrock]] and earlier Black River limestone.
The escarpment emerges from [[Green Bay]], on [[Lake Michigan]].
The escarpment emerges from [[Green Bay]], on [[Lake Michigan]].
The escarpment's boundaries are not always visible to the untrained eye, but are makred by cliffs in some regions.
The escarpment's boundaries are not always visible to the untrained eye, but are marked by cliffs in some regions.


==References==
==References==
{{Reflist|refs=  
{{Reflist|refs=  
 
<ref name=UsgsHydrogeologicMichigan>
{{cite news       
{{cite news       
| url        =  
| url        = https://pubs.usgs.gov/of/2007/1236/pdf/OFR2007-1236.pdf
| title      =  
| title      = Summary of Hydrogeologic Conditions by County for the State of Michigan
| work        =  
| work        = [[United States Geological Service]]
| author      =  
| author      =  
| date        =  
| date        =  

Revision as of 22:00, 13 October 2023

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The Black River Escarpment is a geological feature in Eastern Wisconsin.[1][2][3] The escarpment runs parallel to and between the Niagara Escarpment and the Magnesian Escarpment. The escarpment marks the boundary between bedrock from Lower Magnesian limestone bedrock and earlier Black River limestone. The escarpment emerges from Green Bay, on Lake Michigan. The escarpment's boundaries are not always visible to the untrained eye, but are marked by cliffs in some regions.

References