GEOG 2OC3 Lecture Notes - Lecture 3: Eramosa Karst, Chert

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Underlying softer sandstones and shale stones which are indicative of a shore environment: this figure shows a cross section of the niagara escarpment in the hamilton area. Depicts all of the layers of rock representing different depositional environments through millions of years. Shows paleo environment of the area showing how it changed over time. Niagara escarpment: most rocks are soluble in water, especially limestone (carbonate rocks) Can create formations due to dissolved patches or pockets in the rock. Niagara escarpment the result of uneven, chemical, glacial, and physical erosion of limestone rocks over millions of years and many different types of rock. Karst landscapes: carbonate and shale rocks of niagara escarpment have been eroding for hundreds of thousands of years, creating the valley landscapes we have today. This is why the escarpment has its characteristics undercut sapping and straight rock face.

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