Southeastern Wisconsin is covered by flat-lying Paleozoic rocks. However, there are many fractures within these rocks that generate interest.
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- Jody and a fracture that extends across the whole quarry near Lannon, WI.
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- Jody points out offsetting fault sets in the quarry. Next picture is a close-up view.
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- Fault surface with horizontal slickenlines (along pencil). The sense of movement (horizontal) inferred from these slickenlines is in contrast to the apparent offset (vertical) of horizontal fractures.
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- Bonnie and Jody measure fractures around the old quarry in Harrington Beach State Park located north of Port Washington, WI.
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- If you get tired of wielding the Brunton compass to make measurements, you can always enjoy the sites and sounds of the Lake Michigan surf at Harrington Beach State Park.
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- More Lake Michigan surf at Harrington Beach State Park.