3. Why does fracking have anything to do with Wisconsin?

A:

3. Wisconsin sandstone was deposited millions of years ago along the shores of shallow tropical seas where the grains spent millions of years rolling gently in the waves, becoming perfectly round and the deposits becoming almost perfectly sorted into deposits of uniformly graded size before becoming sandstones. The Jordan, St. Peter and Wonewoc sandstones of the Driftless Area of western Wisconsin represent the largest, most accessible accumulation of proppant grade sandstone in the world.


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