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Cross-section of the Michigan Basin based on well sections. Owing to the exaggeration of the vertical scale, the folds appear more prominent than they are in reality.

Michigan Basin

Cross-section of the Michigan Basin based on well sections. Owing to the exaggeration of the vertical…

North-south cross-section of the St. Gothard Massif, Switzerland, showing the fan-folds.

St. Gothard Massif, Switzerland

North-south cross-section of the St. Gothard Massif, Switzerland, showing the fan-folds.