Folds and Faults HD is a geology app that effectively demonstrates the behavior of rock under stress, from gentle folds to faults capable of earthquakes. Folds and Faults HD (99 cents) is an iPad ...

That means it came from a region of faults called the Appalachian fold-and-thrust belt, which is much more ancient and quiet than fault lines on the West Coast. "Many of these faults, we don't ...

This can prove problematic, because the closer you are to the moving fault, the more shaking you will experience, Hough said. "You have the settlements right on top of the fold, and then if you ...

The authors say this sector has been deformed by small faults and folds that are growing progressively. "Although we can't exclude the possibility that these direction faults could cause ...

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