dcut Cross-Section Assignments - Fold Roadcut Cross-Section: Consider the style of folding characteristic of deformed mountain ranges like the N. Appalachians. These usually take the form of a progression of fold types that are superimposed on each other, with the younger aged F2 upright folds (reflecting continued horizontal shortening) refolding the already existing older F1 recumbent folds (formed due to early overthrusting of one continent up and over the edge of another continent). Now 400 million years later, imagine a small roadcut that exposes one of these F1/F2 refolded folds as a major clue to the deformation responsible for mountain building. USING THE OUTCROP/LEGEND FORMAT FOUND IN THE ROADCUTINSTRUCTIONS: 1. To start you need a basic sedimentary or metamorphic set of horizontal rock layers to be folded (you can't have folds without layers in the rock to show the folding). 2. To show the first F1 fold phase imagine folding the initial horizontal layers back on themselves showing a single fold nose in a classic F1 recumbent isoclinal fold style. Mark the trace of its axial plane as a horizontal dashed line dividing the fold into two parts, an upper limb set and a lower limb set of horizontal layers