GEOG 111 Lecture Notes - Lecture 10: San Andreas Fault, Fault Scarp, Continental Collision
Document Summary
Geog 111 - lectures nineteen and twenty - 10/24 + 10/28. Folding: caused by compressional stress, the land literally folds if its ductile and somewhat malleable. The two primary surface features in folded landscapes are anticlines(upfold) and synclines(downfold) Folds are long linear and parallel and the axis runs along those linear features, axis of anticline and axis of syncline in center of fold. An anticline in a newly folded landscape (relatively) is a ridge at the surface, the two sides that lead into the axis are called the limbs" which drop down from the axis. A syncline is a valley at the surface (relatively new) and the limbs rise up from the axis. In an overturned anticline the land folded so high gravity forced it to essentially folds into itself. Hot spots can also be found under continents and deform ductile crust pushing it up creating domes.
