Folding of the California Coast Range Type Illustrated by a Series of Experiments

Abstract

The writer, in previous papers, has expressed the belief that a large portion of the folding in the Coast Range of California is the result of drag on faults produced at times of compression. This paper describes a number of experiments with plasteline where folding has been produced as the result of drag. It is believed that these experiments illustrate and duplicate the conditions under which folding has taken place along the faults in the Coast Ranges and in other parts of the world. The latter part of the paper gives a number of illustrations of Coast Range folding which is associated with faulting; the character of the folding is believed to have been the result of drag combined with compression. It is the writer's belief that this type of folding is fairly common all over the world.