overfold

/ ˈəʊvəˌfəʊld /

noun

1. geology a fold in which one or both limbs have been inclined more than 90° from their original orientation

Example Sentences

In powerfully folded regions the axial planes of the folds are no longer upright; they may be moderately inclined, producing an “inversion,” “inverted fold” or “overfold.”

From Project Gutenberg