Assertion: fold | /r/HasProperty | asymmetrical folds
Facets:
Source sentences:
text: Such folds are asymmetrical folds.
text: When a group of folds, whose axial planes are found to be perpendicular to the plane representing the enveloping surface of the folds (plane drawn tangential to the folds), the folds are considered symmetrical.
text: When this is not the case, the folds are considered asymmetrical, and the asymmetry of these folds will vary systematically across the axial surfaces of the folds.