1
زمینشناسی و معدن::
صفحه ی محوری
Folds are also described by their axial plane, which is a surface that connects all the hinge lines of the folded strata.
In simple folds, the axial plane is verti- cal and divides the fold into two roughly symmetrical limbs.
However, the axial plane often leans to one side
In extreme cases, the axial plane can be tilted such that it has a horizontal orientation, making the fold appear to be "lying on its side."
An overturned fold can also "lie on its side" so the axial plane is horizontal.
واژگان شبکه مترجمین ایران