This is a region of innumerable faulted crust blocks, the elevated ones creating the N.
Geologically, Syria belongs to two distinct regions of the earth's crust, the northern and smaller portion lying within the great belt of folding of southern Europe and central Asia, and the southern and larger portion belonging to the Indo-African area, which, though often faulted, is usually free from crumpling.
They are faulted but not sharply folded.
Sericite in the form of scales and films characterizes those portions which have been faulted, squeezed or sheared.
In the Great Plains region the geological structure is very simple, consisting of nearly horizontal strata of Cretaceous rock in the middle and western portions, and of Tertiary rock on the eastern border, but in the mountain region the rocks have been folded and faulted until the structure is intricate and obscure.