Geology of Kent into northern France. The fold arises from the continuing Alpine orogeny and results in the general northward dip of the rock strata in most of Kent. There are extensive spreads of coastal and estuarine alluvium on the Thames Estuary coast, in the low ground surrounding the Isle of Thanet and across Romney Marsh. Alluvium also floors the valleys of the River Medway and Stour. 'Clay-with-flints' is a commonly occurring deposit across the North Downs which is a product of periglacial conditions during the last ice age. Loessic deposists, of aeolian origin i.e. windblown, are common in east Kent, especially on
Prehistory of the Levant consisting of extensive cultivation of grains (wheat and barley), intensive horticulture of vegetable crops, commercial production of vines and olives, and a combination of transhumance and nomadic pastoralism. The Gassulian culture, according to Juris Zarins, developed out of the earlier Munhata phase of what he calls the ""circum Arabian nomadic pastoral complex"", probably associated with the first appearance of Semites in this area. Geographically the area is divided between a coastal plain, hill country to the East and the Jordan Valley joining the Sea of Galilee to the Dead Sea. Rainfall decreases from the north to the south, with the