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
Site of the Claudian invasion of Britain in Kent. Dio describes how the troops saw a shooting star whilst at sea and were cheered by this omen. He adds that it travelled from east to west and that this was the direction the Romans were sailing in. However, a voyage from Boulogne to Kent sails from south to north. Taking Boulogne as the point of departure, historians such as John Morris and J. G. F. Hind have used Dio's account to suggest a landing point much further west along the south coast of Britain, around the Solent or Southampton Water. This is supported by Dio's stated reason