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The Weald–Artois Anticline, or Wealden Anticline, is a large anticline, a geological structure running between the regions of the Weald in southern England and Artois in northern France. The fold formed during the Alpine orogeny, from the late Oligocene to middle Miocene as an uplifted form of the Weald basin through inversion of the basin.
The Weald Basin has yielded significant quantities of gypsum from Jurassic Purbeck beds and a number of brickworks exploit the lower Cretaceous clays. The inversion of the Weald Basin throughout the late Cretaceous and early Tertiary resulted in the formation of the Wealden Anticline and a number of smaller anticlines within the larger structure.
A north-south cross-section through the Weald-Artois Anticline, East Sussex. The South Downs are formed from a thick band of chalk which was deposited during the Cretaceous Period between 100 and 66 million years ago within a shallow sea which extended across much of northwest Europe.
The geology of East Sussex is defined by the Weald–Artois anticline, a 60 kilometres (37 mi) wide and 100 kilometres (62 mi) long fold within which caused the arching up of the chalk into a broad dome within the middle Miocene, [1] which has subsequently been eroded to reveal a lower Cretaceous to Upper Jurassic
The Weald–Artois Anticline continues some 40 miles (64 km) further south-eastwards under the Straits of Dover, and includes the Boulonnais of France. [ 4 ] Many important fossils have been found in the sandstones and clays of the Weald, including, for example, Baryonyx .
The Weald–Artois Anticline is a major anticline which outcrops in southeast England and northern France. It was formed from the late Oligocene to middle Miocene , during the Alpine orogeny . North America
The peripheral areas are mostly of softer sandstones and clays and these form the gentler rolling landscape of Low Weald, of which the Vale of Kent is a part. [1] The Weald-Artois Anticline continues some 65 km (40 mi) further south-eastwards under the Straits of Dover, and includes the Boulonnais of France.
Weald Anticline: England Weald-Artois Anticline: England Wealden Anticline: England Brenchley & Rawson 2006 Weeton Anticline: Lancashire England E&W 67 Welbeck Trough: England E&W 112 Werrington Anticline: England Smith et al. 2005 Wessington Anticline: England E&W 112 Westbury Anticline: England E&W 264 West Mainland Anticline: Shetland ...