Middleton Formation
| Middleton Formation | |
|---|---|
| Stratigraphic range: Middle Permian ~ | |
Middleton Formation exposures are found in the Eastern Cape of South Africa | |
| Type | Geological formation |
| Unit of | Adelaide Subgroup, Beaufort Group |
| Underlies | Balfour Formation |
| Overlies | Abrahamskraal Formation |
| Thickness | up to 300 m (980 ft) |
| Lithology | |
| Primary | Mudstone, siltstone |
| Other | Sandstone |
| Location | |
| Coordinates | 32°56′56″S 25°48′58″E / 32.949°S 25.816°E |
| Approximate paleocoordinates | 62°42′S 29°18′W / 62.7°S 29.3°W |
| Region | Eastern Cape |
| Country | South Africa |
The Middleton Formation is a geological formation that extends through the Northern Cape, Western Cape, and Eastern Cape provinces of South Africa. It overlies the lower Abrahamskraal Formation, and is the eastern correlate, East of 24ºE, of the Teekloof Formation. Outcrops and exposures of the Middleton Formation range from Graaff-Reinet in the Eastern Cape onwards. The Middleton Formation's type locality lies near the small hamlet, Middleton, approximately 25 km south of Cookhouse. Other exposures lie in hillsides along the Great Fish River in the Eastern Cape. The Middleton Formation forms part of the Adelaide Subgroup of the Beaufort Group, which itself forms part of the Karoo Supergroup.