Whitby Mudstone
| Whitby Mudstone | |
|---|---|
| Stratigraphic range: Toarcian (Falciferum-Bifrons) ~ | |
East Cliff near Whitby | |
| Type | Geological formation |
| Unit of | Lias Group |
| Sub-units | Members:
|
| Underlies | Inferior Oolite or Ravenscar Groups Or Blea Wyke, Dogger or Bridport Sand Formations |
| Overlies | Marlstone Rock or Cleveland Ironstone Formations |
| Thickness | Up to 120 m (390 ft) |
| Lithology | |
| Primary | Mudstone |
| Other | Siltstone |
| Location | |
| Coordinates | 54°30′N 0°36′W / 54.5°N 0.6°W |
| Approximate paleocoordinates | 42°30′N 9°18′E / 42.5°N 9.3°E |
| Region | Yorkshire, Worcestershire |
| Country | England |
| Extent | Cleveland & Worcester Basins & East Midlands Shelf |
| Type section | |
| Named for | Whitby |
| Location | Coastal exposures from Hawsker Bottoms to Whitby Harbour |
The Whitby Mudstone is a Toarcian (Early Jurassic; Falciferum-Bifrons in regional chronostratigraphy) geological formation in Yorkshire and Worcestershire, England. The formation, part of the Lias Group, is present in the Cleveland and Worcester Basins and the East Midlands Shelf.