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Whitby Mudstone
Geological formation in Yorkshire, UK / From Wikipedia, the free encyclopedia
The Whitby Mudstone is a Toarcian (Early Jurassic; Falciferum-Bifrons in regional chronostratigraphy) geological formation in Yorkshire and Worcestershire, England.[1] The formation, part of the Lias Group, is present in the Cleveland and Worcester Basins and the East Midlands Shelf.
Quick Facts Type, Unit of ...
Whitby Mudstone | |
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Stratigraphic range: Toarcian (Falciferum-Bifrons) ~183–176 Ma | |
![]() 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 | 54.5°N 0.6°W / 54.5; -0.6 |
Approximate paleocoordinates | 42.5°N 9.3°E / 42.5; 9.3 |
Region | Yorkshire, Worcestershire |
Country | ![]() |
Extent | Cleveland & Worcester Basins & East Midlands Shelf |
Type section | |
Named for | Whitby |
Location | Coastal exposures from Hawsker Bottoms to Whitby Harbour |
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