Cromer Forest Bed
Geological formation in Norfolk, England / From Wikipedia, the free encyclopedia
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The Cromer Forest-bed Formation, sometimes known as the Cromer Forest Bed, is a geological formation in Norfolk, England. It consists of river gravels, estuary and floodplain sediments predominantly silt, sand, and muds as well as peat along the coast of northern Norfolk.[1] It is the type locality for the Cromerian Stage of the Pleistocene between 0.8 and 0.5 million years ago.[2] The deposit itself range varies in age from about 0.8 to 0.5 million years ago. It is about 6-to-8-metre (20 to 26 ft) thick and is exposed in cliff section near the town of West Runton.
Quick Facts Type, Unit of ...
Cromer Forest-bed Formation | |
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Stratigraphic range: Early Middle Pleistocene 0.8–0.5 Ma | |
Type | Geological formation |
Unit of | Dunwich Group |
Sub-units | Sheringham Member, Runton Member, West Runton Member, and Bacton Member |
Underlies | Middle Pleistocene glacial deposits |
Overlies | Wroxham Crag Formation or unconformity with Chalk Group |
Thickness | 6-to-8-metre (20 to 26 ft) |
Lithology | |
Primary | sands and silts |
Other | peat, mud, silty marl |
Location | |
Coordinates | 52.941°N 1.253°E / 52.941; 1.253 |
Region | Norfolk |
Country | England |
Type section | |
Named for | Cromer |
Named by | Clement Reid |
Location | The coast of North Norfolk from Weybourne to Happisburgh |
Year defined | 1882 |
Country | England |
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