Mid-Carboniferous unconformity
Stratigraphic range: Namurian, Carboniferous, c.326–313 Ma

PreЄ

Crags below Knaresborough Castle. There is an unconformity between mid-Carboniferous sandstones at the road level and late Permian grits and limestones above.

Type| Geological formation
Underlies| Mississippian-aged rocks
Overlies| Pennsylvanian-aged rocks
Lithology
Primary| Sandstone
Other| Conglomerate

The Mid-Carboniferous unconformity is an unconformity located in many countries, such as England (Namurian Series), Thailand, The United States and more. It has been dated to the Namurian, Middle Carboniferous (c.326-313 Ma) and the formation is often noted as being similar to the mid-Carboniferous eustatic event.[1]

## References

1. ↑ A Geological Time Scale 2004 (3rd ed.). Cambridge University Press. ISBN 978-0521786737.

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