Tortworth Beds

Silurian (Telychian)

Lithology
Weakley calcareous, thin-bedded siltstone, mudstone and sandstone with occasional layers of impure limestone.

Upper Boundary
Unproven.

Lower Boundary
Abrupt contact with basalts of the Upper Trap.

Representative Sites
No Accessible Exposure

Information on lithology and boundaries taken from the British Geological Survey Lexicon of Named Rock Units
and BGS Memoirs.