Hampen Formation
Middle Jurassic (Bathonian)
PERIOD |
GROUP |
FORMATION |
Jurassic |
Great Oolite |
Hampen |
Lithology
Limestones with subordinate interbedded marls; limestones characteristically grey to brown, thinly bedded, fine- to very fine-grained, well-sorted, ooidal grainstone to packstone, commonly slightly sandy or silty, with small-scale cross-bedding.
Upper Boundary
More or less sharp boundary with purer, off-white or yellowish peloidal packstone, wackestone or grainstone of the White Limestone Formation. .
Lower Boundary
Limestone and marl (as in Lithological Description), resting sharply on cross-bedded coarse-grained ooidal grainstone of the Taynton Limestone Formation or on mudstone/sandy limestone of the Fuller's Earth Formation.
Representative Sites
Daglingworth Quarry
Farmington Quarry
Information on lithology and boundaries taken from the British Geological Survey Lexicon of Named Rock Units |
