. "More or less sharp boundary between interbedded fine-grained limestone and calcareous mudstone, overlain by purer, off-white or yellowish peloidal packstone, wackestone or grainstone of the White Limestone Formation."@en . . "Marly Beds [Obsolete: use HMB]"@en . . "HMB"@en . . "stable"@en . . "165.3"^^ . . "Well bedded fine-grained limestone and calcareous mudstone, 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."@en . "Hampen Marly Beds [Obsolete: use HMB]"@en . . "About 4-11 m; 8.96 m at type locality."@en . "Calcareous mudstone and limestone with subsidiary mudstone and sandstone. Stratified bedrock. Occurs onshore. Deposited during the Bathonian Age (Jurassic Period) (168.2-165.3 Ma BP)."@en . . . "Limestone with subordinate interbedded calcareous mudstone ('marl'); limestone 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."@en . "Hampen Formation"@en . . "168.2"^^ . . "Hampen Formation"@en . "Hampen Marly Formation [Obsolete: use HMB]"@en .