The BGS Lexicon of Named Rock Units — Result Details
Sneaton (Halite) Formation
| Computer Code: | SNH | Preferred Map Code: | notEntered |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Guadalupian Epoch (PUG) — Lopingian Epoch (PUL) | ||
| Lithological Description: | Variously almost pure halite, halite with anhydrite laminae, halite with potash minerals and halite with abundant fine-grained red clastic material. | ||
| Definition of Lower Boundary: | Drawn at base of halite with anhydrite laminae where it rests on anhydrite of the Sherburn Formation. | ||
| Definition of Upper Boundary: | Drawn at upward passage from halite to red siltstones of the Sleights Formation or to the Roxby Formation. | ||
| Thickness: | Approx. 55 metres, (thins westwards). | ||
| Geographical Limits: | Eastern England. (Yorkshire Province). | ||
| Parent Unit: | Zechstein Group (ZG) | ||
| Previous Name(s): | Upper Halite
(UPHL)
Upper Halite (UPHL) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Sneaton (E4) Borehole, Sneaton, Nr. Whitby, North Yorkshire. | ||
| Reference(s): | |||
| Smith, D B, 1971. Possible displacive halite in the Upper Permian Evaporite Group of north-east Yorkshire. Sedimentology, Vol.17, 221-232. | |||
| Pattison, J. 1986. A revised nomenclature for Upper Permian strata in eastern England. "In" Harwood, G M and Smith, D B. (Editors). The English Zechstein and Related Topics. Geological Society Special Publication No.22, 9-17. | |||
| Smith, D B, Brunstrom, R G W, Manning, D I, Simpson, S and Shotton, F W. 1974. A correlation of Permian rocks in the British Isles. Geological Society of London Special Report No. 5. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E043 | |||