The BGS Lexicon of Named Rock Units — Result Details
Rowe Chalk Formation
| Computer Code: | ROWE | Preferred Map Code: | ROWE |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Campanian Age (KC) — Maastrichtian Age (KM) | ||
| Lithological Description: | White, flint-bearing chalk with sporadic marl bands. | ||
| Definition of Lower Boundary: | The base is taken at a basal flint band of a thick unit of flint-bearing chalk above the thick flint-free unit of the Flamborough Formation; the base of the formation is recognizable within downhole geophysical logs by a change in log trace characteristics. | ||
| Definition of Upper Boundary: | The upper boundary is the upper limit of the Chalk Group onshore, where unconformably overlain by Quaternary deposits. | ||
| Thickness: | About 80m preserved. | ||
| Geographical Limits: | Present only in eastern Holderness, Yorkshire (from approximately Barmston near Bridlington, to Withernsea; see Sumbler, M G, 1999, Fig.1), where it is entirely concealed beneath thick superficial deposits. | ||
| Parent Unit: | White Chalk Subgroup (WHCK) | ||
| Previous Name(s): | Flamborough Formation [Obsolete Name and Code: Use FCK, ROWE]
(-4039)
Rowe Formation [Obsolete Name and Code: Use ROWE] (-2400) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Reference Section | Atwick No.1 (1972) borehole (TA15 SE7), c.37m (base of superficial deposits) to c.78m (top of Flamborough Formation) depth. Lower part of formation. | ||
| Reference Section | Atwick No 2 (1973) borehole (TA15 SE9), c. 41 to 122 m depth. Thickest known onshore succession. | ||
| Reference(s): | |||
| Lott, G K and Knox, R W O'B. 1994. 7. Post-Triassic of the Southern North Sea. In: Knox, R W O'B and Cordey, W G (eds.) Lithostratigraphic nomenclature of the UK North Sea. British Geological Survey, Nottingham. | |||
| Waters, C N, Smith, K, Hopson, P M, Wilson, D, Bridge, D M, Carney, J N, Cooper, A H, Crofts, R G, Ellison, R A, Mathers, S J, Moorlock, B S P, Scrivener, R C, McMillan, A A, Ambrose, K, Barclay, W J, and Barron, A J M. 2007. Stratigraphical Chart of the United Kingdom: Southern Britain. British Geological Survey, 1 poster. | |||
| Sumbler, M G. 1996. The stratigraphy of the Chalk Group in Yorkshire, Humberside and Lincolnshire. British Geological Survey Technical Report WA/96/26C. | |||
| Sumbler, M G. 1999. The stratigraphy of the Chalk Group in Yorkshire and Lincolnshire. British Geological Survey Technical Report WA/99/02. | |||
| Hopson, P M. 2005. A stratigraphical framework for the Upper Cretaceous Chalk of England and Scotland, with statements on the Chalk of Northern Ireland and the UK Offshore Sector. British Geological Survey Research Report RR/05/01 102pp. ISBN 0 852725175 | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E072 | |||