The BGS Lexicon of Named Rock Units — Result Details
Eagle Moor Sand and Gravel Member
| Computer Code: | EMSG | Preferred Map Code: | symb |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Mid Pleistocene (QPM) — Mid Pleistocene (QPM) | ||
| Lithological Description: | Predominantly cold-phase sands and gravels that underlie the Eagle Moor Terrace. Dominated by rounded pebbles of "Bunter" quartz/quartzite with subordinate subangular flint (typically 25% in the Type Area), etc. Clayey and poorly sorted. In type area occurs as hill-top outliers falling from c.36m OD near Newark (c.25m above Trent floodplain) towards the Lincoln Gap, being at c.+32m OD at Eagle Moor and possibly descending more rapidly to the east. Outliers upstream in the Loughborough district 30m+ above Trent floodplain. Correlated with the Martin Sand and Gravel Member (Trent Valley Formation), east of the Lincoln Gap. River terrace deposits. Middle Pleistocene (MI Stage 12 or 10). | ||
| Definition of Lower Boundary: | Unconformable, commonly channelled base, resting on pre-Quaternary bedrock or locally, east of Eagle Moor, on the Skellingthorpe Clay Member of the Wolston Formation. | ||
| Definition of Upper Boundary: | Ground surface. | ||
| Thickness: | 0 to c. 6 m; typically c. 2 to 3 m. | ||
| Geographical Limits: | Newark on Trent to Lincoln Gap (British Geological Survey sheets 113, 114, 126, 126; see Brandon and Sumbler, 1991, Figure 1) with probable outliers upstream in the Uttoxeter-Derby area (sheets 140, 141; included in Trent, Trent-Derwent and Soar Valley formations) and possibly elsewhere. | ||
| Parent Unit: | Trent Valley Formation (TRVA) | ||
| Previous Name(s): | Older river sand and gravel
(ORSG)
Eagle Moor Member [Obsolete Name and Code: Use EMSG] (-3387) Glacial sand and gravel [Obsolete Name and Code] (GSG) Hilton Terrace Deposits [Obsolete Name and Code: Use EMSG] (-2172) Older river sand and gravel (ORSG) Eagle Moor Sand and Gravel [Obsolete Name and Code: Use EMSG] (-233) Upper Hilton Terrace (in part) [Obsolete Name and Code: Use EMSG] (-234) |
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| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Area | Eagle Moor. Brandon and Sumbler, 1988; 1991; Berridge et al., 1999. | ||
| Reference(s): | |||
| Stoker, M S, McMillan, A A and Waters, C N. Quaternary Stratigraphical Chart: Southern Britain. British Geological Survey, 1 poster. | |||
| Carney, J N, Ambrose, K and Brandon, A. 2002. Geology of the Loughborough district. Sheet explanation of the British Geological Survey, Sheet 141 (England and Wales). | |||
| Brandon, A, and Sumbler, M G. 1988. An Ipswichian fluvial deposit at Fulbeck, Lincolnshire and the chronology of the Trent terraces. Journal of Quaternary Science, Vol. 3, 127-133. | |||
| Clayton, K M. 1957. Differentation of the glacial drifts of the East Midlands. East Midlands Geographer, Vol.1, 31-40. | |||
| Gozzard, J R. 1976. The sand and gravel resources of the country east of Newark upon Trent, Nottinghamshire: description of 1:25 000 resource sheet SK86 and part of SK76. Mineral Assessment Report, Institute of Geological Sciences, No.20. | |||
| Howard, A J. 1992. The Quaternary Geology and geomorphology of the area between Newark and Lincoln. Unpublished PhD Thesis, University of Derby. | |||
| Pocock, T I. 1929, The Trent valley in the glacial period. Zeitschrift fur Gletscherkunde, Vol.17. 302-318. | |||
| Straw, A. 1963. The Quaternary evolution of the lower and middle Trent. East Midlands Geographer, Vol.3, 171-189. | |||
| Straw A and Clayton, K M. 1979. The Geomorphology of the British Isles: Eastern and Central England. (London: Methuen). | |||
| Berridge, N G, Pattison, J, Samuel, M D A, Brandon, A, Howard, A S, Pharaoh, T C, and Riley, N J. 1999. Geology of the Grantham district. Memoir of the British Geological Survey, sheet 127 (England and Wales). | |||
| Clayton, K M. 1953. The glacial chronology of part of the middle Trent basin. Proceedings of the Geologists' Association, Vol.64. 198-207. | |||
| Edwards, W N, 1967. Geology of the country around Ollerton (2nd edition). Memoir of the Geological Survey of Great Britain, sheet 113 (England and Wales). | |||
| Jackson, I. 1977. The sand and gravel resources of the country west and south of Lincoln, Lincolnshire: description of 1:25 000 resource sheets SK95 and part of SK96 and SK97. Mineral Assessment Report, Institute of Geological Sciences, No.27. | |||
| Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. | |||
| Swinnerton, H H. 1937. The problem of the Lincoln Gap. Transactions of the Lincolnshire Naturalists' Union, Vol.9, 145-153. | |||
| Brandon A, and Sumbler, M G. 1991. The Balderton Sand and Gravel: pre-Ipswichian cold stage fluvial deposits near Lincoln, England. Journal of Quaternary Science, Vol. 6. 117-138. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E126 E127 E141 E113 E114 E140 | |||