The BGS Lexicon of Named Rock Units — Result Details
Holt Heath Sand and Gravel [Obsolete: use HHSG]
Computer Code: | HOHE | Preferred Map Code: | notEntered |
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Status Code: | Full | ||
Age range: | Wolstonian Stage (QO) — Wolstonian Stage (QO) | ||
Lithological Description: | [Obsolete: use HHSG] Gravel, sand and pebbly sand, variably cross-bedded to parallel laminated; clasts mostly Triassic quartzites with flints; Lake District, Scottish and Malvernian rocks. | ||
Definition of Lower Boundary: | Where sand/gravel overlies bedrock or glacial deposits. | ||
Definition of Upper Boundary: | The present dry terrace flat. | ||
Thickness: | Up to 10 m. | ||
Geographical Limits: | River Severn valley from Bridgnorth to Woolaston. | ||
Parent Unit: | none recorded or not applicable | ||
Previous Name(s): | Main Terrace [Obsolete Name and Code: Use HOHE, MNT]
(-1599)
Main Terrace Deposits [River Severn] [Obsolete Name and Code: Use HOHE] (-2245) Main Terrace Deposits (River Severn) [Obsolete Name And Code: See HOHE] (MNT) |
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Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
Type Section | Holt Heath. | ||
Reference(s): | |||
Maddy, D, Green, C P, Lewis, S G and Bowen, D Q. 1995. Pleistocene Geology of the lower Severn Valley, UK. Quaternary Science Reviews, Vol 14, 209 - 222. | |||
Barclay, W J, Ambrose K, Chadwick, R A and Pharaoh, T C. 1997. Geology of the country around Worcester. Memoir of the British Geological Survey, Sheet 199 (England and Wales). | |||
Wills, L J, 1938. The Pleistocene development of the Severn from Bridgnorth to the Sea. Quarterly Journal of the Geological Society, 94, 161-242. | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
E199 E216 E234 E182 E167 |