Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-23T23:56:47.939Z Has data issue: false hasContentIssue false

A large temporary exposure in the Lower Silurian of Shropshire

Published online by Cambridge University Press:  01 May 2009

L. R. M. Cocks
Affiliation:
Department of Palaeontology, British Museum (Natural History), London, S.W.7.
G. Walton
Affiliation:
5 Bush Close, Albrighton, Shropshire.

Summary

Fresh information on the ecology, sedimentology and structure of the Lower Silurian (Llandovery) Purple Shale of Shropshire has emerged as a result of large-scale excavations. The griestoniensis Zone is proved, and correlated by shelly fossils with the C5 substage of the type Llandovery area. Current directions indicate a source area up-slope to the south-east. Most of the fauna constitutes a Clorinda community, but towards the top of the sequence a Clorinda/Stricklandia mixture is developed.

Type
Articles
Copyright
Copyright © Cambridge University Press 1968

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Cocks, L. R. M. 1967. Depth patterns in Silurian marine communities. Marine Geol., 5, 379382.CrossRefGoogle Scholar
Downie, C. 1963 “Hystrichospheres” (acritarchs) and spores of the Wenlock Shales (Silurian) of Wenlock, England. Palaeontology, 6, 625652.Google Scholar
Hollingworth, S. E., Taylor, J. H. & Kellaway, G. A. 1944. Large-scale superficial structures in the Northampton ironstone field. Q. Jl geol. Soc. Lond., 100, 144.CrossRefGoogle Scholar
Jones, O. T. 1925. The geology of the Llandovery district: Part 1—The Southern Area. Q. Jl geol. Soc. Lond., 81, 344388.Google Scholar
Pocock, R. W. 1926. The basalt of Little Wenlock (Shropshire). Summ. Progr. geol. Surv. U.K. (for 1925), 140156.Google Scholar
Pocock, R. W. 1930. The Petalocrinus Limestone horizon at Woolhope (Herefordshire). Q. Jl geol. Soc. Lond., 86, 5063.CrossRefGoogle Scholar
Pocock, R. W. Whitehead, T. H., Wedd, C. B. & Robertson, T. 1938. Shrewsbury District, including the Hanwood Coalfield. Mem. geol. Surv. U.K. 152, 1297.Google Scholar
Potter, P. E. & Pettijohn, F. J. 1963. Paleocurrents and Basin Analysis. Academic Press, New York, 296 pp.CrossRefGoogle Scholar
Skempton, A. W. 1954. Soil Mechanics in relation to geology. Proc. Yorks. geol. Soc., 29, 3362.CrossRefGoogle Scholar
Whittard, W. F. 1928. The stratigraphy of the Valentian rocks of Shropshire. The Main Outcrop. Q. Jl geol. Soc. Lond., 83 (for 1927), 737759.CrossRefGoogle Scholar
Whittard, W. F. 1952. A geology of South Shropshire. Proc. Geol. Ass., 63, 143197.CrossRefGoogle Scholar
Wills, L. J. 1924. The development of the Severn Valley in the neighbourhood of Ironbridge and Bridgnorth. Q. Jl geol. Soc. Lond., 80, 274314.CrossRefGoogle Scholar
Ziegler, A. M. 1965. Silurian Marine Communities and their environmental significance. Nature Lond., 207, 270–2.CrossRefGoogle Scholar
Ziegler, A. M. 1966. The Silurian brachiopod Eocoelia hemisphaerica (J. de C. Sowerby) and related species. Palaeontology, 9, 523543.Google Scholar
Ziegler, A. M. Cocks, L. R. M. & Bambach, R. K. 1968. The composition and structure of Silurian marine communities. Lethaia, 127.Google Scholar