Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-08T00:21:31.445Z Has data issue: false hasContentIssue false

Coccolith-rich marker bands in the English Kimmeridge Clay

Published online by Cambridge University Press:  01 May 2009

R. W. Gallois
Affiliation:
Institute of Geological Sciences, 5 Princes Gate, South Kensington, London SW7 1QN
A. W. Medd
Affiliation:
Institute of Geological Sciences, Ring Road, Halton, Leeds, LS15 8TQ

Summary

Thin coccolith-rich bands, in which coccoliths make up a major part of the rock, have been recorded at 11 horizons in the Kimmeridge Clay of Yorkshire, Lincolnshire, Norfolk, Surrey and Wiltshire and also in cliff sections at and adjacent to Kimmeridge Bay, Dorset. It seems likely that at least nine of these bands form persistent markers throughout southern and eastern England. The coccolithophorid assemblages are discussed and some species of Stradnerlithus are systematically described.

Type
Articles
Copyright
Copyright © Cambridge University Press 1979

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

Black, M. 1971. Coccoliths from the Speeton Clay and the Sutterby Marl. Proc. Yorks. geol. Soc. 38, 381424.CrossRefGoogle Scholar
Black, M. 1973. British Lower Cretaceous Coccoliths. I. Gault Clay. Part 2 Palaeontogr. Soc. (Monogr.), 127 (2), 49112.Google Scholar
Braarud, T., Gaarder, K. R. & Grøntved, J. 1953. The phytoplankton of the North Sea and adjacent waters in May 1948. Rapp. P.-v. Réun. Cons perm. int. Explor. Mer. 133, 187.Google Scholar
Cope, J. C. W. 1974. New information on the Kimmeridge Clay of Yorkshire. Proc. Geol. Ass. 85, 211–21.Google Scholar
Downie, C. 1957. Microplankton from the Kimmeridge Clay. Q. Jl geol. Soc. Lond. 112 (for 1956), 413–34.CrossRefGoogle Scholar
Gallois, R. W. 1976 (a). Kimmeridge Clay oil shale project. In IGS Boreholes 1975. Rep. Inst. geol. Sci. 76/10, 21–4.Google Scholar
Gallois, R. W. 1976 (b). Coccolith blooms in the Kimmeridge Clay and origin of North Sea Oil. Nature, Lond. 259, no. 5543, 473–5.CrossRefGoogle Scholar
Gallois, R. W. & Cox, B. M. 1974. Stratigraphy of the Upper Kimmeridge Clay of the Wash area. Bull. geol. Surv. Gt Br., no. 47, 116.Google Scholar
Gallois, R. W. & Cox, B. M. 1976. The stratigraphy of the Lower Kimmeridgian of eastern England. Proc. Yorks. geol. Soc., 41, 1326.Google Scholar
Jones, D. L. & Plafker, G. 1976. Mesozoic Megafossils from DSDP Hole 327A and Site 330 on the Eastern Falkland Plateau; in Barker, P. F., Dalziel, I. W. D. et al. 1976. Initial Reports of the Deep Sea Drilling Project, vol. 36. Washington.Google Scholar
Moshkovitz, S. & Ehrlich, A. 1976. Distribution of Middle and Upper Jurassic calcareous nannofossils in the northeastern Negev, Israel and in Gebel Maghara, Northern Sinai. Bull. geol. Surv. Israel, no. 69, 147.Google Scholar
Müller, G. & Blaschke, R. 1969. Zur Entstehung des Posidonienschiefers (Lias). Naturwissenschaften 56, 635.Google Scholar
Müller, G. & Blaschke, R. 1971. Coccoliths:important rock-forming elements in bituminous shales of central Europe. Sedimentology 17, 119–24.CrossRefGoogle Scholar
Noël, D. 1973. Nannofossiles calcaires de sediments jurassiques finement lamines. Bull. Mus. Hist. nat. Paris 75 95156.Google Scholar
Rood, A. P., Hay, W. W. & Barnard, T. 1971. Electron microscope studies of Oxford Clay Coccoliths. Eclog. geol. Helv. 64, 245–72.Google Scholar
Stradner, H. & Adamiker, D. 1966. Nannofossilen aus Bohrkernen und ihre elekronen-mikroskopische Bearbeitung. Erdoel-Z. 82, 330–41.Google Scholar
Stradner, H., Adamiker, D. & Maresch, O. 1968. Electron microscope studies on Albian calcareous nannoplankton from Delft 2 and Leidschendam 1 deep wells, Holland. Verh. k. Akad. Wet. 24 (4), 1107.Google Scholar
Wise, S. W. & Wind, F. H. 1976. Mesozoic and Cenozoic calcareousnannofossils recovered by DSDP Leg 36 drilling on the Falkland Plateau, southwest Atlantic sector of the Southern Ocean; in P. F. Barker, I. W. D. Dalziel et al., 1976. Initial Reports of the Deep Sea Drilling Project, vol. 36. Washington.Google Scholar
Worssam, B. C. & Ivimey-Cook, H. C. 1971. The stratigraphy of the Geological Survey Borehole at Warlingham, Surrey. Bull. geol. Surv. Gt Br., no. 36, 1146.Google Scholar