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An interpretation of the gravity anomaly at Warlingham, Surrey

Published online by Cambridge University Press:  01 May 2009

P. Kearey  and
A. M. Rabae
P. Kearey
Affiliation:
Department of Geology, University of Bristol, Bristol BS8 1RJ, UK
A. M. Rabae
Affiliation:
Department of Geology, University of Bristol, Bristol BS8 1RJ, UK
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Abstract

An interpretation of the negative gravity anomaly at Warlingham, Surrey, controlled by a seismic reflection profile and several boreholes, suggest that it may be caused by a wedge-shaped body of lowdensity Upper Palaeozoic rocks. The seismic reflection data suggest that the upper boundary of the body may be thrust-controlled and originated during Variscan compression. The location of the thrusting appears to be controlled by the southern margin of the stable London Platform. Comparison with similar structures of this type elsewhere suggests that the Variscan Front in this area lies just to the north of Warlingham.

Type
Articles
Information
Geological Magazine , Volume 133 , Issue 5 , September 1996 , pp. 619 - 624
Copyright
Copyright © Cambridge University Press 1996

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References

references

Bless, M. J. M., Bouckaert, J., & Paproth, E. 1980. Environmental aspects of some pre-Permian deposits in NW Europe. In Pre-Permian around the Brabant Massif in Belgium, the Netherlands and Germany (eds Bless, M. J. M., and Paproth, E.), pp. 3–13. Mededelingen Rijks Geologische Dienst no. 32–1.Google Scholar
Busby, J. P., Kimbell, G. S., & Pharaoh, T. C. 1993. Integrated geophysical/geological modelling of the Caledonian and Precambrian basement of southern England. Geological Magazine 130, 593–604.CrossRefGoogle Scholar
Chadwick, R. A 1993. Aspects of basin inversion in southern Britain. Journal of the Geological Society, London 150, 311–22.CrossRefGoogle Scholar
Chadwick, R. A. 1985. Introduction. In Atlas of Onshore Sedimentary Basins in England and Wales: Post- Carboniferous Tectonics and Stratigraphy (ed. Whittaker, A.), pp. 1–5. Blackie.Google Scholar
Chadwick, R. A., Kenolty, N., & Whittaker, A. 1983. Crustal structure beneath southern England from deep seismic reflection profiles. Journal of the Geological Society, London 140, 893–911.CrossRefGoogle Scholar
Chadwick, R., Pharaoh, T., & Smith, N. J. P. 1989. Lower crustal heterogeneity beneath Britain from deep seismic reflection data. Journal of the Geological Society, London 146, 617–30.CrossRefGoogle Scholar
Donato, J. A. 1988. Possible Variscan thrusting beneath the Somerton Anticline, Somerset. Journal of the Geological Society, London 145, 431–8.CrossRefGoogle Scholar
Falcon, N. L., & Tarrant, L. H. 1950. The gravitational and magnetic exploration of parts of the Mesozoic-covered areas of south-central England. Quarterly Journal of the Geological Society of London 106, 141–70.CrossRefGoogle Scholar
Meissner, R., Bartelsen, H., & Murawski, H. 1981. Thinskinned tectonics in the northern Rhenish Massif, Germany. Nature 290, 399–401.CrossRefGoogle Scholar
Penn, I. E., Chadwick, R. A., Holloway, S., Roberts, G., Pharaoh, T. C, Allsop, J. M., Hulbert, A G., & Burns, I M 1987. Principal features of the hydrocarbon prospectivity of the Wessex-Channel Basin, UK. In Petroleum geology of North West Europe (eds Brooks, J., and Glennie, K.), pp. 109–18. Graham –66.Google Scholar
Rabae, A. M., & Kearey, P. 1993. Evidence for the location of the Variscan Front near Warlingham, Surrey, from gravity and seismic data. Abstract, UK Geophysical Assembly. Joint Association of Geophysics Newsletter 3, 18.Google Scholar
Smalley, S., & Westbrook, G. K. 1982. Geophysical evidence concerning the southern boundary of the London Platform beneath the Hog's Back, Surrey. Journal of the Geological Society, London 139, 139–46.CrossRefGoogle Scholar
Whittaker, A. 1985. Atlas of Onshore Sedimentary Basins in England and Wales: Post-Carboniferous Tectonics and Stratigraphy. Blackie.Google Scholar
Worssam, B. C., & Ivimey-Cook, H C 1971. The stratigraphy of the Geological Survey borehole at Warlingham, Surrey. Bulletin of the Geological Survey of Great Britain 36, 1–178.Google Scholar
Ziegler, P. A. 1982. Geological atlas of Western and Central Europe. Shell Internationale Petroleum Maatschappij B.V.Google Scholar
Ziegler, P. A. 1989. Evolution of Laurussia: a study in late Palaeozoic plate tectonics. Kluwer Academic Publishers.Google Scholar