Lyell Collection
Journal of the Geological Society
Lyell Centre  |   Lyell Collection  |   Subscriptions   |   Geological Society  |   Email alerts  |   Online bookshop  |   Help

Keywords:
Author:
Advanced search>>
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Request Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by WHALLEY, J. S.
Right arrow Articles by LLOYD, G. E.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation
Journal of the Geological Society; 1986; v. 143; issue.1; p. 83-88;
DOI: 10.1144/gsjgs.143.1.0083
© 1986 Geological Society of London

Article

Tectonics of the Bude Formation, north Cornwall—the recognition of northerly directed décollement

J. S. WHALLEY & G. E. LLOYD1,1

Department of Geology, Portsmouth Polytechnic, Burnaby Road, Portsmouth PO1 3QL, UK
1Department of Metallurgy and Materials, University of Birmingham, Birmingham B15 2TT, UK

The Upper Carboniferous Bude Formation of North Cornwall and Devon underwent deformation, beginning shortly after its deposition, which resulted in a complex geometry of folding and thrusting. The deformation initially exploited slumped beds as décollement horizons and resulted in a significant northerly translation of thrust sheets. The development of chevron folds, for which the area is famous, commenced at this stage but continued, causing folding of thrust planes and cleavages. During the deformation the dominant sense of thrust movement switched from a northerly to a southerly direction and this is interpreted as the effect of backthrusting associated with the northwards migration of the deformation front.





This article has been cited by other articles:


Home page
 Geological Society, London, Special PublicationsHome page
M. W. Anderson and A. Morris
The puzzle of axis-normal magnetic lineations in folded low-grade sediments (Bude Formation, SW England)
Geological Society, London, Special Publications, 2004; 238: 175 - 190.
[Abstract] [PDF]

Home page
 Geological Society, London, Special PublicationsHome page
H. De Wall and L. N. Warr
Oblique magnetic fabric in siderite-bearing pelitic rocks of the Upper Carboniferous Culm Basin, SW England: an indicator for palaeo-fluid migration?
Geological Society, London, Special Publications, 2004; 238: 493 - 507.
[Abstract] [PDF]

Home page
 Journal of the Geological SocietyHome page
P. M. BURGESS and R. A. GAYER
Late Carboniferous tectonic subsidence in South Wales: implications for Variscan basin evolution and tectonic history in SW Britain
Journal of the Geological Society, 2000; 157: 93 - 104.
[Abstract] [Full Text] [PDF]

Home page
 Journal of the Geological SocietyHome page
R. D. SEAGO and T. J. CHAPMAN
The confrontation of structural styles and the evolution of a foreland basin in central SW England
Journal of the Geological Society, 1988; 145: 789 - 800.
[Abstract] [PDF]

Home page
 Journal of the Geological SocietyHome page
G. E. LLOYD and J. S. WHALLEY
The modification of chevron folds by simple shear: examples from north Cornwall and Devon
Journal of the Geological Society, 1986; 143: 89 - 94.
[Abstract] [PDF]