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Variably oriented co-planar primary folds

Published online by Cambridge University Press:  01 May 2009

G. J. Borradaile*
Affiliation:
Department of Geology, Science Laboratories, South Road, Durham

Summary

Curved and other variably oriented minor F1 folds with a common axial–planar cleavage are described from the Dalradian of the South-West Scottish Highlands. An explanation for the varying orientations is offered in terms of progressive deformation following the arguments of Flinn (1962) and Ramsay (1967).

Type
Research Article
Copyright
Copyright © Cambridge University Press 1972

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References

Borradaile, G. J. 1971. The West Limb of the Loch Awe Syncline and the Associated Cleavage Fan. Geol. Mag. 107, 459–67.CrossRefGoogle Scholar
Brenchley, P. J. & Treagus, J. E. 1970. The Stratigraphy and Structure of the Ordovician Rocks between Courtown and Kilmichael Point, Co. Wexford. Proc. R. Irish Acad. 69B, 83102 Google Scholar
Flinn, D. 1962. On Folding during Three-dimensional Progressive Deformation. Q. Jl geol. Soc. Lond. 118, 385433.CrossRefGoogle Scholar
Flinn, D. 1964. The Metamorphic Rocks of the Southern Part of the Mainland of Shetland. Geol. J. 5, 251–90.Google Scholar
Flinn, D. 1965a.On the Symmetry Principle and the Deformation Ellipsoid. Geol. Mag. 102, 3645.CrossRefGoogle Scholar
Flinn, D. 1965b. Deformation in Metamorphism. In Pitcher, W. S. and Flinn, G. W. (Eds): Controls of Metamorphism, pp. 4672. Oliver and Boyd, Edinburgh and London.Google Scholar
Johnson, M. R. W. & Harris, A. L. 1967. Dalradian—?Arenig relations in parts of the Highland Border, Scotland. Scott. J. Geol. 3, 116.CrossRefGoogle Scholar
King, B. C. & Rast, N. 1956. The small Scale Structures of South-Eastern Cowal, Argyllshire. Geol. Mag. 93, 185–95.CrossRefGoogle Scholar
Knill, J. L. & Knill, D. C. 1958. Some Discordant Fold Structures from the Dalradian of Craignish, Argyll and Rossguill, Co. Donegal. Geol. Mag. 95, 497510.Google Scholar
Knopf, E. B. & Ingerson, E. 1938. Structural Petrology. Mem. Geol. Soc. Am. 6.Google Scholar
Mellis, O. 1942. Gefugediagramme in stereographischer Projektion. Min. Pet. Mitt. 53, 330–53.Google Scholar
Ramsay, J. G., 1967. Folding and Fracturing of Rocks. McGraw Hill, New York. 568 pp.Google Scholar
Rast, N. 1963. Structure and Metamorphism of the Dalradian Rocks of Scotland. In Johnson, M. R. W. & Stewart, F. H. (Eds): The British Caledonides, pp. 123–42. Oliver and Boyd, Edinburgh and London.Google Scholar
Roberts, J. L. 1959. Fold Structures in the Dalradian Rocks of Knapdale, Argyllshire. Geol. Mag. 96, 221–9.CrossRefGoogle Scholar
Roberts, J. L. 1966. Sedimentary Affiliations Stratigraphic Correlation of the Dalradian Rocks in the South-West Highlands of Scotland. Scott. J. Geol. 2, 200–23.CrossRefGoogle Scholar
Shackleton, R. M. 1958. Downward-facing Structures of the Highland Border. Q. Jl geol. Soc. Lond. 113 (for 1957), 361–92.CrossRefGoogle Scholar
Voll, G. 1960. New Work on Petrofabrics. Lpool Mnchr geol. J. 2, 503–67.CrossRefGoogle Scholar
Weiss, L. E. & McIntyre, D. B. 1957. Structural Geometry of Dalradian Rocks at Loch Leven, Scottish Highlands. J. Geol. 65, 575602.Google Scholar