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1.—Dalradian Structure and Stratigraphy of the Northern Loch Awe District, Argyllshire

Published online by Cambridge University Press:  06 July 2012

G. J. Borradaile
G. J. Borradaile
Affiliation:
Department of Geology, The University of Durham.
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Synopsis

A structural profile has been constructed for part of the Caledonian fold belt from a map of the Dalradian rocks of the Loch Awe District of Argyllshire. The profile includes the Loch Awe Syncline (Bailey 1913) and the root to the Tay Nappe (Shackleton 1958). The Loch Awe Syncline is shown to be a compound syncline of F1 age, congruent with the Tay Nappe. The F1 structures are accompanied by a penetrative deformation and modified by secondary structures. The stratigraphic succession, which includes the Upper Dalradian and part of the Middle Dalradian, has been reconstructed from the profiles and is shown to have originally been about 10 km thick. The prominent features are the development of a basin to the south-east of the present area in the Late Pre-Cambrian and the extrusion of a 2 km thick basic submarine lava pile in Lower Cambrian times. A subsequent basic submarine lava sequence was extruded in Late Lower Cambrian or Middle Cambrian time and represents the topmos lithostratigraphic group yet recorded from the Dalradian of S.W. Argyll.

Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 69 , Issue 1 , 1973 , pp. 1 - 21
Copyright
Copyright © Royal Society of Edinburgh 1973

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References

Allison, A., 1940. Loch Awe Succession and Tectonics, Kilmartin, Tayvallich and Dana. Q. Jl Geol. Soc. Loud., 96, 423–449.Google Scholar
Bailey, E. B., 1913. The Loch Awe Syncline. Q. Jl Geol. Soc. Lond., 69, 280–305.Google Scholar
Bailey, E. B., 1917. The Islay Anticline. Q. Jl Geol. Soc. Lond., 72, 132–159.CrossRefGoogle Scholar
Ball, T. K., 1965. Element distribution in two epidiorite sills from the Central Grampian Highlands of Scotland. Geol. Mag., 102, 93–105.Google Scholar
Barrow, G., Wilson, J. G. and Cunningham-Craig, E. H., 1905. Geology of the country around Blair Atholl, Pitlochry and Aberfeldy. Mem. Geol. Surv. U.K.Google Scholar
Borradaile, G. J., 1970. The west limb of the Loch Awe Syncline and the associated cleavage fan. Geol. Mag., 107, 459–467.Google Scholar
Borradaile, G. J., 1972. Variably oriented co-planar primary folds. Geol. Mag., 109, 89–98.Google Scholar
Borradaile, G. J., Roberts, J. L. and Scrutton, C. T., 1971. Supposed Corals from the Dalradian of Scotland. ·Nature, Lond., (Phys. Sci.), 229, 179–181.Google Scholar
Borradaile, G. J., Roberts, J. L. and Treagus, J. E., 1971. The Dalradian rocks of the Loch Nant District. Scott. J. Geol., 7, 79–85.Google Scholar
Clough, C. T., 1897. The Geology of Cowal. Mem. Geol. Surv. U.K.Google Scholar
Cummins, W. A. and Shackleton, R. M., 1955. The Ben Lui Recumbent Syncline. Geol. Mag., 92, 353–363.CrossRefGoogle Scholar
Downie, C., Lister, T. R., Harris, A. L. and Fettes, D. J., 1971. A palynological investigation of the Dalradian Rocks of Scotland. Rep. Inst. Geol. Sci., 71/9.Google Scholar
Fleuty, M. J., 1964 a. Tectonic Slides. Geol. Mag., 101, 452–455.Google Scholar
Fleuty, M. J., 1964 b. The Description of Folds. Proc. Geol. Ass., 75, 461–492.Google Scholar
Flinn, D., 1956. On the deformation of the Funzie Conglomerate, Fetlar, Shetland. J. Geol., 64, 480–505.Google Scholar
Flinn, D., 1965. On the symmetry principle and the deformation ellipsoid. Geol. Mag., 102, 36–45.Google Scholar
Harris, A. L., 1962. Dalradian Geology of the Highland Border near Callander. Bull. Geol. Surv. Gt Br., 19, 1–15.Google Scholar
Hill, J. B., 1905. The geology of Mid-Argyll. Mem. Geol. Surv. U.K.Google Scholar
Johnson, M. R. W. and Harris, A. L., 1967. Dalradian—?Arenig relations in parts of the Highland Border, Scotland, and their significance in the chronology of the Caledonian Orogeny. Scott. J. Geol., 3, 1–16.Google Scholar
Johnstone, G. S., 1966. The Grampian Highlands (3rd edition). Br. Reg. Geol.Google Scholar
Van De Kamp, P. C., 1970. The Green Beds of the Scottish Dalradian. J. Geol., 78, 281–303.Google Scholar
Kilburn, C., Pitcher, W. S. and Shackleton, R. M., 1965. The Stratigraphy and origin of the Portaskaig Boulder Bed Series (Dalradian). Geol. J., 4, 343–360.Google Scholar
Knill, J. L., 1959. Palaeocurrents and Sedimentary Facies of the Dalradian Metasediments of the Craignish-Kilmelfort District. Proc. Geol. Ass., 70, 273–282.Google Scholar
Knill, J. L., 1963. A sedimentary history of the Dalradian Series. In Johnson, M. R. W. and Stewart, F. H. (eds.) The British Caledonides, 99–120. Edinburgh and London: Oliver and Boyd.Google Scholar
Kynaston, H., 1908. The Geology of the Country near Oban and Dalmally. Mem. Geol. Surv. U.K.Google Scholar
Pantin, H. M., 1956. The petrology of the Ben Vrackie epidiorites and their contact rocks. Trans. Geol. Soc. Glasg., 22, 48–79.Google Scholar
Phillips, F. C., 1930. Some Mineralogical and Chemical changes included by Progressive Metamorphism in the Green Bed Group of the Scottish Dalradian. Mineralog. Mag., 22, 239–256.Google Scholar
Pringle, J., 1940. The Discovery of Cambrian Trilobites in the Highland Border Rocks near Callander, Perthshire. Rep. Br. Ass. Advmt Sci. 1, 252.Google Scholar
Ramsay, J. G., 1967. Folding and Fracturing of Rocks. New York: McGraw-Hill.Google Scholar
Ramsay, J. G., 1961. The Effects of folding upon the orientation of sedimentary structures. J. Geol., 69, 84–100.Google Scholar
Rast, N., 1958. Metamorphic history of the Schichallion Complex, Perthshire. Trans. Roy. Soc. Edinb., 63, 413–431.Google Scholar
Rast, N., 1963. Structure and Metamorphism of the Dalradian rocks of Scotland. In Johnson, M. R. W. and Stewart, F. H. (eds.), The British Caledonides, 123–142. Edinburgh and London: Oliver and Boyd.Google Scholar
Roberts, J. L., 1966. Sedimentary affiliations and stratigraphic correlation of the Dalradian rocks in the S.W. Highlands of Scotland. Scott. J. Geol., 2, 200–223.Google Scholar
Roberts, J. L. and Treagus, J. E., 1964. A Re-interpretation of the Ben Lui Fold. Geol. Mag., 101, 512–516.CrossRefGoogle Scholar
Shackleton, R. M., 1958. Downward-facing structures of the Highland Border. Q. Jl Geol. Soc. Lond., 113, 361–392.Google Scholar
Sturt, B. A., 1961. The geological structure of the area South of Loch Tummel. Q. Jl Geol. Soc. Lond., 117, 131–156.Google Scholar
Sutton, J. and Watson, J., 1955. The Deposition of the Upper Dalradian Rocks of the Banffshire Coast. Proc. Geol. Ass., 66, 101–133.Google Scholar
Stubblefield, C. J., 1956. Cambrian palaeogeography in Britain. C.R. 20th Int. Geol. Congr., 1, 1–43.Google Scholar
Treagus, J. E., 1964. Notes on the structure of the Ben Lawers Synform. Geol. Mag., 101, 260–269.Google Scholar
Treagus, J. E., 1969. The Kinlochlaggan Boulder Bed. Proc. Geol. Soc. Lond., 1654, 55–60.Google Scholar
Treagus, J. E. and S. H., , 1971. The structures of the Ardsheal Peninsula, Argyll, their age and regional significance. Geol. J., 7, 335–346.Google Scholar
Voll, G., 1960. New Work in Petrofabrics. Lpool Manchr Geol. J., 2, 503–567.Google Scholar