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Structural controls in the western offshore Midland Valley of Scotland: implications for Late Palaeozoic regional tectonics

Published online by Cambridge University Press:  01 February 2013

W. G. E. CALDWELL  and
G. M. YOUNG
W. G. E. CALDWELL
Affiliation:
Department of Earth Sciences, Biology and Geology Building, Western University, London, Ontario, CanadaN6A 5B7
G. M. YOUNG*
Affiliation:
Department of Earth Sciences, Biology and Geology Building, Western University, London, Ontario, CanadaN6A 5B7
*
*Author for correspondence: gyoung@uwo.ca
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Abstract

New detailed mapping and related field studies, together with re-assessment of prior investigations, have revealed that three groups of faults, orientated broadly NE, N and NW, have been the primary controls on stratigraphical, structural and geomorphological evolution in the upper Firth of Clyde since their initiation by proto-Variscan stresses in Late Devonian time. Extended control has been achieved through repeated episodic reactivation, during which existing lines of fracture were rejuvenated and others of similar orientation initiated. Movements on two (if not all three) groups of faults persisted until middle Palaeogene time at least. The faults have been augmented by two sets of irregularly distributed, open, plunging folds, broadly N–S and E–W in their axial orientations. Some N–S folds may be attributed to oblique or strike-slip movement on reactivated caledonoid faults, others to intermittent transpression, probably in Namurian–Westphalian times, affecting mainly the northeastern Midland Valley but stretching beyond the massif of the Clyde Lava Plateau to register a weakened presence as far W as the upper Firth. The N–S folds and dextral strike-slip movements on some faults may be far-field expressions of the Uralian Orogeny, whereas earlier, sinistral displacements on NE faults and the development of small, later and less-significant E–W folds may be related to different phases of long-lived Variscan compression from the S.

Keywords

faultsfoldsreactivationDevonianCarboniferousCaledonianVariscan
Type
Original Articles
Information
Geological Magazine , Volume 150 , Issue 4 , July 2013 , pp. 673 - 698
Copyright
Copyright © Cambridge University Press 2013 

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References

Allen, M. B., Alsop, G. I. & Zhemcheshnikov, V. G. 2001. Dome and basin refolding and transpressive inversion along the Kazakstan Fault System, southern Kazakstan. Journal of the Geological Society, London 158, 83–95.Google Scholar
Anderson, E. M. 1951. The Dynamics of Faulting and Dyke Formation with Applications to Britain, 2nd Edition. Edinburgh: Oliver and Boyd.Google Scholar
.Anderson, J. G. C. 1947. The geology of the Highland Border: Stonehaven to Arran. Transactions of the Royal Society of Edinburgh 60, 171–93.Google Scholar
Bell, B. R. & Williamson, I. T. 2002. Tertiary igneous activity. In The Geology of Scotland, 4th Edition (ed. Trewin, N. H.), pp. 371–401. London: The Geological Society.Google Scholar
Bluck, B. J. 1978. Sedimentation in a late orogenic basin: the Old Red Sandstone of the Midland Valley of Scotland. In Crustal Evolution in Northwestern Britain and Adjacent Regions (eds Bowes, D. R. & Leake, B. E.), pp. 249–78. Geological Journal, Special Issue no. 10.Google Scholar
Bluck, B. J. 1980. Evolution of a strike-slip, fault-controlled basin, Upper Old Red Sandstone, Scotland. In Sedimentation in Oblique-Slip Mobile Zones (eds Reading, H. G. & Balance, P. F.), pp. 63–78. International Association of Sedimentologists, Special Publication no. 4.Google Scholar
Bluck, B. J. 2000. Old Red Sandstone basins and alluvial systems of the Midland Valley of Scotland. In New Perspectives on the Old Red Sandstone (eds Friend, P. F. & Williams, B. P. J.), pp. 417–37. Geological Society of London, Special Publication no. 180.Google Scholar
Bott, M. H. P. & Masson-Smith, D. 1960. A gravity survey of the Criffel Granodiorite and the New Red Sandstone deposits near Dumfries. Proceedings of the Yorkshire Geological Society 32, 317–32.CrossRefGoogle Scholar
Boué, A. 1820. Essai geologique sur l'Ecosse. Paris: Ve. Courcier, 519 pp.Google Scholar
British Geological Survey. 1985. Solid Geology of the Clyde Sheet, 55°N/6°W, 1:250,000 Series. Keyworth, Nottingham: British Geological Survey.Google Scholar
British Geological Survey (Scotland). 1987. Geological Map of Arran (Special District), Solid Edition, 1:50,000 Series. Keyworth, Nottingham: British Geological Survey.Google Scholar
British Geological Survey. 1990. Greenock, Scotland, Sheet 30W and Part of 29E. Solid Edition, 1:50 000 Series. Keyworth, Nottingham: British Geological Survey.Google Scholar
British Geological Survey. 1996 a. Tectonic Map of Britain, Ireland, and Adjacent Areas. 1:1 500 000 (compilers Pharaoh, T. C., Morris, J. H., Long, G. B. & Ryan, R. D.). Keyworth, Nottingham: British Geological Survey.Google Scholar
British Geological Survey. 1996 b. Campbeltown, Scotland, Sheet 12, Solid and Drift Geology, 1:50,000 Provisional Series. Keyworth, Nottingham: British Geological Survey.Google Scholar
British Geological Survey. 2006. Scotland, Irvine, Sheet 22W and Part of 21E. Bedrock, 1:50,000 Geology Series. Keyworth, Nottingham: British Geological Survey.Google Scholar
British Geological Survey. 2008. Scotland, Dunoon and Millport, Sheet 29E and Part 21E, Bedrock and Superficial Deposits, 1:50,000 Geology Series. Keyworth, Nottingham: British Geological Survey.Google Scholar
Browne, M. A. E., Dean, M. T., Hall, L. H. S., McAdam, A. D., Monro, S. K. & Chisholm, J. L. 1999. A Lithostratigraphical Framework for the Carboniferous Rocks of the Midland Valley of Scotland. British Geological Survey, Research Report RR/99/07, 28 pp.Google Scholar
Browne, M. A. E., Monaghan, A. A., Ritchie, J. G., Underhill, J. R., Hooper, M. D., Smith, R. A. & Akhurst, M. C. 2003. Revised tectono-stratigraphical framework for the Carboniferous of the Midland Valley of Scotland, UK. XV International Congress on Carboniferous and Permian Stratigraphy, Utrecht, The Netherlands, 10–16 August 2003, 68–70.Google Scholar
Browne, M. A. E., Smith, R. A. & Aitken, A. M. 2002. Stratigraphical Framework for the Devonian (Old Red Sandstone) Rocks of Scotland South of a Line from Fort William to Aberdeen. British Geological Survey, Research Report RR/01/04, 67 pp.Google Scholar
Bryce, J. 1872. The Geology of Arran and the Other Clyde Islands, with an Account of the Botany, Natural History, and Antiquities, 4th Edition. Glasgow: William Collins, Sons, and Co., 354 pp.Google Scholar
Buist, D. S., Ineson, P. R. & Mitchell, J. G. 1979. Isotopic age determinations on the composite sill and associated olivine dolerite, South Bute. Scottish Journal of Geology 15, 257–62.CrossRefGoogle Scholar
Burke, K. & Dewey, J. F. 1973. Plume-generated triple junctions: key indicators in applying plate tectonics to old rocks. Journal of Geology 81, 406–33.CrossRefGoogle Scholar
Caldwell, W. G. E. 1973. The Cumbrae Islands. In Geology of the Glasgow District (ed. Bluck, B. J.), pp. 141–56. Glasgow: Geological Society of Glasgow, Robert MacLehose and Co. Ltd for the University Press.Google Scholar
Caldwell, W. G. E. 1975. The geological history of the Cumbrae Islands. In Millport and the Cumbraes: A History and Guide (ed. Campbell, J. R. D.), pp. 111–16, 120–1. Glasgow: Gilmour and Lawrence Ltd.Google Scholar
Caldwell, W. G. E. & Young, G. M. 2011. The Early Carboniferous volcanic outliers of Little Cumbrae and South Bute: implications for westward attenuation of the Clyde Lava Plateau. Earth and Environmental Science Transactions of the Royal Society of Edinburgh 102, 59–76.CrossRefGoogle Scholar
Caldwell, W. G. E. & Young, G. M. 2012 (for 2011). Early Carboniferous minor intrusions of the Clyde Plateau: new data from the Cumbrae islands. Earth and Environmental Science Transactions of the Royal Society of Edinburgh 102, 227–51.CrossRefGoogle Scholar
Cameron, L. B. & Stephenson, D. 1985. British Regional Geology, The Midland Valley of Scotland, 3rd Edition. London: HMSO, 172 pp.Google Scholar
Chew, D. M., Daly, J. S., Magna, T., Page, L. M., Kirkland, C. L., Whitehouse, M. J. & Lam, R. 2010. Timing of ophiolite obduction in the Grampian Orogen. Geological Society of America Bulletin 122, 1787–99.CrossRefGoogle Scholar
Coward, M. P. 1993. The effect of late Caledonian and Variscan continental escape tectonics on basement structure, Palaeozoic basin kinematics, and subsequent Mesozoic basin development in NW Europe. In Petroleum Geology of Northwest Europe: Proceedings of the 4th Conference (ed. Parker, J. R.), pp. 1095–108. Geological Society of London, Petroleum Geology Conference Series, vol. 4.Google Scholar
Dean, M. T., Browne, M. A. E., Waters, C. N. & Powell, J. H. 2011. A Lithostratigraphical Framework for the Carboniferous Successions of Northern Great Britain (Onshore). British Geological Survey, Research Report RR/10/07, 165 pp.Google Scholar
Deegan, C. E. 1978. Interpretation of shallow seismic data on Sheet 55°N/6°W, with comments on the IGS seaborne magnetic results. In The Solid Geology of the Clyde Sheet (55°N/6°W) (eds McLean, A. C. & Deegan, C. E.), pp. 49–64. Report of the Institute of Geological Sciences 73/9. London: HMSO.Google Scholar
Emeleus, C. H. & Bell, B. R. 2005. British Regional Geology. The Palaeogene Volcanic Districts of Scotland, 4th Edition. Keyworth, Nottingham: British Geological Survey.Google Scholar
Emeleus, C. H. & Gyopari, M. C. 1992. British Tertiary Igneous Province. Geological Conservation Review Series no. 4. London: Chapman and Hall, 259 pp.Google Scholar
England, R. W. 1992. The genesis, ascent, and emplacement of the Northern Arran Granite, Scotland: implications for granitic diapirism. Geological Society of America Bulletin 104, 606–14.Google Scholar
Falconer, J. D. 1907. The geology of Ardrossan. Transactions of the Royal Society of Edinburgh 45 (3), 601–10.Google Scholar
Francis, E. H. 1978 a. Igneous activity in a fractured craton: Carboniferous volcanism in northern Britain. In Crustal Evolution in Northwestern Britain and Adjacent Regions (eds Bowes, D. R. & Leake, B. E.), pp. 279–96. Geological Journal Special Issue. Liverpool: Seel House Press.Google Scholar
Francis, E. H. 1978 b. The Midland Valley as a rift in connection with the Late Palaeozoic European Rift System. In Tectonics and Geophysics of Continental Rifts (eds Ramberg, I. B. & Neumann, E.-R.), pp. 133–47. Dordrecht: Reidel.Google Scholar
Friburg, M., Juhlin, C., Beckholmen, M., Petrov, G. A. & Green, A. G. 2002. Palaeozoic tectonic evolution of the Middle Urals in the light of the ESRU seismic experiments. Journal of the Geological Society, London 159, 295–306.CrossRefGoogle Scholar
Geikie, A. 1897. The Ancient Volcanoes of Great Britain, I. London & New York: McMillan, 477 pp.Google Scholar
Geological Survey of Great Britain (Scotland). 1948. Geological Survey of Great Britain (Scotland), Sheet 14, 4 miles = 1 inch. Solid Geology. (Reduced from the One Inch Maps of the Geological Survey). Southampton: Ordnance Survey of Great Britain.Google Scholar
Geological Survey of Scotland. 1897. Sheet 21, Arran, 1 in. = 1 mile. Solid Geology. Southampton: Ordnance Survey of Great Britain.Google Scholar
George, T. N. 1960. The stratigraphical evolution of the Midland Valley. Transactions of the Geological Society of Glasgow 24, 32–107.Google Scholar
Goodenough, K. M., Stephenson, D. & Loughlin, S. C. 2003. Tectonic setting and evolution. In Carboniferous and Permian Igneous Rocks of Great Britain North of the Variscan Front (eds Stephenson, D., Loughlin, S. C., Millward, D., Waters, C. N. & Williamson, I. T.), pp. 15–21. Geological Conservation Review Series no. 27. Peterborough: Joint Nature Conservation Committee.Google Scholar
Guion, P. D., Gutteridge, P. & Davies, S. J. 2000. Carboniferous sedimentation and volcanism on the Laurentian margin. In Geological History of Britain and Ireland (eds Woodcock, R. N. & Strachan, R.), pp. 227–57. Oxford: Blackwell Science.Google Scholar
Gunn, W. 1903. Description of North Arran, South Bute, and the Cumbraes. In The Geology of North Arran, South Bute, and the Cumbraes, with parts of Ayrshire and Kintyre (eds Gunn, W., Geikie, A., Peach, B. N. & Harker, A.), pp. 1–9, 12–16, 18–34, 37–63, 67–101, 128–36, 139–40, 142–4, 146–54. Memoir of the Geological Survey, Scotland. Glasgow: James Hedderwick and Sons for HMSO.Google Scholar
Hall, J. 1974. A seismic reflection survey of the Clyde Plateau lavas in north Ayrshire and Renfrewshire. Scottish Journal of Geology 9, 253–79.CrossRefGoogle Scholar
Hall, J. 1978. Seismic refraction studies in the Firth of Clyde. In The Solid Geology of the Clyde Sheet (55°N/6°W) (eds McLean, A. C. & Deegan, C. E.), pp. 45–9. Institute of Geological Sciences, Report 78/9. London: HMSO.Google Scholar
Haszeldine, R. S. 1988. Crustal lineaments in the British Isles: their relationship to Carboniferous basins. In Sedimentation in a Synorogenic Basin Complex: The Upper Carboniferous of Northwest Europe (eds Besly, B. M. & Kelling, G.), pp. 53–68. Glasgow: Blackie & Son.Google Scholar
Hill, J. & Buist, D. 1994. A Geological Field Guide to the Island of Bute, Scotland. London: The Geologists’ Association, 89 pp.Google Scholar
Hill, J. & Buist, D. 2006. Reading the Landscape of Bute: A Geological Field Guide. Rothesay: Buteshire Natural History Society, 91 pp.Google Scholar
Kennedy, W. Q. 1958. The tectonic evolution of the Midland Valley of Scotland. Transactions of the Geological Society of Glasgow 23, 106–33.Google Scholar
Leeder, M. R. 1982. Upper Palaeozoic basins of the British Isles – Caledonian inheritance versus Hercynian plate marginal processes. Journal of the Geological Society, London 139, 479–91.Google Scholar
Leeder, M. R. 1988. Recent developments in Carboniferous geology: a critical review with implications for the British Isles and N.W. Europe. Proceedings of the Geologists’ Association 99, 73–100.CrossRefGoogle Scholar
Lytteil, W. 1886. Guide Book to the Cumbraes, Firth of Clyde, Including Chapters on Wemyss Bay, Largs and Fairlie. Edinburgh: Menzies and Co.Google Scholar
Macdonald, R. & Fettes, D. J. 2007. The tectonomagmatic evolution of Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences 97, 213–95.Google Scholar
McCallien, W. J. 1927. Preliminary account of the post-Dalradian geology of Kintyre. Transactions of the Geological Society of Glasgow 18, 40–126.CrossRefGoogle Scholar
McCallien, W. J. & Anderson, R. B. 1930. The Carboniferous sediments of Kintyre. Transactions of the Royal Society of Edinburgh 56 (3), 599–621.Google Scholar
McLean, A. C. 1961. A gravity survey of the Sanquhar coalfield. Proceedings of the Royal Society of Edinburgh 68, 112–27.Google Scholar
McLean, A. C. 1978. Evolution of fault-controlled ensialic basins in northwestern Britain. In Crustal Evolution in Northwestern Britain and Adjacent Regions (eds Bowes, D. R. & Leake, B. E.), pp. 325–46. Geological Journal, Special Issue 10.Google Scholar
McLean, A. C. & Deegan, C. E. 1978. A synthesis of the solid geology of the Firth of Clyde region. In The Solid Geology of the Clyde Sheet (55°N/6°W) (eds McLean, A. C. & Deegan, C. E.), pp. 93–114. Institute of Geological Sciences, Report 78/9. London: HMSO.Google Scholar
McLean, A. C., Deegan, C. E. & Wren, A. E. 1978. Introduction. In The Solid Geology of the Clyde Sheet (55°N/6°W) (eds McLean, A. C. & Deegan, C. E.), pp. 1–5. Institute of Geological Sciences, Report 78/9. London: HMSO.Google Scholar
McLean, A. C. & Walker, J. 1978. Gravity and magnetic surveys of the upper Firth of Clyde and Bute. In The Solid Geology of the Clyde Sheet (55°N/6°W) (eds McLean, A. C. & Deegan, C. E.), pp. 29–42. Institute of Geological Sciences, Report 78/9. London: HMSO.Google Scholar
McLean, A. C. & Wren, A. K. 1978. Gravity and magnetic studies of the lower Firth of Clyde. In The Solid Geology of the Clyde Sheet (55°N/6°W) (eds McLean, A. C. & Deegan, C. E.), pp. 7–27. Institute of Geological Sciences, Report 78/9. London: HMSO.Google Scholar
Menning, M., Weyer, D., Drozdzewski, G., Vanameron, H. J. W. & Wendt, L. 2000. A Carboniferous time-scale 2000: discussion and use of geological parameters as time indicators from central and western Europe. Geologisches Jahrbuch A156, 3–44.Google Scholar
Monaghan, A. A. & Parrish, R. R. 2006. Geochronology of Carboniferous-Permian magmatism in the Midland Valley of Scotland: implications for regional tectonomagmatic evolution and the numerical time-scale. Journal of the Geological Society, London 163, 15–28.Google Scholar
Monaghan, A. A. & Pringle, M. S. 2004. 40Ar/39Ar geochronology of Permo-Carboniferous volcanism in the Midland Valley, Scotland. In Permo-Carboniferous Magmatism and Rifting in Europe (eds Wilson, M., Neumann, E.-R., Davies, G. R., Timmerman, M. J. & Larson, B. T.), pp. 219–31. Geological Society of London, Special Publication no. 223.Google Scholar
Monro, S. K. 1985. Sedimentation controls in the Midland Valley of Scotland – the Dalry Basin case study. Compte Rendu 10e Congrès International de Stratigraphie et de Géologie du Carbonifère, Madrid 3, 343–53.Google Scholar
Monro, S. K. 1999. Geology of the Irvine District. Memoir of the British Geological Survey, Sheet 22W and part of Sheet 21E (Scotland). London: HMSO, 140 pp.Google Scholar
Mykura, W. 1967. The Upper Carboniferous rocks of south-west Ayrshire. Bulletin of the Geological Survey of Great Britain 16, 66–109.Google Scholar
Paterson, I. B. & Hall, I. H. S. 1986. Lithostratigraphy of the Late Devonian and Early Carboniferous Rocks in the Midland Valley of Scotland. British Geological Survey, Report 18. London: HMSO, 14 pp.Google Scholar
Paterson, I. B., Hall, I. H. S. & Stephenson, D. 1990. Geology of the Greenock District. Memoir of the British Geological Survey, Sheet 30W and part of Sheet 29E (Scotland). London: The Stationery Office, 69 pp.Google Scholar
Patterson, E. M. 1949. The Old Red Sandstone rocks of the West Kilbride-Largs district, Ayrshire. Transactions of the Geological Society of Glasgow 21, 207–36.CrossRefGoogle Scholar
Patterson, E. M. 1952. Notes on the tectonics of the Greenock-Largs uplands and the Cumbraes. Transactions of the Geological Society of Glasgow 21, 430–5.Google Scholar
Puchkov, V. N. 1997. Structure and geodynamics of the Uralian orogen. In Orogeny through Time (eds Burg, J.-P. & Ford, M.), pp. 201–36. Geological Society of London, Special Publication no. 121.Google Scholar
Qureshi, I. R. 1970. A gravity survey in the region of the Highland Boundary Fault in Scotland. Quarterly Journal of the Geological Society, London 125, 481–502.Google Scholar
Read, W. A. 1988. Controls on Silesian sedimentation in the Midland Valley of Scotland. In Sedimentation in a Synorogenic Basin Complex: The Upper Carboniferous of Northwest Europe (eds Besly, B. M. & Kelling, G.), pp. 222–41. Glasgow and London: Blackie & Son.Google Scholar
Read, W. A., Browne, M. A. E., Stephenson, D. & Upton, B. G. J. 2002. Carboniferous. In The Geology of Scotland, 4th Edition (ed. Trewin, N. H.), pp. 51–299. London: The Geological Society.Google Scholar
Richey, J. E., Anderson, E. M. & MacGregor, A. G. 1930. The Geology of North Ayrshire. Memoir of the Geological Survey of Scotland, 2nd Edition. Edinburgh: HMSO.Google Scholar
Richey, J. E. 1939. The dykes of Scotland. Transactions of the Edinburgh Geological Society 13, 292–435.Google Scholar
Ritchie, J. D., Johnson, H., Browne, M. A. E. & Monaghan, A. A. 2003. Late Devonian-Carboniferous tectonic evolution within the Firth of Forth, Midland Valley, as revealed from 2D seismic reflection data. Scottish Journal of Geology 39, 121–34.CrossRefGoogle Scholar
Rippon, J., Read, W. A. & Park, R. G. 1996. The Ochil Fault and the Kincardine Basin: key structures in the tectonic evolution of the Midland Valley of Scotland. Journal of the Geological Society, London 153, 573–87.CrossRefGoogle Scholar
Saunders, A. D., Fitton, J. G., Kerr, A. C., Norry, M. J. & Kent, R. W. 1997. The North Atlantic Igneous Province. In Large Igneous Provinces (eds Mahoney, J. J. & Coffin, M. F.), pp. 45–94. American Geophysical Union, Geophysical Monograph vol. 100. Washington, DC, USA.Google Scholar
Smedley, P. L. 1986. Petrochemistry of Dinantian Volcanism in Northern Britain. Ph.D. thesis, University of Edinburgh, Edinburgh, UK. Published thesis.Google Scholar
Smedley, P. L. 1988. The geochemistry of Dinantian volcanism in south Kintyre, and the evidence for provincialism in the southern Scottish mantle. Contributions to Mineralogy and Petrology 99, 374–84.CrossRefGoogle Scholar
Stark, J. 1927. The red sandstones of Toward. Transactions of the Geological Society of Glasgow 17 (2), 169–72.CrossRefGoogle Scholar
Stedman, C. 1988. Namurian E1 tectonics and sedimentation in the Midland Valley of Scotland: rifting versus strike-slip influence. In Sedimentation in a Synorogenic Basin Complex: The Upper Carboniferous of Northwest Europe (eds Besly, B. M. & Kelling, G.), pp. 242–54. Glasgow: Blackie & Son.Google Scholar
Stephenson, D. 1990. Clyde Plateau Volcanic Formation (Chapter 5) and Lower Carboniferous intrusions (Chapter 6). In Geology of the Greenock District (Paterson, I. B., Hall, I. H. S. & Stephenson, D.). Memoir of the British Geological Survey, Sheet 30W and part of Sheet 29E (Scotland). London: HMSO.Google Scholar
Stephenson, D., Mendum, J. R., Fettes, D. J. & Leslie, A. G. 2013. The Dalradian rocks of Scotland: an introduction. Proceedings of the Geologists’ Association 124, 3–82.CrossRefGoogle Scholar
Timmerman, M. J., Heeremans, M., Kirstein, L. A., Larsen, B. T., Spencer-Dunworth, E. A. & Sundvoll, B. 2009. Linking changes in tectonic style with magmatism in northern Europe during the late Carboniferous to latest Permian. Tectonophysics 473, 375–90.CrossRefGoogle Scholar
Trewin, N. H. & Rollin, K. E. 2002. Geological history and structure of Scotland. In The Geology of Scotland, 4th Edition (ed. Trewin, N. H.), pp. 1–25. London: The Geological Society.Google Scholar
Tyrrell, G. W. 1917. Some Tertiary dykes of the Clyde area. Geological Magazine 4, 305–15, 350–6.CrossRefGoogle Scholar
Tyrrell, G. W. 1918. The igneous geology of the Cumbrae Islands, Firth of Clyde. Transactions of the Geological Society of Glasgow 16 (2), 244–74.Google Scholar
Tyrrell, G. W. 1928. The Geology of Arran. Memoir of the Geological Survey of Scotland. Edinburgh: HMSO.Google Scholar
United Kingdom National Hydrographic Service. 2007. Admiralty Leisure Charts, SC 5610, Firth of Clyde, 2nd Edition. Taunton: U.K. National Hydrographic Service.Google Scholar
Upton, B. G. J. 1982. Carboniferous and Permian volcanism in the stable foreland. In Igneous Rocks of the British Isles (ed. Sutherland, D. S.), pp. 255–75. New York: John Wiley & Sons.Google Scholar
Upton, B. G. J., Stephenson, D., Smedley, P. M., Wallis, S. M. & Fitton, J. G. 2004. Carboniferous and Permian magmatism in Scotland. In Permo-Carboniferous Magmatism and Rifting in Europe (eds Wilson, M., Neumann, E.-R., Davies, G. R., Timmerman, M. J., Heeremans, M. & Larsen, B. T.), pp. 195–218. Geological Society of London, Special Publication no. 223.Google Scholar
Underhill, J. R., Monaghan, A. A. & Browne, M. A. E. 2008. Controls on structural styles, basin development, and petroleum prospectivity in the Midland Valley of Scotland. Marine and Petroleum Geology 25, 1000–22.CrossRefGoogle Scholar
Waters, C. N., Browne, M. A. E., Dean, M. T. & Powell, J. H. 2007. Lithostratigraphical Framework for Carboniferous Successions of Great Britain (Onshore). British Geological Survey, Research Report RR/07/01, 60 pp.Google Scholar
Wilson, H. E. & Robbie, J. A. 1966. The Geology of the Country around Ballycastle. Memoir of the Geological Survey of Northern Ireland (to accompany Sheet 8). Belfast: HMSO, 370 pp.Google Scholar
Woodcock, N. H. & Underhill, J. R. 1987. Emplacement-related fault patterns around the Northern Granite, Arran, Scotland. Geological Society of America Bulletin 98, 515–27.Google Scholar
Young, G. M. & Caldwell, W. G. E. 2011 a. Stratigraphical context and geochemistry of Tournaisian (pre-Clyde Plateau Volcanic Formation) tuffs, Great Cumbrae, western Midland Valley of Scotland. Scottish Journal of Geology 47, 21–32.CrossRefGoogle Scholar
Young, G. M. & Caldwell, W. G. E. 2011 b. Stratigraphy and geochemistry of the Early Carboniferous Clyde Plateau lavas in south Bute, Midland Valley of Scotland. Geological Magazine 148, 597–618.CrossRefGoogle Scholar
Young, G. M. & Caldwell, W. G. E. 2011 c. Early Carboniferous stratigraphy in the Firth of Clyde area: new information from the Isle of Bute. Scottish Journal of Geology 47, 143–56.CrossRefGoogle Scholar
Young, G. M. & Caldwell, W. G. E. 2012. The Northeast Arran Trough, the Corrie conundrum, and the Highland Boundary Fault in the Firth of Clyde, SW Scotland. Geological Magazine 149, 578–89.CrossRefGoogle Scholar