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Volume 3 Number 4
  • E-ISSN: 1365-2117

Abstract

Abstract

The Western Irish Namurian Basin developed in Early Carboniferous times as a result of extension across the Shannon Lineament which probably coincides with the lapetus Suture. During the late Dinantian, axial areas of the NE‐SW elongate trough became deep, whilst shallow‐water limestones were deposited on the flanks. This bathymetry persisted into the Namurian when carbonate deposition ceased. In axial areas, a relatively thick mudstone succession spans earliest Namurian to Chokierian whilst on the northwestern marginal shelf, a thin, condensed Namurian mudstone sequence, in which pre‐Chokierian sediments are apparently absent, rests unconformably on the Dinantian. From late Chokierian to early Kinderscoutian, the basin was filled by sand‐dominated clastic sediments. Sand deposition began in the axial area with deposition of a thick turbidite sequence, the Ross Formation, which is largely equivalent to the condensed mudstone succession on the flanks. Turbidity currents flowed mainly axially towards the north‐east and deposited a sequence lacking well‐defined patterns of vertical bed‐thickness change. Channels and slide sheets occur towards the top of the formation. The turbidite system seems to have lacked well‐defined lobes and stable distributary channels.

Overlying the Ross Formation, the Gull Island Formation shows a decreasing incidence of turbidite sandstones at the expense of increasing siltstones. This formation is characterized by major slides and slumps interbedded with undisturbed strata. In the flanking areas of the basin, the formation is thinner, has only a few turbidites in the sequence above the condensed mudstones and contains only one slide sheet. Overall the formation is interpreted as the deposit of a major prograding slope, the lower part representing a ramp upon which turbidites were deposited, the upper part a highly unstable muddy slope lacking any conspicuous feeder channels through which sand might have been transferred to deeper water. Progradation of the slope appears to have been increasingly from the northwestern flank of the trough which is similar to the direction deduced for the overlying deltaic Tullig cyclothem which completes the initial basin fill.

Whilst several features of the succession can be explained by envisaging the whole sequence as the product of one linked depositional system, the shifting directions of palaeocurrents and palaeoslope raise problems. The switch from axial to lateral supply casts doubt on the strict application of Walther's Law to the total sequence and seems to demand large avulsive shifts of the delta system on the shelf area to the west.

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References

  1. BELT, E. S. (1975) Scottish Carboniferous cyclothem patterns and their paleoenvironmental significance. In: Deltas ‐ Model for Exploration (Ed. by M. L. Broussard), pp. 427–449.
  2. BESLY, B. M.
    & KELLING, G. , (Eds) (1988) Sedimentation in a Synorogenic Basin Complex ‐ the Upper Carboniferous of Northwest Europe. Blackie, Glasgow , 276 pp.
    [Google Scholar]
  3. BISAT, W. S. (1924) The Carboniferous goniatites of north of England and their zones. Proc. Yorks. Geol. Soc.20, 40–124.
    [Google Scholar]
  4. BOUMA, A. H. (1962) Sedimentology of Some Flysch Deposits: a graphical approach to facies interpretation. Elsevier, Amsterdam , 168pp.
    [Google Scholar]
  5. BOYCE, A. J., ANDERTON, R. & RUSSELL, M. J. (1983) Rapid subsidence and early Carboniferous base‐metal mineralization in Ireland. Trans. Inst. Min. Metall. (Sect. B: Appl. Earth Sci.)92, 55–66.
    [Google Scholar]
  6. BRENNAND, T. P. (1965). The Upper Carboniferous (Namurian) stratigraphy north‐east of Castleisland, Co. Kerry. Proc. R. Irish Acad.64, 41–63.
    [Google Scholar]
  7. BROADHURST, F. M. & SIMPSON, I. M. (1967) Sedimentary infilling of fossils and cavities in limestones at Treak Cliff, Derbyshire. Geol. Mag.104, 443–448.
    [Google Scholar]
  8. CHAN, M. A. & DOTT, R. H.JR. (1983) Shelf and deep‐sea sedimentation in Eocene forearc basin, western Oregon ‐ fan or non‐fan ?Bull. Am. Ass. Petrol. Geol.67, 2100–2116.
    [Google Scholar]
  9. COLLER, D. W. (1984) Variscan structures in Upper Palaeozoic rocks of west central Ireland. In: Variscan Tectonics of the North Atlantic Region. (Ed. by D. H. W. Hutton & D. J. Sanderson). Spec. Publ. Geol. Soc. Land. 14, 185–194.
  10. COLLINSON, J. D. (1969) The sedimentology of the Grindslow Shales and the Kinderscout Grit: a deltaic complex in the Namurian of northern England. J. sedim. Petrol.39, 194–221.
    [Google Scholar]
  11. COLLINSON, J. D. (1970) Deep channels, massive beds and turbidity‐current genesis in the Central Pennine Basin. Proc. Yorks. Geol. Soc.37, 495–519.
    [Google Scholar]
  12. COLLINSON, J. D. (1986) Submarine ramp facies model for deltafed, sand‐rich turbidite systems: discussion. Bull. Am. Ass. Petrol. Geol.70, 1742–1743.
    [Google Scholar]
  13. COLLINSON, J. D. (1988) Controls on Namurian sedimentation in the Central Province basins of northern England. In: Sedimentation in a Synorogenic Basin Complex ‐ the Upper Carboniferous of Northwest Europe (Ed. by B. M.Besly & G.Kelling ), pp. 85–101. Blackie, Glasgow .
    [Google Scholar]
  14. CRANS, W., MANDL, G. & HAREMBOURE, J. (1980) On the theory of growth‐faulting – A geomechanical delta model based on gravity sliding. J. Petrol. Geol.2, 265–307.
    [Google Scholar]
  15. DEEGAN, C. E. (1973) Tectonic control of sedimentation at the margin of a Carboniferous depositional basin in Kirkcudbrightshire. Scot. J. Geol.9, 1–28.
    [Google Scholar]
  16. EARP, J. R., MAGRAW, D., POOLE, E. G., LAND, D. A. & WHITEMAN, A. J. (1961) Geology of the country around Clitheroe and Nelson. Mem. Geol. Surv. G. B., Sheet 68.
    [Google Scholar]
  17. FREEMAN, B., KLEMPERER, S. L. & HOBBS, R. W. (1988) The deep structure of northern England and the lapetus Suture Zone from BIRPS deep seismic reflection profiles. J. Geol. Soc. Lond.145, 727–740.
    [Google Scholar]
  18. GAWTHORPE, R. L., GUTTERIDGE, P. & LEEDER, M. R. (1989) Late Devonian and Dinantian basin evolution in southern England and North Wales. In: The Role of Tectonics in Devonian and Carboniferous Sedimentation in the British Isles. (Ed. by R. S. Arthurton & S. C Nolan). Occ. Publ. Yorks. Geol. Soc. 6, 1–23.
  19. GILL, W. D. (1979) Syndepositional sliding and slumping in the West Clare Namurian Basin, Ireland. Spec. Pap. Geol. Surv. Ireland4, 31 pp.
    [Google Scholar]
  20. GILL, W. D. & KUENEN, P. H. (1958) Sand volcanoes on slumps in the Carboniferous of County Clare, Ireland. Q. J. Geol. Soc. Lond.113, 441–460.
    [Google Scholar]
  21. HELLER, P. L. & DICKINSON, W. R. (1985) Submarine ramp facies model for delta‐fed, sand‐rich turbidite systems. Bull. Am. Ass. Petrol. Geol.69, 960–976.
    [Google Scholar]
  22. HILL, P. R. (1984) Sedimentary facies of the Nova Scotian upper and middle continental slope, offshore eastern Canada. Sedimentology, 31, 293–309.
    [Google Scholar]
  23. HODGSON, A. V. (1978) Braided river bedforms and related sedimentary structures in the Fell Sandstone Group (Lower Carboniferous) of North Northumberland. Proc. Yorks. Geol. Soc.41, 509–522.
    [Google Scholar]
  24. HODSON, F. (1954a) The beds above the Carboniferous Limestone in north‐west County Clare, Eire. Q. J. Geol. Soc. Land.109, 259–283.
    [Google Scholar]
  25. HODSON, F. (1954b) The Carboniferous rocks of Foynes Island, Co. Limerick. Geol. Mag.91, 153–160.
    [Google Scholar]
  26. HODSON, F. & LEWARNE, G. C. (1961) A mid‐Carboniferous (Namurian) basin in parts of the counties of Limerick and Clare, Ireland. Q. J. Geol. Soc. Lond.117, 307–333.
    [Google Scholar]
  27. HOLDSWORTH, B. K. & COLLINSON, J. D. (1988) Millstone Grit cyclicity revisited. In: Sedimentation in a Synorogenif Basin Complex – the Upper Carboniferous of Northwest Europe (Ed. by B. M. Besly & G. Kelling), pp. 132–152.
  28. HUBBARD, J. A. E. B. (1966) Facies patterns in the Carrowmoran Sandstone (Visean) of western Co. Sligo, Ireland. Proc. Geol. Ass.77, 233–254.
    [Google Scholar]
  29. JONES, C. M. (1980) Deltaic sedimentation in the Roaches Grit and associated sediments (Namurian R2b) in the south‐west Pennines. Proc. Yorks. Geol. Soc.43, 39–67.
    [Google Scholar]
  30. LEE, A. G. (1988) Carboniferous basin configuration of central and northern England modelled using gravity data. In: Sedimentation in a Synorogenic Basin Complex–the Upper Carboniferous of Northwest Europe. (Ed. by B. M.Besly & G.Kelling ), pp. 68–84. Blackie, Glasgow .
    [Google Scholar]
  31. LEEDER, M. R. (1976) Sedimentary facies and the origins of basin subsidence along the northern margin of the supposed Hercynian Ocean. Tectonophys.36, 167–179.
    [Google Scholar]
  32. LOWE, D. R. (1982) Sediment gravity flows: II. Depositional models with special reference to the deposits of high‐density turbidity currents. J. sedim. Petrol.52, 279–297.
    [Google Scholar]
  33. LUNDEGARD, P. D., SAMUELS, N. D. & PRYOR, W. A. (1985) Upper Devonian turbidite sequence, central and southern Appalachian basin: Contrasts with submarine fan deposits. In: The Catskill Delta. (Ed. by D. L. Woodrow & W. D. Sevon). Spec. Pap. geol. Soc. Am. 201, 107–121.
  34. MACDONALD, D. I. M. & TANNER, P. W. G. (1983) Sediment dispersal patterns in part of a deformed Mesozoic back‐arc basin on South Georgia, South Atlantic. J. sedim. Petrol.53, 83–104.
    [Google Scholar]
  35. MARTINSEN, O. J. (1987) Sedimentology and syndepositional deformation of the Gull Island Formation (Namurian RI), Western Irish Namurian Basin, Ireland–with notes on the basin evolution. Unpublished Cand. Sci. thesis, University of Bergen, Norway, 327pp.
  36. MARTINSEN, O. J. (1989) Styles of syndepositional deformation on a Namurian (Carboniferous) delta slope, Western Irish Namurian Basin, Ireland. In: Deltas–Sites and Traps of Fossil Fuels (Ed. by M. H. Whateley & K. T. Pickering). Spec. Publ. Geol. Soc. Lond. 41, 167–177.
  37. MARTINSEN, O. J. & BAKKEN, B. (1990) Extensional and compressional zones in slumps and slides – examples from the Namurian of County Clare, Ireland. J. Geol. Soc. Lond.146, 153–164.
    [Google Scholar]
  38. MCCABE, P. J. (1978) The Kinderscoutian delta (Carboniferous) of northern England: a slope influenced by density currents. In: Sedimentation in Submarine Canyons, Fans and Trenches (Ed. by D. J.Stanley & G.Kelling ), pp. 116–125. Dowden, Hutchinson and Ross, Stroudsburg , Pa .
    [Google Scholar]
  39. MCKERROW, W. S. & SOPER, N. J. (1989) The Iapetus Suture in the British Isles. Geol. Mag.126, 1–8.
    [Google Scholar]
  40. MILLER, J. & GRAYSON, R. F. (1982) The regional context of Waulsortian facies in northern England. In: Symposium on the Paleoenvironmental Setting and Distribution of the Waulsortian Facies (Ed. by K.Bolton , H. R.Lane & D. V.Lemone ), pp. 17–33. El Paso Geological Society/University of Texas at El Paso, Tx , USA .
    [Google Scholar]
  41. MOORE, G. T., STARKE, G. W., BONHAM, L. C. & WOODBURY, H. O. (1978) Mississippi Fan, Gulf of Mexico – physiography, stratigraphy and sedimentational patterns. In: Framework, Facies, and Oil‐Trapping Characteristics of the Upper Continental Margin (Ed. by A. H. Bouma, G. T. Moore & J. M. Coleman). Stud. in Geol. Ser. Am. Ass. Petrol. Geol. 7, 155–191.
  42. MORRIS, R. C. (1974) Carboniferous rocks of the Ouachita Mountains, Arkansas ‐ a study of facies patterns along the unstable slope and axis of a flysch trough. In: Carboniferous of the south‐eastern United States (Ed. by G. Briggs). Spec. Pap. geol. Soc. Am. 148, 241–281.
  43. MORTON, W. H. (1965) The Carboniferous stratigraphy of the area north‐west of Newmarket, County Cork, Ireland. Sci. Proc. R. Dublin Soc.2A, 47–64.
    [Google Scholar]
  44. MUTTI, E. & RICCI‐LUCCHI, F. (1972). Le torbiditi dell'Appennino settentrionale: introduzione all'analisi di facies. Mem. geol. Soc. Italy11, 161–199.
    [Google Scholar]
  45. NORMARK, W. R., PIPER, D. J. W. & HESS, G. R. (1979) Distributary channels, sandy lobes and meso‐topography of Navy Submarine Fan, California Borderland with application to ancient fan sediments. Sedimentology26, 749–774.
    [Google Scholar]
  46. OAKLEY, K. (1942) British phosphates. Part IV: Occurrences of phosphates in pre‐Cretaceous rocks. Geol. Surv. GB (Wartime Pamphlet)8.
    [Google Scholar]
  47. PHILCOX, M. E. (1961). Namurian shales near Buttevant, North County Cork. Sci. Proc. R. Dublin Soc. A, 205–209.
    [Google Scholar]
  48. PHILLIPS, W. E. A., STILLMAN, C. H. & MURPHY, T. (1976) A Caledonian plate tectonic model. J. geol. Soc. Lond.132, 579–609.
    [Google Scholar]
  49. PICKERING, K. T. (1984) Facies, facies associations and sediment transport/deposition processes in a late Precambrian upper basin‐slope/pro‐delta, Finnmark, N. Norway. In: Fine‐grained Sediments: Deep‐water Processes and Facies (Ed. by D. A. V. Stow & D. J. W. Piper). Spec. Publ. geol. Soc. Lond. 15, 343–362.
  50. PIPER, D. J. W. (1978) Turbidite muds and silts on deep sea fans and abyssal plains. In: Sedimentation in Submarine Canyons, Fans and Trenches (Ed. by D. J.Stanley & G.Kelling ), pp. 163–176. Dowden, Hutchinson & Ross, Stroudsburg , Pa .
    [Google Scholar]
  51. PULHAM, A. (1988) Depositional and syn‐sedimentary deformation processes in Namurian deltaic sequences of West County Clare, Ireland. Unpubl. PhD thesis, University of Liverpool, UK.
  52. PULHAM, A. (1989) Controls on internal structure and architecture of sandstone bodies within Upper Carboniferous fluvially‐dominated deltas, County Clare, western Ireland. In: Deltas–Sites and Traps of Fossil Fuels (Ed. by M. H. Whateley & K. T. Pickering). Spec. Publ. geol. Soc. Lond. 41, 179–203.
  53. RAMSBOTTOM, W. H. C. (1967) The use of goniatites in the zonation of the Namurian. Proc. Int. Subcommission Carbonif. Stratigr. (Sheffield, 1965), 23–25.
    [Google Scholar]
  54. RICCI‐LUCCHI, F. (1975) Depositional cycles in two turbidite formations of northern Appennines. J. Sedim. Petrol.45, 3–43.
    [Google Scholar]
  55. RIDER, M. H. (1974) The Namurian of County Clare, Ireland. Proc. R. Irish Acad.74B, 125–142.
    [Google Scholar]
  56. RIDER, M. H. (1978) Growth faults in the Carboniferous of Western Ireland. Bull. Am. Ass. Petrol. Geol.62, 2191–2213.
    [Google Scholar]
  57. SANDERSON, D. J. (1984) Structural variation across the northern margin of the Variscides in NW Europe. In: Variscan Tectonics of the North Atlantic Region (Ed. by D. H. W. Hutton & D. J. Sanderson). Spec. Publ. geol. Soc. Lond. 14, 149–166.
  58. SEVASTOPULO, G. D. (1981) Upper Carboniferous. In: A Geology of Ireland (Ed. by C. H.Holland ), pp. 173–188. Scottish Academic Press, Edinburgh .
    [Google Scholar]
  59. SMITH, K., SMITH, N. J. P. & HOLLIDAY, D. W. (1985) The deep structure of Derbyshire. Geol. J.20, 215–225.
    [Google Scholar]
  60. SOPER, N. J., WEBB, B. C. & WOODCOCK, N. H. (1987) Late Caledonian (Acadian) transpression in north‐west England: timing, geometry and geotectonic significance. Proc. Yorks. Geol. Soc.46, 175–192.
    [Google Scholar]
  61. STEELE, R. P. (1988) The Namurian sedimentary history of the Gainsborough Trough. In: Sedimentation in a Synorogenic Basin Complex–the Upper Carboniferous of Northwest Europe (Ed. by B. M.Besly & G.Kelling ), pp. 102–113. Blackie, Glasgow .
    [Google Scholar]
  62. STEVENSON, I. P. & GAUNT, G. D. (1971) The geology of the country around Chapel‐en‐le‐Frith. Mem. Geol. Surv. GB., Sheet 99.
    [Google Scholar]
  63. STOW, D. A. V. (1986) Deep Clastic Seas. In: Sedimentary Environments and Facies (Ed. by H. G.Reading ), pp. 399–444. Blackwell Scientific Publications, Oxford .
    [Google Scholar]
  64. STOW, D. A. V. & SHANMUGAM, G. (1980) Sequence of structures in fine‐grained turbidites: comparison of recent deep‐sea and ancient flysch deposits. Sediment. Geol.25, 23–42.
    [Google Scholar]
  65. STROGEN, P. (1988) The Carboniferous lithostratigraphy of southeast County Limerick, Ireland, and the origin of the Shannon Trough. Geol. J.23, 121–137.
    [Google Scholar]
  66. SUTER, J. R. & BERRYHILL, H. L.JR. (1985) Late Quaternary shelf‐margin deltas, Northwest Gulf of Mexico. Bull. Am. Ass. Petrol. Geol.69, 77–91.
    [Google Scholar]
  67. TREWIN, N. H. & HOLDSWORTH, B. K. (1973) Sedimentation in the lower Namurian rocks of the North Staffordshire Basin. Proc. Yorks. Geol. Soc.39, 371–408.
    [Google Scholar]
  68. WALKER, R. G. (1965) Origin and significance of internal structures of turbidites. Proc. Yorks. Geol. Soc.35, 1–32.
    [Google Scholar]
  69. WALKER, R. G. (1984) Turbidites and associated coarse clastic deposits. In: Facies Models (Ed. by R. G. Walker). Geosci. Can. Reprint Ser. 1, 171–188.
  70. ZIEGLER, P. A. (1988) Evolution of the Arctic–North Atlantic and the Western Tethys. Mem. Am. Ass. Petrol. Geol.43.
    [Google Scholar]
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