Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-06T12:02:15.980Z Has data issue: false hasContentIssue false
  • English
  • Français

Intra-Lower Palaeozoic faults in the Southern Irish Sea Area

Published online by Cambridge University Press:  01 May 2009

J. W. Baker
J. W. Baker
Affiliation:
Department of Geology, University College, Cardiff, CF1 1XL
Get access Rights & Permissions [Opens in a new window]

Summary

The deep-seated caledonoid lineaments which developed in conjunction with the L. Palaeozoic basins in Wales, S. Irish Sea and Co. Wexford, bounded elongated fault-blocks within the resistant basement and its cover; it is suggested that under compression these broke internally along contemporary, strike-slip cross-faults. In the Central Wales and N. Wales–SE Co.Wexford blocks the latter were principally E–W and N–S faults respectively. Repeated movements of diverse styles along members of all three suites have influenced sedimentalogic, volcanic, plutonic and geomorphologic events throughout the Phanerozoic; in particular, they permitted the Irish Sea Geanticline to rise above the roots of the Monian tectogene, and determined the form of the younger Irish Sea sedimentary basins.

Type
Articles
Information
Geological Magazine , Volume 108 , Issue 6 , November 1971 , pp. 501 - 509
Copyright
Copyright © Cambridge University Press 1971

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Al-Shaik, Z. D. 1969. Geophysical results from Caernarvon and Tremadoc Bays, Nature, Lond. 224, 897–8.CrossRefGoogle Scholar
Baker, J. W. 1966. The Ordovician and other post-Rosslare Series rocks in south-east Co. Wexford. Geol. J. 5, 1–6.CrossRefGoogle Scholar
Baker, J. W. 1968. The petrology of the Carnsore Granite Intrusion, Co. Wexford. Proc. R. Ir. Acad. 67(B), 159–76.Google Scholar
Baker, J. W. 1970. Petrology of the metamorphosed Pre-Cambrian rocks of southeasternmost Co. Wexford.Proc. R. Ir. Acad. 69(B), 1–20.Google Scholar
Baker, J. W. 1971. The Proterozoic History of Southern Britain. Proc. Geol. Assoc. 82, 249–66.CrossRefGoogle Scholar
Bassett, D. A. 1958. Notes on the faults of the Bala district. Lpool Mnchr geol. J. 2, 1–10.Google Scholar
Bassett, D. A. 1969. Some of the major structures of early Palaeozoic age in Wales and the Welsh Borderland: an historical essay. In Wood, A. (Ed.): The Pre-Cambrian and Lower Palaeozoic Rocks of Wales. Univ. Wales Press, Cardiff.Google Scholar
Bassett, D. A., & Walton, E. K. 1960. The Hell's Mouth Grits: Cambrian greywackes in St. Tudwal's Peninsula, N. Wales. Q. Jl geol. Soc. Lond. 116, 85–110.CrossRefGoogle Scholar
Bassett, D. A., Whittington, H. B. & Williams, A. 1966. The stratigraphy of the Bala district, Merionethshire. Q. Jl geol. Soc. Lond. 122, 219–71.CrossRefGoogle Scholar
Blundell, D. J., Davey, F. J. & Graves, L. J. 1968. Sedimentary Basin in the Southern Irish Sea, Nature, Lond. 219, 55–6.CrossRefGoogle Scholar
Bromley, A. V. 1965. Intrusive quartz latites in the Blaenau Ffestiniog area, Merioneth. Geol. J. 4, 247–56.CrossRefGoogle Scholar
Bullerwell, W. & McQuillan, R. 1969. Preliminary report on a seismic reflection survey in the southern Irish Sea, July, 1968. Inst. Geol. Sci. Lond. Report No. 69/2.Google Scholar
Crimes, T. P. 1970 a. A facies analysis of the Cambrian in Wales. Palaeogeography, Palaeoclimatol., Palaeoecol. 7, 113–70.CrossRefGoogle Scholar
Crimes, T. P. 1970 b. A facies analysis of the Arenig of Western Lleyn, North Wales. Proc. Geol. Ass. 81, 221–40.Google Scholar
Crimes, T. P. & Crossley, J. D. 1968. The stratigraphy, sedimentology, ichnology and structure of the Lower Palaeozoic rocks of part of north-eastern Co. Wexford. Proc. R. Ir. Acad. 67(B), 185–215.Google Scholar
Cummins, W. A. 1957. The Denbigh Grits: Wenlock greywackes in Wales. Geol. Mag. 94, 433–51.CrossRefGoogle Scholar
Dewey, J. F. 1969. Evolution of the Appalachian/Caledonian Orogen. Nature, Lond. 222, 124–9.CrossRefGoogle Scholar
Gardiner, P. R. R. & Brenchley, P. J. 1970. The Pre-Cambrian and Lower Palaeozoic geology of Co. Wexford. Ir. Nat. J. 16, 370–8.Google Scholar
George, T. N. 1960. Lower Carboniferous rocks in Co. Wexford. Q. Jl geol. Soc. Lond. 116, 349–64.CrossRefGoogle Scholar
George, T. N. 1963. The Palaeozoic growth of the British Caledonides. In Johnson, M. R. W. & Stewart, F. H. (Eds.): The British Caledonides, Oliver & Boyd, Edinburgh.Google Scholar
Greig, D. E., Wright, J. E., Hains, B. A. & Mitchell, G. H. 1968. Geology of the Country around Church Stretton, Craven Arms, Wenlock Edge and Brown Clee (Sheet 166), Mem. Geol. Surv. Gt. Brit., Lond.Google Scholar
James, J. H. 1956. The structure and stratigraphy of part of the Pre-Cambrian outcrop between Church Stretton and Linley, Shropshire. Q. Jl geol. Soc. Lond. 112, 315–37.CrossRefGoogle Scholar
James, D. M. G. & James, J. 1969. The influence of deep fractures on some areas of Ashgillian and Llandoverian sedimentation in Wales. Geol. Mag. 106, 562–82.CrossRefGoogle Scholar
Jones, O. T. & Pugh, W. J. 1935. The geology of the districts around Machynlleth and Aberystwyth, Proc. Geol. Ass. 46, 247–300.CrossRefGoogle Scholar
Jones, O. T. 1949. An early Ordovician shore-line in Radnorshire near Builth Wells. Q. Jl geol. Soc. Lond. 105, 65–99.CrossRefGoogle Scholar
Leutwein, F. 1970. Preliminary remarks on some geochronological analyses of Irish granites and gneisses. Ir. Nat. J. 16, 306–8.Google Scholar
McQuillan, R., Wright, J. E., Owens, B. & Lister, T. R. 1969. Recent geological investigations in the Irish Sea. Nature, Lond. 222, 365–6.CrossRefGoogle Scholar
Rast, N. 1969 a. The relationship between Ordovician structure and volcanicity in Wales. In Wood, A. (Ed.): The Pre-Cambrian and Lower Palaeozoic rocks of Wales. Univ. Wales Press, Cardiff.Google Scholar
Jones, O. T. 1969 b. Orogenic belts and their parts. In Kent, P. E. et al. (Eds.): Time and Place in Orogeny. Geological Society (London).Google Scholar
Shackleton, R. M. 1954. The structural evolution of N. Wales. Lpool Mnchr geol. J. 1, 261–97.CrossRefGoogle Scholar
Shackleton, R. M. 1956. Notes on the structure relations of Pre-Cambrian and Ordovician rocks of south-western Lleyn (Caernarvonshire). Lpool Mnchr geol. J. 1, 400–9.CrossRefGoogle Scholar
Whittard, W. F. 1952. A geology of South Shropshire. Proc. Geol. Ass. 63, 143–97.CrossRefGoogle Scholar
Wedd, C. B., Smith, B. & Wills, L. J. 1927. Geology of the district around Wrexham. (Sheet 121) Mem. Geol. Surv. England and Wales, London.Google Scholar
Wood, A. & Woodland, A. W. 1968. Borehole at Mochras, west of Llanbedr, Merionethshire. Nature, Lond. 219, 1352–4.CrossRefGoogle Scholar