Umbers, ocean crust and the Irish Caledonides: Terrane transpression and the morphology of the Laurentian margin

Journal of the Geological Society

Volumn 154, Issue 5, 1997, Pages 829-838

  Williams, D M ^a   Harkin, J ^a   Rice, A H N ^b  

^a NATIONAL UNIVERSITY OF IRELAND   (Ireland)

^b Institut für Geologie   (Austria)

Author keywords

Geochemistry; Laurentia; Ordovician; Terranes; Umbers

Indexed keywords

LAURENTIAN; OCEAN CRUST; ORDOVICIAN; PALAEOGEOGRAPHY; TERRANE TRANSPRESSION; UMBER;

IRELAND, COUNTY MAYO, CLEW BAY;

EID: 0031471598     PISSN: 00167649     EISSN: None     Source Type: Journal    
DOI: 10.1144/gsjgs.154.5.0829     Document Type: Article

References (64)

1. ARCHER, J.B. 1977. Llanvirn stratigraphy of the Galway-Mayo border area, W. Ireland. Geological Journal, 12, 77-98.
2. ARMSTRONG, H.A., CLARKSON, E.N.K. & OWEN, A. 1990. A new Lower Ordovician conodont faunule from the Northern Belt of the Southern Uplands of Scotland. Scottish Journal of Geology, 26, 47-52.
3. _, OWEN, A.W., SCRUTTON, C.T., CLARKSON, E.N.K. & TAYLOR, C.M. 1996. Evolution of the Northern Belt, Southern Uplands: implications for the Southern Uplands controversy. Journal of the Geological Society, London, 153, 197-206.
4. 2 during serpentinization of olivine at 300°C and 500 bar. Geology, 24, 351-354.
5. BLUCK, B.J. 1983. Role of the Midland Valley of Scotland in the Caledonian Orogeny. Transactions of the Royal Society of Edinburgh: Earth Sciences, 74, 119-136.
6. _ 1984. Pre-Carboniferous history of the Midland Valley of Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences, 75, 275-295.
7. _ 1985. The Scottish paratectonic Caledonides. Scottish Journal of Geology, 21, 437-464.
8. _, GIBBONS, W. & INGHAM, J.K. 1992. Terranes. In: COPE, J.C.W., INGHAM, J.K. & RAWSON, P.F. (eds) Atlas of Palaeogeography and Lithofacies. The Geological Society, London, Memoirs, 13, 1-4.
9. BONATTI, E., KRAEMER, T. & RYDELL, H. 1972. Classification and genesis of submarine iron-manganese deposits. In: HORN, D.R. (ed.) Ferromanganese Deposits an the Ocean Floor. International Decade of Ocean Exploration, National Science Foundation, Washington.
10. BOSTROM, K. 1973. The origin and fate of ferromanganoan active ridge sediments. Stokholm Contributions to Geology, 27, 149-240.
11. BROWN, C. & WHELAN, J.P. 1995. Terrane boundaries in Ireland inferred from the Irish magnetotelluric profile and other geophysical data. Journal of the Geological Society, London, 152, 231-249.
12. CAWOOD, P.A. & SUHR, G. 1992. Generation of ophiolites: Constraints from the Bay of Island Complex, western Newfoundland. Tectonics, 11, 884-897.
13. CLIFT, P.D. & RYAN, P.D. 1994. Geochemical evolution of an Ordovician island arc, South Mayo, Ireland. Journal of the Geological Society, London, 151, 329-342.
14. COLMAN-SADD, S.D., STONE, P., SWINDEN, H.S. & BARNES, R.P. 1992. Parallel geological development in the Dunnage Zone of Newfoundland and the Lower Palaeozoic terranes of southern Scotland: An assessment. Transactions of the Royal Society of Edinburgh: Earth Sciences, 83, 571-594.
15. CURRY, G.B., BLUCK, B.J., BURTON, C.J., INGHAM, J.K., SIVETER, D.J. & WILLIAMS, A. 1984. Age, evolution and tectonic history of the Highland Border Complex, Scotland. Transactions of the Royal Society of Edinburgh, 75, 113-133.
16. DEMPSTER, T.J. & BLUCK, B.J. 1992. The age and tectonic significance of the Bute amphibolite, Highland Border Complex, Scotland. Geological Magazine, 128, 77-80.
17. DEWEY, J.F. & RYAN, P.D. 1990. The Ordovician evolution of the South Mayo trough, western Ireland. Tectonics, 9, 887-901.
18. _ & SHACKELTON, R.M. 1984. A model for the evolution of the Grampian tract in the early Caledonides and Appalachians. Nature, 312, 115-121.
19. FARQUHARSON, C.G. & THOMPSON, R. 1992. The Blairgowrie magnetic anomaly and its interpretation using simplex optimisation. Transactions of the Royal Society of Edinburgh: Earth Sciences, 83, 509-518.
20. FLOYD, P.A. & WINCHESTER, J.A. 1978. Identification and discrimination of altered and metamorphosed volcanic rocks using immobile elements. Chemical Geology, 21, 291-306.
21. GRIBBLE, R.F., STERN, R.J., BLOOMER, S.H., STUBEN, D., O'HEARN, T. & NEWMAN, S. 1996. MORB mantle and subduction components interact to generate basalts in the southern Mariana Trough back-arc basin. Geochimica et Cosmochimica Act 60, 2153-2166.
22. HARKIN, J., WILLIAMS, D.M., MENUGE, J.F. & DALY, S. 1997. Turbidites from the Clew Bay Complex, Ireland: provenance based on petrography, geochemistry and crustal residence values. Geological Journal, 31, 379-388.
23. HARPER, D.A.T., WILLIAMS, D.M. & ARMSTRONG, H.A. 1989. Stratigraphical correlations adjacent to the Highland Boundary Fault in the west of Ireland. Journal of the Geological Society,London, 146, 381-384.
24. HENDERSON, W.G. & ROBERTSON, A.H.F. 1984. The Highland Border rocks and their relation to marginal basin development in the Scottish Caledonides. Journal of the Geological Society, London, 139, 33-450.
25. HUTTON, D.H.W. 1987. Strike-slip terranes and a model for the evolution of the British and Irish Caledonides. Geological Magazine, 124, 405 -125.
26. _ & ALSOP, G.I. 1996. The Caledonian strike-swing and associated lineaments in NW Ireland and adjacent areas: sedimentation, deformation and igneous intrusion patterns. Journal of the Geological Society,London, 153, 345-360.
27. IIJIMA A., WATANABE, Y., OGIHARA, S. & YAMAZAKI, K. 1990. Mineoka Umber: a submarine hydrothermal deposit on an Eocene volcanic ridge in Central Japan. Special publication of the International Association of Sedimentologists, 11, 73-88.
28. INCE, D. 1984. Sedimentation and tectonism in the Middle Ordovician of the Girvan district, SW Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences, 75, 225-238.
29. JEHU, T.J. & CAMPBELL, R. 1917. The Highland Border rocks of the Aberfoyle district. Transactions of the Royal Society of Edinburgh, 52, 175-212.
30. JOHNSTON, J.D. & PHILLIPS, W.E.A. 1995. Terrane amalgamation in the Clew Bay region, west of Ireland. Geological Magazine, 132, 485-501.
31. KAY, M. 1975. Campbelltown Sequence, manganiferous beds adjoining the Dunnage Melange, northeastern Newfoundland. Geological Society of America Bulletin, 86, 105-108.
32. KELLEY, S. & BLUCK, B.J. 1989. Detrital mineral ages from the Southern Uplands using Ar-Ar laser probe. Journal of the Geological Society, London, 146, 401-403.
33. KEMP, A.E.S. 1987. Tectonic development of the Southern Belt of the Southern Uplands accretionary complex. Journal of the Geological Society, London, 144, 827-838.
34. LEGGETT, J.K. 1987. The Southern Uplands as an accretionary prism: the importance of analogues in reconstructing palaeogeography. Journal of the Geological Society, London, 144, 737-752.
35. _ & SMITH, T.K. 1980. Fe-rich deposits associated with Ordovician basalts in the Southern Uplands of Scotland: possible Lower Palaeozoic equivalents of modern active ridge sediments. Earth and Planetary Science Letters, 47, 431-440.
36. _, MCKERROW, W.S. & CASEY, D.M. 1982. The anatomy of a Lower Palaeozoic accretionary forearc: the Southern Uplands of Scotland. In: LEGGETT, J.K. (ed.) Trench-Forearc Geology, Geological Society, London, Special Publications, 10, 494-520.
37. LEITCH, E.C. 1984. Marginal basins of the SW Pacific and their preservation and recognition of their ancient analogues: a review. In: KOKELAAR, B.P & HOWELLS, M.F. (eds) Marginal Basin Geology. Geological Society, London, Special Publications, 16, 97-108.
38. LONG, C.B., MCCONNELL, B. & ARCHER, J.B. 1995. The Geology of Connemara and South Mayo. Geological Survey of Ireland, description to accompany 1:1000,000 sheet 10.
39. MAX, M.D. 1989. The Clew Bay Group: a displaced terrane of Highland Border Group rocks (Cambro-Ordovician) in north-west Ireland. Geological Journal, 24, 1-17.
40. MORRIS, J.H. 1987. The Northern Belt of the Longford-Down Inlier, Ireland and Southern Uplands, Scotland: an Ordovician back-arc basin. Journal of the Geological Society, London, 144, 773-786.
41. PEARCE, J.A. 1976. Statistical analysis of major element patterns in basalts. Journal of Petrology, 17, 15-43.
42. _ & NORRY, M.J. 1979. Petrogenic implications of Ti, Zr, Y and Nb variations in volcanic rocks. Contributions to Mineralogy and Petrology, 69, 33-47.
43. PHILLIPS, W.E.A. 1973. The pre-Silurian rocks of Clare Island, Co. Mayo, Ireland, and the age of the metamorphism of the Dalradian in Ireland. Journal of the Geological Society, London, 129, 585-606.
44. _ 1974. The stratigraphy, sedimentary environments and palaeogeography of the Silurian strata of Clare Island, Co. Mayo, Ireland. Journal of the Geological Society, London, 130, 19-41.
45. PICKERING, K.T., BASSETT, M.G. & SIVETER, D.J. 1988. Late Ordovician-early Silurian destruction of the Iapetus Ocean: Newfoundland, British Isles and Scandinavia - a discussion. Transactions of the Royal Society of Edinburgh: Earth Sciences, 79, 361-382.
46. ROBERTSON, A.H.F. & HENDERSON, W.G. 1984. Geochemical evidence for the origins of igneous and sedimentary rocks of the Highland Border, Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences, 75, 135-150.
47. _ & HUDSON, J.D. 1973. Cyprus umbers: chemical precipitates on a Tethyan ocean ridge. Earth and Planetary Science Letters, 18, 93-101.
48. RYAN, P.D., SAWAL, V. & ROWLANDS, A.S. 1983. Ophiolitic melange separates the ortho- and paratectonic Caledonides in western Ireland. Nature, 301, 50-52.
49. SAUNDERS, A.D. & TARNEY, J. 1984. Geochemical characteristsics of basaltic volcanism within back-arc basins. In: KOKELAAR, B.P. & HOWELLS, M.F. (eds) Marginal Basin Geology. Geological Society, London, Special Publications, 16, 59-76.
50. SOPER, N.J. & WOODCOCK, N.H. 1990. Silurian collision and sediment dispersal patterns in southern Britain. Geological Magazine, 127, 527-542.
51. _, STRACHAN, R.A., HOLDSWORTH, R.E., GAYER, R.A. & GREILING, R.O. 1992. Sinistral transpression and the Silurian closure of Iapetus. Journal of the Geological Society, London, 149, 871-880.
52. STURT, B.A., THON, A. & FURNES, H. 1980. The geology and preliminary geochemistry of the Karmoy ophiolite, S.W. Norway. In: PANAYIOTOU, A. (ed.) Proceedings of the International Ophiolite Symposium, Nicosia, 1979. Geological Survey Department, Nicosia, Cyprus, 538-554.
53. TOTH, J.R. 1980. Deposition of submarine crusts rich in manganese and iron. Geological Society of America Bulletin, 91, 44-54.
54. TUREKIAN, K.K. & WEDEPOHL, K.H. 1961. Distribution of the elements in some major units of the earth's crust. Geological Society of America Bulletin, 72, 175-197.
55. VAN STAAL, C.R. 1994. Brunwick subduction complex in the Canadian Appalachians: Record of the Late Ordovician to Late Silurian collision between Laurentia and the Gander margin of Avalon. Tectonics, 13, 946-962.
56. WATSON, J. V. 1984. The ending of the Caledonian orogeny in Scotland. Journal of the Geological Society, London, 141, 193-214.
57. WILLIAMS, D.M. 1990. Evolution of Ordovician terranes in western Ireland and their possible Scottish equivalents. Transactions of the Royal Society of Edinburgh: Earth Sciences, 81, 23-29.
58. _ & HARPER, D.A.T. 1991. End-Silurian modification of Ordovician terranes in western Ireland. Journal of the Geological Society, London, 148, 165-171.
59. _, HARKIN, J. & HIGGS, K.T. 1994. A late Caledonian melange in Ireland: implications for tectonic models. Journal of the Geological Society, London, 151, 307-314.
60. _, _ & _ 1996. Implications of new microfloral evidence from the Clew Bay Complex for Silurian relationships in the western Irish Caledonides, Journal of tlh Geological Society, London, 153, 771-777.
61. _, O'CONNOR, P.D. & MENUGE, J. 1992. Silurian turbidite provenance and the closure of Iapetus. Journal of the Geological Society, London, 149, 349-357.
62. WINCHESTER, J.A. & MAX, M.D. 1987. The pre-Caledonian Inishkea Division of northwest Co. Mayo, Ireland: its geochemistry and probable stratigraphic position. Geological Journal, 22, 309-331.
63. _, _ & LONG, C.B. 1987. Trace element geochemical correlation in the reworked Proterozoic Dalradian metavolcanic suites of the western Ox Mountains and NW Mayo Inliers, Ireland. In: PHARAOH, T.C., BECKINSALE, R.D. & RICKARD, D. (eds) Geochemistry and Mineralization of Proterozoic Volcanic Suites. Geological Society, London, Special Publications, 33, 489-502.
64. WRAFTER, J.P. & GRAHAM, J.R. 1989. Ophiolitic detritus in the Ordovician sediments of South Mayo, Ireland. Journal of the Geological Society, London, 146, 213-215.