U-Pb and Rb-Sr geochronology of magmatism and metamorphism in the Dalradian of Connemara, western Ireland

Journal of the Geological Society

Volumn 153, Issue 1, 1996, Pages 109-120

  Cliff, R A ^a   Yardley, B W D ^a   Bussy, F R ^b  

^a UNIVERSITY OF LEEDS   (United Kingdom)

^b UNIVERSITY OF LAUSANNE   (Switzerland)

Author keywords

Connemara; Dalradian; Magmatism; Metamorphism; Rb Sr; U Pb

Indexed keywords

DALRADIAN; MAGMATISM; METAMORPHISM; RUBIDIUM/STRONTIUM DATING; URANIUM/LEAD DATING;

IRELAND, GALWAY, CONNEMARA;

EID: 0029769167     PISSN: 00167649     EISSN: None     Source Type: Journal    
DOI: 10.1144/gsjgs.153.1.0109     Document Type: Article

References (59)

1. BADLEY, M.E. 1976. Stratigraphy, structure and metamorphism of Dalradian rocks of the Maamturk Mountains, Connemara, Ireland. Journal of the Geological Society, London, 132, 509-520.
2. BARBER, J.P. 1985. High-grade metamorphism and melting in the Dalradian of Eastern Connemara, Ireland. PhD thesis, University of East Anglia, Norwich, UK,
3. _ & YARDLEY, B.W.D. 1985. Conditions of high-grade metamorphism in the Dalradian of Connemara, Ireland. Journal of the Geological Society, London, 142, 87-96.
4. BLUCK, B.J. & LEAKE, B.E. 1986. Late Ordovician to early Silurian amalgamation of the Dalradian and adjacent Ordovician rocks in the British Isles. Geology, 14, 917-919.
5. BRADSHAW, R., PLANT, A.G., BURKE, K.C. & LEAKE, B.E. 1969. The Oughterard granite, Connemara, Co. Galway. Proceedings of the Royal Irish Academy, 68B, 39-65.
6. BURTON, K. & O'NIONS, R.K. 1991. High-resolution garnet chronometry and the rates of metamorphic processes. Earth and Planetary Science Letters, 107, 649-671.
7. CHRISTENSEN J.N., ROSENFELD J.L. & DEPAOLO D.J. 1989. Rates of tectonometamorphic processes from rubidium and strontium isotopes in garnet. Science, 244, 1465-1469.
8. CLIFF, R.A., DROOP, G.T.R. & REX, D.C. 1985. Alpine metamorphism in the southeast Tauern Window, Austria: 2. rates of heating, cooling and uplift. Journal of Metamorphic Geology, 3, 403-415.
9. _, YARDLEY, B.W.D. & BUSSY, F. 1993. U-Pb isotopic dating of fluid infiltration and metasomatism during Dalradian regional metamorphism in Connemara, western Ireland. Journal of Metamorphic Geology, 11, 185-191.
10. DALY, J.S., CLIFF, R.A. & YARDLEY, B.W.D. (eds) 1989. Evolution of Metamorphic Belts. Geological Society, London, Special Publications, 43.
11. DE YOREO, J.J., LUX, D.R. & GUIDOTTI, C.V. 1989. The role of crustal anatexis and magma migration in the thermal evolution of regions of thickened continental crust. In: DALY, J.S., CLIFF, R.A. & YARDLEY, B.W.D. (eds) Evolution of Metamorphic Belts. Geological Society, London, Special Publications, 43, 187-202.
12. DEWEY, J.F. 1963. The lower Palaeozoic stratigraphy of central Murrisk, Co. Mayo, Ireland, and the evolution of the South Mayo Trough. Quarterly Journal of the Geological Society of London, 119, 312-344.
13. _ & RYAN, P.D. 1990. The Ordovician evolution of the South Mayo Trough, western Ireland. Tectonics, 9, 887-901.
14. ELIAS, E.M., MACINTYRE, R.M. & LEAKE, B.E. 1988. The cooling history of Connemara western Ireland from K-Ar and Rb-Sr age studies, Journal of the Geological Society, London, 145, 649-660.
15. FERGUSON, C.C. & AL AMEEN, S.I. 1986. Geochemistry of Dalradian pelites from Connemara, Ireland: new constraints on kyanite genesis and conditions of metamorphism. Journal of the Geological Society, London, 143, 237-252.
16. GILETTI, B.J., MOORBATH, S. & LAMBERT, R.ST.J. 1961. A geochronological study of the metamorphic complexes of the Scottish Highlands. Quarterly Journal of the Geological Society of London, 117, 233-272.
17. HARLAND, W.B., ARMSTRONG, R.L., COX, A.V., CRAIG, L.E., SMITH, A.G. & SMITH, D.G. 1990. A geologic timescale 1989. Cambridge University Press.
18. HARRIS, A.L., HASELOCK, P.J., KENNEDY, M.J. & MENDUM, J.R. 1994. The Dalradian Supergroup in Scotland, Shetland and Ireland. In: GIBBONS, W. & HARRIS, A.L. (eds) A revised correlation of Precambrian rocks in the British Isles. Geological Society, London, Special Reports, 22, 33-53.
19. JAGGER, M.D., AFTALION, M., MAX, M.D. & LEAKE, B.E. 1988. U-Pb zircon ages of basic rocks and gneisses intruded into the Dalradian rocks of Cashel Connemara western Ireland. Journal of the Geological Society, London, 145, 645-648.
20. JENKIN, G.R.T., FALLICK, A.E. & LEAKE, B.E. 1992. A stable isotope study of retrograde alteration in SW Connemara, Ireland. Contributions to Mineralogy and Petrology, 110, 269-288.
21. KENNAN, P.S., FEELY, M. & MOHR, P. 1987. The age of the Oughterard Granite, Connemara, Ireland. Geological Journal, 22, 273-280.
22. KROGH, T.E. 1982. Improved accuracy of U-Pb zircon ages by the creation of more concordant fractions using an air-abrasion technique. Geochimica et Cosmochimica Acta. 46, 637-649.
23. LEAKE, B.E. 1958. The Cashel-Lough Wheelaun intrusion, Co Galway. Proceedings of the Royal Irish Academy, 59B, 1155-1203.
24. _ 1969. The origin of the Connemara migmatites of the Cashel district, Connemara, Ireland. Quarterly Journal of the Geological Society of London, 125, 219-276.
25. _ 1970. The fragmentation of the Connemara basic and ultrabasic intrusions. In: NEWALL, G. & RAST, N. (eds) Mechanisms of Igneous Intrusion, Seel House Press, Liverpool, 103-122.
26. _ 1986. The geology of SW Connemara, Ireland: a fold and thrust Dalradian and metagabbroic gneiss complex. Journal of the Geological Society, London, 143, 221-236.
27. _ 1988. The age of the Oughterard Granite, Connemara, Ireland: Comments. Geological Journal, 23, 271-272.
28. _ 1989. The metagabbros, orthogneisses and paragneisses of the Connemara complex, western Ireland. Journal of the Geological Society, London, 146, 575-596.
29. _ & SKIRROW, G., 1960. The pelitic hornfelses of the Cashel-Lough Wheelaun intrusion. Journal of Geology, 68, 23-40.
30. _ & SINGH, D. 1986. The Delaney Dome Formation, Connemara, W. Ireland and the geochemical distinction of ortho- and paraquartzofeldspathic rocks. Mineralogical Magazine, 50, 205-215.
31. _ & TANNER, P.W.G. 1994. The geology of the Dalradian and associated rocks of Connemara, Western Ireland: a report to accompany the 1:63360 geological map and cross sections. Royal Irish Academy, Dublin.
32. _, _, SINGH, D. & HALLIDAY, A.N. 1983. Major southward thrusting of the Dalradian rocks of Connemara. Nature, 305, 210-213.
33. LEGGO, P.J., COMPSTON, W. & LEAKE, B.E. 1966. The geochronology of the Connemara granites and its bearing on the antiquity of the Dalradian series. Quarterly Journal of the Geological Society of London, 122, 91-118.
34. MCKERROW, W.S. & CAMPBELL, C.J. 1965. The stratigraphy and structure of the Lower Palaeozoic rocks of NW Galway. Scientific Proceedings of the Royal Dublin Society, A1, 27-51.
35. MAX M.D., LONG, C.B. & GEOGHEGAN, M.A. 1978, The Galway Granite and its setting. Geological Survey of Ireland Bulletin, 2, 223-234.
36. MEZGER, K., HANSON, G.N. & BOHLEN, S.R., 1989. U-Pb systematics of garnet in the late Archaean Pikwetonei granulite domain at Cauchon and Natawahunan Lakes, Manitoba, Canada. Contributions to Mineralogy and Petrology, 101, 136-148.
37. MILLER, W.M., FALLICK, A.E., LEAKE, B.E., MACINTYRE, R.M. & JENKIN, G.R.T. 1991. Fluid disturbed hornblende K-Ar ages from the Dalradian rocks of Connemara, Western Ireland. Journal of the Geological Society, London, 148, 985-992.
38. MORRIS, W.A. & TANNER, P.W.G. 1977. The use of palaeomagnetic data to delineate the history of the development of the Connemara antiform. Canadian Journal of Earth Sciences, 13, 294-304.
39. PEACOCK, S.M. 1989. Thermal modelling of metamorphic pressure-temperature-time paths. In: SPEAR, F.S. & PEACOCK, S.M. (eds) Metamorphic Pressure-temperature-time paths. American Geophysical Union, 57-97.
40. PIDGEON, R.T. 1969. Zircon U-Pb ages from the Galway granite and the Dalradian Connemara Ireland. Scottish Journal of Geology, 5, 375-392.
41. ROBERTSON, D.J. 1988. Palaeomagnetism of the Connemara Gabbro: western Ireland. Geophysical Journal of the Royal Astronomical Society, 94, 51-64.
42. RYAN, P.D., FLOYD, P.A. & ARCHER, J.B. 1980. The stratigraphy and petrochemistry of the Lough Nafooey Group (Tremadocian), western Ireland. Journal of the Geological Society, London, 137, 443-458.
43. SENIOR, A. 1973. The geology of the Shannavara district, Connemara, Eire. PhD Thesis, University of Bristol, UK.
44. STEIGER, R.H. & JÄGER, E. 1977. Subcommission on geochronology: convention on the use of decay-constants in geo- and cosmochronology. Earth and Planetary Science Letters, 36, 359-362.
45. TANNER, P.W.G. 1990. Structural age of the Connemara gabbros, western Ireland. Journal of the Geological Society, London, 147, 599-602
46. _ & LESLIE, A.G. 1994. A pre-D2 age for the Ben Vuirich granite in the Dalradian of Scotland. Journal of the Geological Society, London, 151, 209-212.
47. _ & SHACKLETON, R.M. 1979. Structure and stratigraphy of the Dalradian rocks of the Bennabeola area western Connemara Eire. In: HARRIS, A.L., HOLLAND, C.H. & LEAKE, B.E. (eds) The Caledonides of the British Isles - reviewed. Geological Society, London, Special Publications, 8, 243-256.
48. _, DEMPSTER, T.J. & DICKIN, A.P. 1989. Time of docking of the Connemara terrane with the Delaney Dome Formation western Ireland. Journal of the Geological Society, London, 146, 389-392.
49. TRELOAR, P.J. 1985. Garnet-biotite thermometry and barometry in the Cashel thermal aureole, Connemara, Ireland. Journal of the Geological Society, London, 142, 77-86.
50. WAGER, L.R. 1932. The geology of the Roundstone district, County Galway. Proceedings of the Royal Irish Academy, 41B, 46.
51. WICKHAM, S.M. & OXBURGH, E.R. 1987. Low pressure regional metamorphism in the Pyrenees and its implications for the thermal evolution of rifted continental crust. Philosophical Transactions of the Royal Society of London, A321, 219-241.
52. YARDLEY, B.W.D. 1976. Deformation and metamorphism of Dalradian rocks and the evolution of the Connemara Cordillera. Journal of the Geological Society, London, 132, 521-542.
53. _ 1986. Fluid migration and veining in the Connemara schists. Ireland. In: WALTHER, J.V. & WOOD, B.J. (eds) Fluid Rock Interactions during Metamorphism. Springer Verlag, New York, 109-131.
54. _ & BARBER, J.P., 1991. Melting reactions in the Connemara schists: the role of water infiltration in the formation of amphibolite facies migmatites. American Mineralogist, 76, 848-856.
55. _ & SENIOR, A. 1981. Basic magmatism in Connemara. Ireland: evidence for a volcanic arc? Journal of the Geological Society, London, 139, 67-70.
56. _, BARBER, J.P. & GRAY, J.R. 1987. The metamorphism of the Dalradian rocks of western Ireland and its relation to tectonic setting. Philosophical Transactions of the Royal Society of London, A321, 243-268.
57. _, LEAKE, B.E. & FARROW, C.M. 1980. The metamorphism of Fe-rich pelites from Connemara, Ireland. Journal of Petrology, 21, 365-399.
58. _, ROCHELLE, C.A., BARNICOAT, A.C. & LLOYD, G.E. 1991a. Oscillatory zoning in metamorphic minerals: an indicator of infiltration metasomatism. Mineralogical Magazine, 55, 357-365.
59. _, BOTTRELL, S.H. & CLIFF, R.A., 1991b, Evidence for a regional scale fluid-loss event during mid-crustal metamorphism. Nature, 349, 151-154.