Neoproterozoic extensional basic magmatism associated with the West Highland granite gneiss in the Moine supergroup of NW Scotland

Journal of the Geological Society

Volumn 156, Issue 6, 1999, Pages 1153-1162

  Millar, Ian L ^a  

^a BRITISH ANTARCTIC SURVEY   (United Kingdom)

Author keywords

Caledonides; Moine Supergroup; Neoproterozoic; Rifting; Scotland

Indexed keywords

CALEDONIAN OROGENY; MAFIC ROCK; MAGMATISM; PROTEROZOIC; RIFTING;

UNITED KINGDOM;

EID: 0033394886     PISSN: 00167649     EISSN: None     Source Type: Journal    
DOI: 10.1144/gsjgs.156.6.1153     Document Type: Conference Paper

References (50)

1. AFTALION, M. & VAN BREEMEN, O. 1980. U-Pb zircon, monazite and Rb-Sr whole rock systematics of granitic gneiss and psammitic to semi-pelitic host gneiss from Glenfinnan, northwestern Scotland. Contributions to Mineralogy and Petrology, 72, 87-98.
2. BARR, D., ROBERTS, A.M., HIGHTON, A.J., PARSON, L.M. & HARRIS, A.L. 1985. Structural setting and geochronological significance of the West Highland Granitic Gneiss, a deformed granite within Proterozoic. Moine rocks of NW Scotland. Journal of the Geological Society, London, 142, 663-675.
3. BROOK, M., POWELL, D. & BREWER, M.S. 1976. Grenville age for rocks in the Moine of north-western Scotland. Nature, 260, 515-517.
4. CLIFFORD, T.N. 1957. The stratigraphy and structure of part of the Kintail district of southern Ross-shire: its relation to the Northern Highlands. Quarterly Journal of the Geological Society of London, 113, 57-85.
5. CORFU, F. & AYRES, L.D. 1984. U-Pb ages and genetic significance of heterogeneous zircon populations in rocks from the Favourable Lake area, Northwestern Ontario. Contributions to Mineralogy and Petrology, 88, 86-101.
6. DALZIEL, I.W.D. 1963. Zircons from the granite gneiss of western Ardgour, Argyll; their bearing on its origin. Transactions of the Edinburgh Geological Society, 19, 349-362.
7. _ 1966. A structural study of the granitic gneiss of western Ardgour. Argyll, and Inverness-shire. Scottish Journal of Geology, 2, 125-152.
8. _ 1992. On the organization of American plates in the Neoproterozoic and the breakout of Laurentia. GSA Today, 2, 237-241.
9. _ 1994. Precambrian Scotland as a Laurentia-Gondwana link. Origin and significance of cratonic promontories. Geology, 22, 589-592.
10. _ 1997. Neoproterozoic-Paleozoic geography and tectonics: Review, hypothesis, environmental speculation. Bulletin of the Geological Society of America, 109, 16-42.
11. FRIEND, C.R.L., KINNY, P.D., ROGERS, G., STRACHAN, R.A. & PATERSON, B.A. 1997. U-Pb zircon geochronological evidence for Neoproterozoic events in the Glenfinnan Group (Moine Supergroup): the formation of the Ardgour granite gneiss, north-west Scotland. Contributions to Mineralogy and Petrology, 128, 101-113.
12. GLOVER, B.W., KEY, R.M., MAY, F., CLARK, G.C., PHILLIPS, E.R. & CHACKFIELD, B.C. 1995. A Neoproterozoic multiphase rift sequence: the Grampian and Appin groups of the south western Monadhliath Mountains of Scotland. Journal of the Geological Society, London, 152, 391-406.
13. HOLDSWORTH, R.E. & ROBERTS, A.M. 1984. Early curvilinear fold structures and strain in the Moine of the Glen Garry region. Inverness-shire. Journal of the Geological Society, London, 141, 327-338.
14. _, STRACHAN, R.A. & HARRIS, A.L. 1994. Precambrian rocks in northern Scotland east of the Moine Thrust: the Moine Supergroup. In: GIBBONS, W. & HARRIS, A.L. (eds) A revised correlation of Precambrian rocks in the British Isles. Geological Society, London, Special Reports, 22, 23-32.
15. JOHNSTONE, G.S. 1975. The Moine succession. In: HARRIS, A.L., SHACKLETON, R.M., WATSON, J.V., DOWNIE, C., HARLAND, W.B. & MOORBATH, S. (eds) A correlation of Precambrian rocks in the British Isles. Geological Society London, Special Reports, 6, 30-42.
16. _, SMITH, D.I. & HARRIS, A.L. 1969. The Moinian assemblage of Scotland. In: KAY, M. (ed.) North Atlantic geology and continental drift. Memoir of the American Association of Petroleum Geologists, 12, 159-180.
17. KROGH, T.E. 1973. A low contamination method for the hydrothermal decomposition of zircon and extraction of U and Pb for isotopic age determinations. Geochimica et Cosmochimica Acta, 37, 485-494.
18. _ 1982. Improved accuracy of U-Pb zircon ages by the creation of more concordant systems using an air abrasion technique. Geochimica et Cosmochimica Acta, 46, 637-649.
19. 205Pb for use as a tracer for isotope dilution analysis. Carnegie Institute, Washington. Year-book, 74, 416-417.
20. LEEDAL, G.P. 1952. The Cluanie igneous intrusion. Inverness-shire and Rossshire. Quarterly Journal of the Geological Society of London, 137, 41-59.
21. LUDWIG, K.R. 1989. PBDAT: a computer program for processing Pb-U-Th isotope data, version 1.20. U.S. Geological Survey, Open-file Report, 88-542.
22. _ 1990. Isoplot: a plotting and regression program for radiogenic isotope data, version 2.03. U.S. Geological Survey, Open-file Report, 88-557.
23. MAY, F. & HIGHTON, A.J. 1997. Geology of the Invermoriston district. Memoir of the British Geological Survey, Sheet 72E (Scotland).
24. MILLAR, I.L. 1990. Caledonian and pre-Caledonian events in Moine rocks of the Cluanie area, Inverness-shire. PhD thesis, University of London.
25. MOORHOUSE, S.J. & MOORHOUSE, V.E. 1979. The Moine amphibolite suites of central and northern Sutherland, Scotland. Mineralogical Magazine, 43, 211-225.
26. NOBLE, S.R., HYSLOP, E.K. & HIGHTON, A.J. 1996. High precision U-Pb monazite geochronology of the c. 806 Ma Grampian Shear Zone and the implications for the evolution of the Central Highlands of Scotland. Journal of the Geological Society, London, 153, 511-514.
27. PANKHURST, R.J. & RAPELA, C.R. 1995. Production of Jurassic rhyolite by anatexis of the lower crust of Patagonia. Earth and Planetary Science Letters, 134, 23-36.
28. PEACOCK, J.D. 1977. Metagabbros in granitic gneiss, Inverness-shire, and their significance in the structural history of the Moines. Institute of Geological Sciences Report, 77/20.
29. _, MENDUM, J.R. & FETTES, D.J. 1992. Geology of the Glen Affric district. Memoir of the British Geological Survey, Sheet 72E (Scotland).
30. PEARCE, J.A. 1983. Role of the sub-continental lithosphere in magma genesis at active continental margins. In: HAWKESWORTH, C.J. & NORRY, M.J. (eds) Continental basalts and mantle xenoliths. Shiva Geological Series, 230-249.
31. PIDGEON, R.T. & AFTALION, M. 1978. Cogenetic and inherited zircon U-Pb systems in granites: Palaeozoic granites of Scotland and England. In: BOWES, D.R. & LEAKE, B.E. (eds) Crustal Evolution in northwestern Britain and adjacent regions. Geological Journal Special Issue, 10, 82-106.
32. POWELL, D. 1964. The stratigraphical succession of the Moine Schists around Lochailort (Inverness-shire) and its regional significance. Proceedings of the Geologists' Association, London, 75, 223-250.
33. ROBERTS, A.M. & HARRIS, A.L. 1983. The Quoich Line - a limit of early Palaeozoic crustal reworking in the Moine of the northern Highlands of Scotland. Journal of the Geological Society, London, 140, 883-892.
34. _, STRACHAN, R.A., HARRIS, A.L., BARR, D. & HOLDSWORTH, R.E. 1987. The Sgurr Beag nappe: a reassessment of the stratigraphy and structure of the Northern Highland Moine. Bulletin of the Geological Society of America, 98, 497-506.
35. ROCK, N.M.S., MACDONALD, R., WALKER, B.H., MAY, F., PEACOCK, J.D. & SCOTT, P. 1985. Intrusive metabasic belts within the Moine assemblage, west of Loch Ness, Scotland: evidence for metabasite modification by country rock interactions. Journal of the Geological Society, London, 142, 643-661.
36. ROGERS, G., HYSLOP, E.K., STRACHAN, R.A., PATERSON, B.A. & HOLDSWORTH, R.E. 1998. The structural setting and U-Pb geochronology of Knoydartian pegmatites in W Inverness-shire: evidence for Neoproterozoic tectonothermal events in the Moine of NW Scotland. Journal of the Geological Society, London, 155, 685-696.
37. SANDERS, A.S., VAN CALSTEREN, P.W.C. & HAWKESWORTH, C.J. 1984. Sm-Nd age for the Glenelg eclogite in northwest Scotland. Nature, 312, 439-440.
38. SCHILLING, J.G., ZAJAC, M., EVANS, R., JOHNSTONE, T., WHITE, W., DEVINE, J.D. & KINGSLEY, R. 1983. Petrologic and geochemical variations along the Mid-Atlantic Ridge from 27°N to 73°N. American Journal of Science, 283, 510-586.
39. SMITH, D.I. 1979. Caledonian minor intrusions in the N. Highlands of Scotland. In: HARRIS, A.L., HOLLAND, C.H. & LEAKE, B.E. (eds) The Caledonides of the British Isles - Reviewed. Geological Society, London, Special Publications, 8, 683-698.
40. SOPER, N.J. 1994. Was Scotland a Vendian RRR junction? Journal of the Geological Society, London, 151, 579-582.
41. _ & ANDERTON, R. 1984. Did the Dalradian slides originate as extensional faults? Nature, 307, 357-360.
42. _ & ENGLAND, R.W. 1995. Vendian and Riphean rifting in NW Scotland. Journal of the Geological Society, London, 152, 11-14.
43. _ & HARRIS, A.L. 1997. Proterozoic orogeny questioned: a view from Scottish Highland Field Workshops, 1995-1996. Scottish Journal of Geology, 33, 187-190.
44. _, _ & STRACHAN, R.A. 1998. Tectonostratigraphy of the Moine Supergroup: a synthesis. Journal of the Geological Society, London, 155, 13-24.
45. STACEY, J.S. & KRAMERS, J.D. 1975. Approximation of terrestrial lead isotope evolution by a two-stage model. Earth and Planetary Science Letters, 26, 207-221.
46. 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.
47. TANNER, P.W.G., JOHNSTONE, G.S., SMITH, D.I. & HARRIS, A.L. 1970. Moinian stratigraphy and the problem of the Central Ross-shire inliers. Bulletin of the Geological Society of America, 81, 299-306.
48. VANCE, D., STRACHAN, R.A. & JONES, K.A. 1998. Extensional versus orogenic settings for metamorphism: garnet chronometry and pressure-temperature-time histories in the Moine Supergroup, northwest Scotland. Geology, 26, 927-930.
49. WINCHESTER, J.A. 1976. Different Moinian amphibolite suites in northern Ross-shire. Scottish Journal of Geology, 13, 187-204.
50. _ 1984. The geochemistry of the Strathconon amphibolites, northern Scotland. Scottish Journal of Geology, 20, 37-51.