Advertisement

Contributions to Mineralogy and Petrology

, Volume 105, Issue 4, pp 473–485 | Cite as

1.1 Ga K-rich alkaline plutonism in the SW Grenville Province

U−Pb constraints for the timing of subduction-related magmatism
  • Louise Corriveau
  • Larry M. Heaman
  • Franco Marcantonio
  • Otto van Breemen
Article

Abstract

U−Pb zircon and baddeleyite dating of six syenitic stocks establishes that the ultrapotassic, potassic alkaline and shoshonitic magmatism with island-arc affinities in the Central Metasedimentary Belt (CMB) of the southwestern Grenville Province, Canada took place between 1089 and 1076 Ma, along a 400-km-long, northeast-trending plutonic belt. These ages indicate that ultrapotassic rocks with arc affinities are not unique to the Phanerozoic. West to east emplacement ages along a northern and southern cross-section of this belt range from 1083±2 Ma (Kensington), through 1081±2 Ma (Lac Rouge) to 1076 −1 +3 Ma (Loranger) in the north, and from 1089 −3 +4 Ma (loon Lake) and 1088±2 Ma (Calabogie), to 1076±2 Ma (Westport) in the south. Although closely spaced in time, in detail these ages suggest a slight younging of this magmatic activity to the southeast. Integration of the geochronological data with the spatial extent and potassic character of the plutons shows that the K-rich alkaline suite is distinct from the nepheline-syenite belt of the Bancroft terrane and from the syenite-monzonite suite of the Frontenac terrane of the CMB, and it is considered to be a magmatic episode unique to the Elzevir terrane and its Gatineau segment. The timing and the postmetamorphic emplacement of these plutons indicate that the regional greenschist to granulite-facies metamorphism of the country rock (precise age unknown) is older than 1089 Ma throughout the entire Elzevir terrane. The potassic magmatism is interpreted as the initiation of the 1090–1050 Ma Ottawan Orogeny in the Elzevir terrane; thus, the regional metamorphism in this terrane, previously assigned to the Ottawan Orogeny, is an earlier event. The contemporaneous emplacement of this postmetamorphic plutonic belt with Keweenawan volcanism is at variance with current tectonic models which consider the Keweenawan rift to be formed at the same time as regional metamorphism in the CMB.

Keywords

Regional Metamorphism Baddeleyite Plutonic Belt Alkaline Plutonism Ultrapotassic Rock 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Abdel Rahman A-FM, Martin RF (1987) The Deloro anorogenic igneous complex, Madoc, Ontario. 1 Geochemistry and feldspar mineralogy of the felsic plutonic rocks. Can Mineral 25:321–336Google Scholar
  2. Anderson JL (1983) Proterozoic anorogenic granite plutonism of North America. Geol Soc Am Mem 161:133–154Google Scholar
  3. Anderson SL, Burke K (1983) A Wilson cycle approach to some Proterozoic problems in eastern North America. Geol Soc Am Mem 161:75–93Google Scholar
  4. Baer AJ (1974) Grenville geology and plate tectonics. Geoscience Can 1:54–61Google Scholar
  5. Bartlett JR (1983) Stratigraphy, physical volcanology and geochemistry of the Belmont Lake metavolcanic complex, southeastern Ontario. MSc thesis, Carleton University, Ottawa, CanadaGoogle Scholar
  6. Bell K, Blenkinsop J (1980) Whole rock Rb−Sr studies in the Grenville Province of southeastern Ontario and western Québec —a summary of report. Geol Surv Can Pap 80-1C:152–154Google Scholar
  7. Bergman SC (1987) Lamproites and other potassium-rich igneous rocks: a review of their occurrence, mineralogy and geochemistry. In: Fitton JG, Upton BGJ (eds) Alkaline rocks. Geol Soc Lond Spec Publ 30:103–190Google Scholar
  8. Britton JM (1979) Late-tectonic syenite and granite plutons of the Grenville Province of southwest Quebec and southeast Ontario. Geol Surv Can Pap 79-1B:163–166Google Scholar
  9. Brock BS, Moore JM (1983) Chronology, chemistry, and tectonics of igneous rocks in terranes of the Grenville Province, Canada. Geol Soc Am Prog Abstr 15:533Google Scholar
  10. Corriveau L (1985) Precambrian syenitic plutons, Central Metasedimentary Belt, Grenville Province of Québec. Geol Surv Can Pap 85-1A:165–174Google Scholar
  11. Corriveau L (1989) Proterozoic potassium-rich alkaline plutonism in the southwestern Grenville Province. PhD thesis, McGill University, Montréal, CanadaGoogle Scholar
  12. Corriveau L (1990) Proterozoic subduction and terrane amalgamation in the southwestern Grenville Province, Canada: Evidence from ultrapotassic to shoshonitic plutonism. Geology (in press)Google Scholar
  13. Corriveau L, Gorton MP (1989) Potassic alkaline and shoshonitic plutonism in the SW Grenville province. Geol Soc Am Abstr Progr 21:A107Google Scholar
  14. Currie KL (1976) The alkaline rocks of Canada. Geol Surv Can Bull 239:198–201Google Scholar
  15. Davidson A (1986) New interpretation in the southwestern Grenvill Province. Geol Assoc Can Spec Pap 31:61–74Google Scholar
  16. Davidson A, van Breemen O (1989) Baddeleyite-zircon relationship in coronitic metagabbro, Grenville Province, Ontario: implications for geochronology. Contrib Mineral Petrol 100:291–299Google Scholar
  17. Davis DW (1982) Optimum linear regression and error estimation applied to U−Pb data. Can J Earth Sci 19:2141–2149Google Scholar
  18. Davis DW, Bartlett JR (1988) Geochronology of the Belmont Lake metavolcanic complex and implications for crustal development in the Central Metasedimentary Belt, Grenville Province, Ontario. Can J Earth Sci 25:1751–1759Google Scholar
  19. Davis DW, Sutcliffe RH (1985) U−Pb ages from the Nipigon plate and northern Lake Superior. Geol Soc Am Bull 96:1572–1579Google Scholar
  20. Doig R, Barton Jr JM (1968) Ages of carbonatites and other alkaline rocks in Québec. Can J Earth Sci 5:1401–1407Google Scholar
  21. Dostal J (1975) Geochemistry and petrology of the Loon Lake pluton, Ontario. Can J Earth Sci 12:1331–1345Google Scholar
  22. Eby GN (1985) Age relations, chemistry, and petrogenesis of mafic alkaline dykes from the Monteregian Hills and younger White Mountain igneous Provinces. Can J Earth Sci 22:1103–1111Google Scholar
  23. Foland KA, Faul H (1977) Ages of the White Mountain intrusives — New Hampshire, Vermont, and Maine, USA. Am J Sci 277:888–904Google Scholar
  24. Foley SF, Venturelli G, Green DH, Toscani L (1987) The ultrapotassic rocks: characteristics, classification, and constraints for petrogenetic models. Earth Sci Rev 24:81–134Google Scholar
  25. Forsyth DA, Thomas MD, Real D, Abinett D, Broome J, Halpenny J (1990) Geophysical investigations of the Central Metasedimentary Belt, Grenville Province: Québec to northern New York State. In: Mason R (ed) Proceedings of the 7th International Conference on Basement Tectonics, Kingston (in press)Google Scholar
  26. Gauthier M (1982) Métallogénic du zinc dans la région de Maniwaki-Gracefeild, Québec. Min Energie Res Qué MM 82-03Google Scholar
  27. Gordon MB, Hempton MR (1986) Collision-induced rifting: the Grenville Orogeny and the Keweeawan rift of North America. Tectonophys 127:1–25Google Scholar
  28. Hanmer S (1987) Ductile thrusting at mid-crustal level, southwestern Grenville Province. Can J Earth Sci 25:1049–1059Google Scholar
  29. Heaman LM, Machado N (1987) Isotope geochemistry of the Coldwell alkaline complex. I U−Pb studies on accessory minerals. Geol Assoc Can Miner Assoc Can Prog Abstr 12:54Google Scholar
  30. Heaman LM, Shieh Y-N, McNutt RH, Shaw DM (1982) Isotopic and trace element study of the Loon Lake pluton, Grenville Province, Ontario. Can J Earth Sci 19:1045–1054Google Scholar
  31. Heaman LM, McNutt RH, Krogh TE (1986) Geological significance of U−Pb and Rb−Sr ages from two pre-tectonic granites from the Central Metasedimentary Belt, Ontario. Geol Assoc Can Spec Pap 31:209–221Google Scholar
  32. Heaman LM, Davis DW, Krogh TE, Lumbers SB (1987) Geological evolution of the Central Metasedimentary Belt (CMB), Ontario: a U−Pb perspective. Geol Assoc Can Miner Assoc Can Prog Abstr 12:54Google Scholar
  33. Higgins MD (1985) Geochemical evolution of the Chatham-Grenville stock, Québec. Can J Earth Sci 22:872–880Google Scholar
  34. Hoffman P (1988) United plates of America, the birth of a craton: early Proterozoic assembly and growth of America. Ann Rev Earth Planet Sci 16:543–603Google Scholar
  35. Jaffey AH, Flynn KF, Glendenin LE, Bentley WC, Essling AM (1971) Precision measurement of half-lives and specific activities of 235U and 238U. Phys Rev C 4:1889–1906Google Scholar
  36. Kamo SL, Heaman LM, Lumbers SB (1989) Age for a lamprophyre dyke, Callander Bay, Ontario; use of Ti-bearing minerals as a potential geochronometer. Geol Assoc Can Miner Assoc Can Prog Abstr 14:A41Google Scholar
  37. Krogh TE (1973) A low-contamination method for hydrothermal decomposition of zircon and extraction of U and Pb for isotopic age determinations. Geochim Cosmochim Acta 37:485–494Google Scholar
  38. Krogh TE (1982) Improved accuracy of U−Pb ages by the creation of more concordant systems using an air abrasion technique. Geochim Cosmochim Acta 46:637–649Google Scholar
  39. Krogh TE, Davis GL (1975) The production and preparation of 205Pb for use as a tracer for isotope dilution analysis. Carnegie Inst Washington Yearb 74:416–417Google Scholar
  40. Krogh TE, Hurley PM (1968) Strontium isotope variation and whole-rock isochron studies, Grenville Province, Ontario. J Geophys Res 73:7107–7125Google Scholar
  41. Le Bas MJ (1987) Ultra-alkaline magmatism with or without rifting. Tectonophys 143:75–84Google Scholar
  42. Luhr JF, Allen JF, Carmichael ISE, Nelson SA (1989) Primitive calc-alkaline and alkaline rock types from the western Mexican volcanic belt. J Geophys Res 94:4515–4530Google Scholar
  43. Lumbers SB (1982) Summary of metallogeny Renfrew County area. Ont Geol Surv Rep 212Google Scholar
  44. Lumbers SB, Heaman LM, Vertolli VM, Wu T-W (1990) Nature and timing of Middle Proterozoic magmatism in the Central Metasedimentary Belt, Grenville Province, Ontario. Geol Soc Can Spec Pap (in press)Google Scholar
  45. Marcantonio F (1989) Isotopic studies of plutonic and metamorphic rocks from the Frontenac Arch, Grenville Province of Ontario and Islay, in the southern inner Hebrides of Scotland. MSc thesis, McMaster University, Hamilton, CanadaGoogle Scholar
  46. Marcantonio F, Dickin AP, Heaman LM, McNutt RH (1988) The age and origin of granites from the Westport-Gananoque area, Grenville Province, Ontario. Geol Assoc Can Miner Assoc Can Prog Abstr 13:A78Google Scholar
  47. McLelland JM, Isachsen YW (1986) Synthesis of geology of the Adirondack Mountains, New York, and their tectonic setting within the southwestern Grenville Province. Geol Assoc Can Spec Pap 31:75–94Google Scholar
  48. McLelland JM, Chiarenzelli J, Whitney P, Isachsen YW (1988) U−Pb zircon geochronology of the Adirondack Mountains and implications for their geologic evolution. Geology 16:920–924Google Scholar
  49. Miller RM (1985) Age and petrological relationships of some igneous-textured and gneissic alkaline rocks in the Haliburton-Bancroft area. PhD thesis University of Toronto, Toronto, CanadaGoogle Scholar
  50. Moore JM (1986) Introduction: the “Grenville problem” then and now. Geol Soc Can Spec Pap 31:1–11Google Scholar
  51. Moore JM, Thompson PH (1980) The Flinton Group: a late Precambrian metasedimentary succession in the Grenville Province of eastern Ontario. Can J Earth Sci 17:1685–1707Google Scholar
  52. Mungall JE (1989) A 1050 Ma pyroxenite-carbonatite suite near Pembrooke, Ontario. Geol Assoc Can Miner Assoc Can Prog Abstr 14:A24Google Scholar
  53. Nadeau L (1988) Structural evolution of the Central Gneiss Belt, Hunstville region, south western Grenville Province: Canadian Tectonic Group meeting, Prog AbstrGoogle Scholar
  54. Palmer HC, Davis DW (1987) Paleomagnetism and U−Pb geochronology of volcanic rocks from Michipicoten Island, Lake Superior, Canada: precise calibration of the Keweenawan polar wander track. Precambrian Res 37:157–171Google Scholar
  55. Parrish RR, Krogh TE (1987) Synthesis and purification of 205Pb for U−Pb geochronology. Isotope Geosci 66:103–110Google Scholar
  56. Parrish RR, Roddick JC, Loveridge WD, Sullivan RW (1987) Uranium-lead analytical techniques at the geochronology laboratory, Geological Survey of Canada. Geol Surv Can Pap 87-2:3–7Google Scholar
  57. Pride C, Moore JM (1983) Petrogenesis of the Elzevir Batholith and related trondhjemitic intrusions in the Grenville Province of eastern Ontario, Canada. Contrib Mineral Petrol 82:187–194Google Scholar
  58. Rivers T, Martignole J, Gower CF, Davidson A (1989) A new rectonic division of the Grenville Province, southeast Canadian Shield. Tectonics 8:63–84Google Scholar
  59. Shaw DM (1962) Chandos township. Ont Dept Mines, Geol Rep 11Google Scholar
  60. Silver LT, Lumbers SB (1966) Geochronologic studies in the Bancroft-Madoc area of the Grenville Province, Ontario. Geol Soc Am Spec Publ 87:156Google Scholar
  61. Staccy JS, Kramers JD (1975) Approximation of terrestrial lead isotope evolution by a two-stage model. Earth Plan Sci Lett 26:207–221Google Scholar
  62. Steiger RH, Jäger E (1977) Subcommission on geochronology: convention on the use of decay constants in geo- and cosmochronology. Earth Plan Sci Lett 36:359–362Google Scholar
  63. Stolz AJ, Varne R, Wheller GE, Foden JD, Abbott MJ (1988) The geochemistry and petrogenesis of K-rich alkaline volcanics from the Batu Tara volcano, eastern Sunda arc. Contrib Mineral Petrol 98:374–389Google Scholar
  64. Tabet Abdul-Malak V (1978) Le complexe alcalin de Sainte-Véronique (Québec, Canada): pétrologie et géochimie. Thèse de 3ème cycle, Université Claude Bernard, Lyon, FranceGoogle Scholar
  65. van Breemen O, Davidson A (1988) U−Pb zircon ages of granites and syenites in the Central Metasedimentary Belt, Grenville Province. Ontario. Radiogenic age and isotopic studies: Report 2. Geol Surv Can 45–50Google Scholar
  66. van Breemen O, Hammer S (1986) Zircon morphology and U−Pb geochronology in active shear zones: studies on syntectonic intrusions along the northwest boundary of the Central Metasedimentary Belt, Grenville Province, Ontario. Geol Surv Can Pap 86-1B:775–784Google Scholar
  67. Verma SP, Nelson SA (1989) Isotopic and trace element constraints on the origin and evolution of alkaline and calc-alkaline magmas in the northwestern Mexican volcanic belt. J Geophys Res 94:4531–4544Google Scholar
  68. Walker JR, Naslund HR (1986) Tectonic significance of mildly alkalinc Pliocene lavas in Klamath River Gorge, Cascade Range, Oregon. Geol Soc Am Bull 97:206–212Google Scholar
  69. Wanless RK, Stevens RD, Lachance GR, Edmonds CM (1967) Age determinations and geological studies; K−Ar isotopic ages, report 7. Geol Surv Can Pap 79-2Google Scholar
  70. Wheller GE, Varne R, Foden JD, Abbott MJ (1987) Geochemistry of Quaternary volcanism in the Sunda-Banda arc, Indonesia, and three-component genesis of island-arc basaltic magmas. J Volcan Geotherm Res 32:137–160Google Scholar
  71. Windley BF (1986) Comparative tectonics of the western Grenville and the western Himalaya. Geol Assoc Can Spec Pap 31:341–348Google Scholar
  72. Windley BF (1989) Anorogenic magmatism and the Grenvillian Orogeny. Can J Earth Sci 26:479–489Google Scholar
  73. Wynne-Edwards HR, Gregory AF, Hay PW, Giovanella CA, Reinhardt EW (1966) Mont-Laurier and Kempt Lake map-areas, Québec. Geol Surv Can Pap 66-32Google Scholar
  74. Wynne-Edwards HR (1972) The Grenville Province. Geol Assoc Can Spec Pap 11:163–182Google Scholar

Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • Louise Corriveau
    • 1
  • Larry M. Heaman
    • 2
  • Franco Marcantonio
    • 3
  • Otto van Breemen
    • 4
  1. 1.Department of geological SciencesMcGill UniversityMontréalCanada
  2. 2.Department of GeologyRoyal Ontario MuseumTorontoCanada
  3. 3.Department of GeologyMcMaster UniversityHamiltonCanada
  4. 4.Geochronlogy LaboratoryGeological Survey of CanadaOttawaCanada

Personalised recommendations