Occurrence of early Carboniferous high-Zr rhyolites, Cobequid Highlands, Nova Scotia: Temperature effect of a contemporaneous mafic magma

Canadian Mineralogist

Volumn 37, Issue 3, 1999, Pages 619-634

  Piper, David J W ^a   Dessureau, Gilles ^a   Pe Piper, Georgia ^b  

^a GEOLOGICAL SURVEY OF CANADA   (Canada)

^b SAINT MARY S UNIVERSITY   (Canada)

Author keywords

Carboniferous; Nova Scotia; Rhyolite; Zirconium

Indexed keywords

CARBONIFEROUS; PETROLOGY; RHYOLITE; ZIRCONIUM;

CANADA;

EID: 0033382004     PISSN: 00084476     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (44)

1. BARR, S.M., MACDONALD, A.S., ARNOTT, A.A. & DUNNING, G.R. (1996): Field relations, structure and geochemistry of the Fisset Brook Formation in the Lake Ainslie - Gillanders Mountain area, central Cape Breton island. Nova Scotia. Atlantic Geol. 31, 127-139.
2. _ & PETERSON, K.C.A. (1998): Field relationships and petrology of the Late Devonian Fisset Brook Formation in the Cheticamp area, western Cape Breton Island, Nova Scotia. Atlantic Geol. 34, 121-132.
3. BLANCHARD, M.-C., JAMIESON, R.A. & MORE, E.B. (1984): Late Devonian - Early Carboniferous volcanism in western Cape Breton Island, Nova Scotia. Can. J. Earth Sci. 21, 762-774.
4. BRADLEY, D.C. (1982): Subsidence in late Paleozoic basins in the northern Appalachians. Tectonics 1, 1015-1037.
5. COLLINS, W.J., BEAMS, S.D., WHITE, A.J.R. & CHAPPELL, B.W. (1982): Nature and origin of A-type granites with particular reference to south-eastern Australia. Contrib. Mineral. Petrol. 80, 189-200.
6. DESSUREAU, G., PIPER, D.J.W. & PE-PIPER, G. (1999): Geochemical evolution of earliest Carboniferous continental tholeiitic basalts along a crustal-scale shear zone, southwestern Maritimes basin, eastern Canada. Lithos (in press).
7. DOIG, R., MURPHY, J.B., PE-PIPER, G. & PIPER, D.J.W. (1996): U-Pb geochronology of late Paleozoic plutons, Cobequid Highlands. Nova Scotia, Canada: evidence for late Devonian emplacement adjacent to the Meguma-Avalon terrane boundary in the Canadian Appalachians. Geol. J. 31, 179-188.
8. DONOHOE, H.V. & WALLACE, P.I. (1982): Geological Map of the Cobequid Highlands, Nova Scotia. Nova Scotia Department of Mines and Energy, Halifax, Nova Scotia.
9. DOSTAL, J., DUPUY, C. & KEPPIE, J.D. (1983b): Uranium and thorium in Paleozoic rhyolites of Nova Scotia. Can. J. Earth Sci. 20, 266-274.
10. _, KEPPIE, J.D. & DUPUY, C. (1983a): Petrology and geochemistry of Devono-Carboniferous volcanic rocks in Nova Scotia. Maritime Sediments and Atlantic Geol. 19, 59-71.
11. DUNNING, G., PIPER, D.J.W., GILES, P.S., PE-PIPER, G. & BARR, S. (1997): Chronology of the early phases of rifting of the Devonian-Carboniferous Magdalen Basin in Nova Scotia from U/Pb dating of rhyolites. Geol. Assoc. Can. - Mineral. Assoc. Can., Program Abstr. 22, A23.
12. DURLING, P. (1996): A seismic reflection study of the Fountain Lake Group in the Scotsburn Anticline area, northern Nova Scotia. Geol. Surv. Can., Pap. 96-1D, 47-53.
13. EBY, G.N. (1990): The A-type granitoids: a review of their occurrence and chemical characteristics and speculations on their petrogenesis. Lithos 26, 115-134.
14. _ (1992): Chemical subdivision of the A-type granitoids: petrogenetic and tectonic implications. Geology 20, 641-644.
15. EVANS, O.C. & HANSON, G.N. (1993): Accessory-mineral fractionation of rare-earth element (REE) abundances in granitoid rocks. Chem. Geol. 110, 69-93.
16. FYFFE, L.R. & BARR, S.M. (1986): Petrochemistry and tectonic significance of Carboniferous volcanic rocks in New Brunswick. Can. J. Earth Sci. 23, 1243-1256.
17. GOWER, D.P. (1988): Geology and Genesis of Uranium Mineralization in Subaerial Felsic Volcanic Rocks of the Byers Brook Formation and the Comagmatic Hart Lake Granite, Wentworth Area, Cobequid Highlands, Nova Scotia. M.Sc. thesis, Memorial Univ. of Newfoundland, St. John's, Newfoundland.
18. HILDRETH, W. (1981): Gradients in silicic magma chambers: implications for lithospheric magmatism. J. Geophys. Res. 86, 10153-10192.
19. KEPPIE, J.D. (1982): The Minas geofracture. In Major Structural Zones and Faults of the Northern Appalachians (P. St-Julien & J. Béland, eds.). Geol Assoc. Can., Spec. Pap. 24, 263-280.
20. KEPPLER, H. (1993): Influence of fluorine on the enrichment of high field strength trace elements in granitic rocks. Contrib. Mineral Petrol. 114, 479-488.
21. KOUKOUVELAS, I., PE-PIPER, G. & PIPER, D.J.W. (1996): Pluton emplacement by wall-rock thrusting, hanging-wall translation and extensional collapse: latest Devonian plutons of the Cobequid fault zone, Nova Scotia, Canada. Geol. Mag. 133, 285-298.
22. MANIAR, P.D. & PICCOLI, P.M. (1989): Tectonic discrimination of granitoids. Geol. Soci. Am., Bull. 101, 635-643.
23. MARR, R.A., BAKER, D.A. & WILLIAMS-JONES, A.E. (1998): Chemical controls on the solubility of Zr-bearing phases in simplified peralkaline melts and application to the Strange Lake intrusion, Quebec-Labrador. Can. Mineral. 36, 1001-1008.
24. MUNGALL, J.E. & MARTIN, R.F. (1996): Extreme differentiation of peralkaline rhyolite, Terceira, Azores: a modern analogue of Strange Lake, Labrador? Can. Mineral. 34, 769-777.
25. PEARCE, J.A., HARRIS, N.B.W. & TINDLE, A.G. (1984): Trace element discrimination diagrams for tectonic interpretation of granitic rocks. J. Petrol. 25, 956-983.
26. PE-PIPER, G., CORMIER, R.F. & PIPER, D.J.W. (1989): The age and significance of Carboniferous plutons of the western Cobequid Hills, Nova Scotia. Can. J. Earth Sci. 26, 1297-1307.
27. _, KOUKOUVELAS, I. & PIPER, D.J.W. (1998): Synkinematic granite emplacement in a shear zone: the Pleasant Hills pluton, Canadian Appalachians. Geol. Soc. Am., Bull. 110, 523-536.
28. _ & PIPER, D.J.W. (1996): Geochemical and structural evolution of the Pleasant Hills pluton, Cobequid Highlands, Nova Scotia, Canada. Geol. Surv. Can., Open-File Rep. 3372.
29. _ & _ (1998): Geochemical evolution of Devonian-Carboniferous igneous rocks of the Magdalen basin, Eastern Canada: Pb- and Nd-isotope evidence for mantle and lower crustal sources. Can. J. Earth Sci. 35, 201-221.
30. _, _ & CLERK, S.B. (1991): Persistent mafic igneous activity in an A-type granite pluton, Cobequid Highlands, Nova Scotia. Can. J. Earth Sci. 28, 1058-1072.
31. _, ZEEMAN, M. & PIPER, D.J.W. (1996): Magmatic significance of the relationships between the mafic and felsic phases of the Folly Lake pluton, Cobequid Highlands, Nova Scotia. Geol. Surv. Can., Pap. 96-1E, 27-33.
32. PIPER, D.J.W., DURLING, P. & PE-PIPER, G. (1996b): Field evidence for the extent and style of overthnisting along the northeastern margin of the Cobequid Highlands, Nova Scotia. Geol. Surv. Can., Pap. 96-1D, 41-46.
33. _, PE-PIPER, G. & LONCAREVIC, B.D. (1993): Devonian - Carboniferous igneous intrusions and their deformation, Cobequid Highlands, Nova Scotia. Atlantic Geol. 29, 219-232.
34. _, _ & PASS, D.J. (1996a): The stratigraphy and geochemistry of late Devonian to early Carboniferous volcanic rocks of the northern Chignecto peninsula, Cobequid Highlands, Nova Scotia. Atlantic Geol. 32, 39-52.
35. STRECKEISEN, A. (1976): To each plutonic rock its proper name. Earth-Sci. Rev. 12, 1-33.
36. TAYLOR, S.R. & MCLENNAN, S.M. (1985): The Continental Crust: its Composition and Evolution. Blackwell, Oxford, U.K.
37. TUCKER, R.D., BRADLEY, D.C., VER STRAATEN, C., HARRIS, A.J., EBERT, J.R. & MCCUTCHEON, S.R. (1998): New U-Pb zircon ages and the duration and division of Devonian time. Earth Planet. Sci. Lett. 158, 175-186.
38. UTTING, J., KEPPIE, J.D. & GILES, P.S. (1989): Palynology and stratigraphy of the Lower Carboniferous Horton Group, Nova Scotia. Geol. Surv. Can., Bull. 396, 117-143.
39. VERVOORT, J.D. & GREEN J.C. (1997): Origin of evolved magmas in the Midcontinent rift system, northeast Minnesota: Nd-isotope evidence for melting of Archean crust. Can. J. Earth Sci. 34, 521-535.
40. WATSON, E.B. & HARRISON, T.M. (1983): Zircon saturation revisited: temperature and composition effects in a variety of crustal magma types. Earth Planet. Sci. Lett. 64, 295-304.
41. _ & _ (1984): Accessory minerals and the geochemical evolution of crustal magmatic systems: a summary and prospectus of experimental approaches. Phys. Earth Planet. Inter. 35, 19-30.
42. WHALEN, J.B., CURRIE, K.L. & CHAPPELL, B.W. (1987): A-type granites: geochemical characteristics, discrimination and petrogenesis. Contrib. Mineral. Petrol. 95, 407-419.
43. WILKINSON, J.J., NOLAN, J. & RANKIN, A.H. (1996): Silicothermal fluid: a novel medium for mass transport in the lithosphere. Geology 24, 1059-1062.
44. WINCHESTER, J.A. & FLOYD, P.A. (1977): Geochemical discrimination of different magma series and their differentiation products using immobile elements. Chem. Geol. 20, 325-343.