Magnetic fabric of the Barrington Passage pluton, Meguma Terrane, Nova Scotia: A two-stage fabric history of syntectonic emplacement

Tectonophysics

Volumn 307, Issue 1-2, 1999, Pages 75-92

  Pignotta, G S ^a,b   Benn, K ^a  

^a UNIVERSITY OF OTTAWA   (Canada)

^b UNIVERSITY OF SOUTHERN CALIFORNIA   (United States)

Author keywords

Fabric; Granite; Pluton; Tectonics

Indexed keywords

EMPLACEMENT; GRANITE; ROCK MICROSTRUCTURE; TECTONIC SETTING;

CANADA;

EID: 0033603175     PISSN: 00401951     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-1951(99)00119-5     Document Type: Article

References (61)

1. Benn, K., 1994. Overprinting of magnetic fabrics in granites by small strains: Numerical modelling. Tectonophysics 233, 153-162.
2. Benn, K., Rochette, P., Bouchez, J.L., Hattori, K., 1993. Magnetic susceptibility, magnetic mineralogy and magnetic fabrics in a late archean granitoid-gneiss belt. Precambrian Res. 63, 59-81.
3. Benn, K., Horne, R.J., Kontak, D.J., Pignotta, G., Evans, N.G., 1997. Syn-Acadian emplacement model for the south mountain batholith, meguma terrane, Nova Scotia: Magnetic fabric and structural analyses. Geol. Soc. Am. Bull. 109, 1279-1293.
4. Benn, K., Ham, N.M., Pignotta, G.S., Bleeker, W., 1998a. Emplacement and deformation of granites during transpression: Magnetic fabrics of the archean sparrow pluton, Slave Province, Canada. J. Struct. Geol. 20, 1247-1259.
5. Benn, K., Odonne, F., Saint Blanquat, M., 1998b. Pluton emplacement during transpression in brittle crust: New views from analogue experiments. Geology 26, 1079-1082.
6. Benn, K., Roest, W.R., Rochette, P., Evans. N.G., Pignotta, G.S., 1999. Geophysical and structural signatures of syntectonic batholith construction: The south mountain batholith, meguma terrane, Nova Scotia. Geophys. J. Int. 136, 144-158.
7. Berger, A., Rosenberg, C, Schmid, S.M., 1996. Ascent, emplacement and exhumation of the bergell pluton within the Southern Steep Belt of the Central alps. Schweiz. Mineral. Petrogr. Mitt. 76, 357-382.
8. Blanchard, J.-P., Boyer, P., Gagny, C., 1979. Un nouveau critère de sens de mise en place dans une caisse filonienne: le 'pincement' des minéraux aux épontes. Tectonophysics 53, 1-25.
9. Borradaile, G.J., Werner, T., 1994. Magnetic anisotropy of some phyllosilicates. Tectonophysics 235, 223-248.
10. Bouchez, J.L., 1997. Granite is never isotropic: An introduction to AMS studies of granitic rocks. In: Bouchez, J.L., Hutton, D.H.W., Stephens, W.E. (Eds.), Granite: From Segregation of Melt to Emplacement Fabrics. Kluwer, Dordrecht, pp. 95-112.
11. Bouchez, J.L., Gleizes, G., 1995. Two-stage deformation of the Mont-Louis-Andorra granite pluton (Variscan Pyrenees) inferred from magnetic susceptibility anisotropy. J. Geol. Soc. London 152, 669-679.
12. Bouchez, J.L., Gleizes, G., Djouadi, T., Rochette, P., 1990. Microstructure and magnetic susceptibility applied to emplacement kinematics of granites: The example of the Foix pluton (French Pyrenees). Tectonophysics 184, 157-171.
13. Bouchez, J.L., Delas, C., Gleizes, G., Nédélec, A., Cuney, M., 1992. Submagmatic microfractures in granites. Geology 20, 35-38.
14. Clarke, D.B., Chatterjee, A.K., Giles, P.S., 1993. Petrochemistry, tectonic history, and Sr-Nd systematics of the liscomb Complex, meguma lithotectonic zone, Nova Scotia. Can. J. Earth Sci. 30, 449-464.
15. Clarke, D.B., Henry, A.S., White. M.A.. 1998. Exploding xenoliths and the absence of 'elephants' graveyards' in granite batholiths. J. Struct. Geol. 20, 1325-1343.
16. Cruden, A.R., Launeau, P., 1994. Structure, magnetic fabric and emplacement of the archean lebel stock, SW Abitibi Greenstone Belt. J. Struct. Geol. 16, 677-691.
17. Culshaw, N., Liesa, M., 1997. Alleghanian reactivation of the Acadian fold belt, meguma zone, Southwest Nova Scotia. Can. J. Earth Sci. 34, 833-847.
18. 39 mineral ages. Can. J. Earth Sci. 24, 1242-1254.
19. Dallmeyer, R.D., Keppie, J.D., 1988. Superposed late paleozoic thermal events in the southwestern meguma terrane, Nova Scotia. Marit. Sediments Atl. Geol. 24, 157-169.
20. Davidson, C., Rosenberg, C., Schmid, S.M., 1996. Synmagmatic folding of the base of the bergell pluton, central alps. Tectonophysics 265, 213-238.
21. Day, R., Fuller, M., Schmidt, V.A., 1977. Hysteresis properties of titanomagnetites: Grain-size and compositional dependence. Phys. Earth Planet. Inter. 13, 260-267.
22. Fernandez, A., Fernández-Catuxo, J., 1997. 3D biotite shape fabric experiments under simple shear strain. In: Bouchez, J.L., Hutton, D.H.W., Stephens, W.E. (Eds.), Granite: From Segregation of Melt to Emplacement Fabrics. Kluwer, Dordrecht, pp. 145-157.
23. Fernandez, A.N., Gasquet, D.R., 1994. Relative rheological evolution of chemically contrasted coeval magmas: Example of the tichka plutonic complex (Morocco). Contrib. Mineral. Petrol. 116, 316-326.
24. Gleizes, G., Leblanc, D., Bouchez, J.L., 1997. Variscan granites of the Pyrenees revisited: Their role as syntectonic markers of the orogen. Terra Nova 9, 38-41.
25. Heider, F., Dunlop, D.J., Sugiura, N., 1987. Magnetic properties of hydrothermally recrystallized magnetite crystals. Science 236, 1287-1290.
26. Heider, F., Zitzelsberger, A., Fabian, K., 1996. Magnetic susceptibility and remanent coercive force in grown magnetite crystals from 0.1 μm to 6 mm. Phys. Earth Planet. Inter. 93, 239-256.
27. Hicks, R.J., Jamieson, R.A., Reynolds, P.H., 1999. Detrital and metamorphic 40Ar/39Ar ages from muscovite and whole-rock samples, meguma supergroup, Southern Nova Scotia. Can. J. Earth Sci. (in press).
28. Hill, J.D., 1991. Petrology, tectonic setting, and economic potential of Devonian peraluminous granitoid plutons in the Canso and forest hills areas, eastern meguma terrane, Nova Scotia. Geol. Surv. Can. Bull. 383, 96 pp.
29. Horne, R.J., MacDonald, M.A., Corey, M.C., Ham, L.J., 1992. Structure and emplacement of the south mountain batholith, Southwestern Nova Scotia. Atl. Geol. 28, 29-50.
30. Jackson, M., 1991. Anisotropy of magnetic remanence: A brief review of mineralogical sources, physical origins and geological applications. Pure Appl. Geophys. 136, 1-28.
31. Jansa, L.F., Pe-Piper, G., Loncarevic, B.D., 1993. Appalachian basement and its intrusion by cretaceous dykes, offshore Southeast Nova Scotia, Canada. Can. J. Earth Sci. 30, 2495-2509.
32. Jelinek, V, 1978. Statistical processing of anisotropy of magnetic susceptibility measured on groups of specimens. Stud. Geophys. Geod. 22, 50-62.
33. Keen, C.E., Kay, W.A., Keppie, D., Marillier, F., Pe-Piper, G., Waldron, J.W.F., 1991. Deep seismic reflection data from the bay of fundy and gulf of maine: Tectonic implications for the northern appalachians. Can. J. Earth Sci. 28, 1096-1111.
34. Keppie, J.D., Dallmeyer, R.D., 1987. Dating transcurrent terrane accretion: An example from the meguma and Avalon composite terranes in the northern appalachians. Tectonics 6, 831-847.
35. Keppie, J.D., Dallmeyer, R.D., 1995. Late paleozoic collision, delamination, and short-lived magmatism, and rapid denudation in the meguma terrane (Nova Scotia, Canada): Constraints from Ar40/Ar39 isotopic data. Can. J. Earth Sci. 32, 644-659.
36. Keppie, J.D., Dallmeyer, R.D., Krogh, T.E., Aftalion, A., 1993. Dating mineralization using several isotopic methods: And example from the south mountain batholith, Nova Scotia, Canada. Chem. Geol. 103, 251-270.
37. 39Ar dating of metamorphic and igneous rocks of the liscomb complex, meguma terrane, Southern Nova Scotia, Canada. Can. J. Earth Sci. 31, 1643-1653.
38. Launeau, P., Gruden, A.R., 1998. Magmatic fabric acquisition mechanisms in a syenite: Results of a combined anisotropy of magnetic susceptibility and image analysis study. J. Geophys. Res. 103, 5067-5089.
39. Launeau, P., Robin, P.-Y., 1996. Fabric analysis using the intercept method. Tectonophysics 267, 91-119.
40. Launeau, P., Bouchez, J.L., Benn, K., 1990. Shape preferred orientation of object populations: Automatic analysis of digitized images. Tectonophysics 180, 201-211.
41. Leblanc, D., Gleizes, G., Lespinasse, P., Olivier, P., Bouchez, J.L., 1994. The maladeta granite polydiapir, Spanish Pyrenees: A detailed magneto-structural study. J. Struct. Geol. 16, 223-235.
42. Leblanc, D., Gleizes, G., Roux, L., Bouchez, J.L., 1996. Variscan dextral transpression in the French Pyrenees: New data from the pic des trois-seigneurs granodiorite and its country rocks. Tectonophysics 261, 331-345.
43. Mawer, C.K., White, J.C., 1987. Sense of displacement on the cobequid-Chedabucto fault system, Nova Scotia, Canada. Can. J. Earth Sci. 24, 217-223.
44. Mawer, C.K., Williams, P.F., 1986. Structural study of highly deformed meguma phyllite and granite, vicinity of white head village, S.E. Nova scotia. Marit. Sediments Atl. Geol. 22, 51-64.
45. O'Reilly, W., 1984. Rock and Mineral Magnetism. Chapman and Hall, New York, 220 pp.
46. Paterson, S.R., Vernon, R.H., Tobisch, O.T., 1989. A review of criteria for the identification of magmatic and tectonic foliations in granitoids. J. Struct. Geol. 11, 349-363.
47. 39Ar and fission track dating of intrusive rocks. Can. J. Earth Sci. 24, 1952-1965.
48. Rochette, P., 1987. Magnetic susceptibility of the rock matrix related to magnetic fabric studies. J. Struct. Geol. 9, 1015-1020.
49. Rosenberg, C., Berger, A., Schmid, S.M., 1995. Observations from the floor of a granitoid pluton: Inferences on the driving force of final emplacement. Geology 23, 443-446.
50. Saint Blanquat, M., Tikoff, B., 1997. Development of magmatic to solid-state fabrics during syntectonic emplacement of the mono creek granite, Sierra Nevada batholith. In: Bouchez, J.-L., Hutton, D.H., Stephens, W.E. (Eds.), Granites: From Segregation of Melt to Emplacement Fabrics. Kluwer, Dordrecht, pp. 231-252.
51. Schenk, P.E., 1995a. Meguma zone. In: Williams, H. (Ed.), Geology of the Appalachian-Caledonian Orogen in Canada and Greenland. Geology of Canada 6, Geological Survey of Canada, Ottawa, Ont., pp. 261-277.
52. Schenk, P.E., 1995b. Annapolis belt. In: H. Williams (Editor), Geology of the Appalachian-Caledonian Orogen in Canada and Greenland. Geology of Canada 6, Geological Survey of Canada, Ottawa, Ont., pp. 367-383.
53. Tate, M.C., Clarke, D.B., 1995. Petrogenesis and regional tectonic significance of late Devonian mafic intrusions in the meguma zone, Nova Scotia. Can. J. Earth Sci. 32, 1883-1898.
54. Tate, M.C., Clarke, D.B., 1997. Compositional diversity among late Devonian peraluminous granitoid intrusions in the meguma zone of Nova Scotia, Canada. Lithos 39, 179-194.
55. Tate, M.C., Clarke, D.B., Heaman, L.M., 1997. Progressive hybridisation between late Devonian mafic-intermediate and felsic magmas in the meguma zone of Nova Scotia, Canada. Contrib. Mineral. Petrol. 126, 401-415.
56. Tobisch, O.T., Cruden, A.R., 1995. Fracture-controlled magma conduits in an obliquely convergent continental magmatic arc. Geology 23, 941-944.
57. Vigneresse, J.L., 1995. Control of granite emplacement by regional deformation. Tectonophysics 249, 173-186.
58. Vigneresse, J.L., Barbey, P., Cuney, M., 1996. Rheological transitions during partial melting and crystallization with application to felsic magma segregation and transfer. J. Petrol. 37, 1579-1600.
59. Williams, H., Hatcher, R.H.J., 1982. Suspect terranes and accretionary history of the appalachian orogen. Geology 10, 530-536.
60. Williams, P.F., Hy, C, 1990. Origin and deformational and metamorphic history of gold-bearing quartz veins on the Eastern Shore of Nova Scotia. In: Sangster, A.L. (Ed.), Mineral Deposit Studies in Nova Scotia l. Geol. Surv. Can. Pap. 90-8, pp. 169-194.
61. Williams, P.F., Goodwin, L.B., Lafrance, B., 1995. Brittle faulting in the Canadian appalachians and the interpretation of reflection seismic data. J. Struct. Geol. 17, 215-232.