Topography of the crust-mantle interface under the Western Superior craton from gravity data

Canadian Journal of Earth Sciences

Volumn 40, Issue 10, 2003, Pages 1307-1320

  Nitescu, B ^a   Cruden, A R ^a   Bailey, R C ^a  

^a UNIVERSITY OF TORONTO   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

ALGORITHMS; DATA REDUCTION; INTERFACES (MATERIALS); RIVERS;

CRUST-MANTLE INTERFACES; CRUSTAL GRAVITY;

SEISMOLOGY;

BOUGUER ANOMALY; CRATON; CRUST-MANTLE BOUNDARY; GRAVITY SURVEY; MOHO; TOPOGRAPHY;

CANADA; NORTH AMERICA;

EID: 0442281514     PISSN: 00084077     EISSN: None     Source Type: Journal    
DOI: 10.1139/e03-042     Document Type: Article

References (32)

1. Breaks, F.W. 1991. English River Subprovince. In Geology of Ontario, Edited by P.C. Thurston, H.R. Williams, R.H. Sutcliffe, and G.M. Stott. Ontario Geological Survey, Special Vol. 4, Part 1, pp. 239-277.
2. Burg, J.-P., Sokoutis, D., and Bonini, M. 2002. Model-inspired interpretation of seismic structures in the Central Alps: crustal wedging and buckling at mature stage of collision. Geology, 30: 643-646.
3. Calvert, A.J., Cruden, A.R., Hynes, A., White, D.J., and Helmstaedt, H.H. 2003. Preservation of an Archean granite-greenstone belt by crustal-scale extension. In Programme and abstracts, 10th International Symposium on Deep Seismic Profiling of Continents and their Margins, Taupo, New Zealand, 6-10 Jan. 2003. Institute of Geological and Nuclear Sciences Information Series 52, p. 50.
4. Card, K.D., and Cieselski, A. 1986. DNAG#1. Subdivisions of the Superior Province of the Canadian Shield. Geoscience Canada, 13: 5-13.
5. Corfu, F., and Davis, D.W. 1992. A U-Pb geochronological framework for the Western Superior Province, Ontario. In Geology of Ontario. Edited by P.C. Thurston, H.R. Williams, R.H. Sutcliffe, and G.M. Stott. Ontario Geological Survey, Special Vol. 4, Part 2, pp. 1335-1346.
6. Corfu, F., and Stone, D. 1998. Age structure and orogenic significance of the Berens River composite batholiths, Western Superior Province. Canadian Journal of Earth Sciences, 35: 1089-1109.
7. Cruden, A.R., and McCaffrey, K.J.W. 2001. Growth of plutons by floor subsidence: implications for rates of emplacement, intrusion spacing and melt-extraction mechanisms. Physics and Chemistry of the Earth (A), 26: 303-315.
8. Davis, D.W. 1998. Speculations on the formation and crustal structure of the Superior province from U-Pb geochronology. In Western Superior Lithoprobe Transect 4th Annual Workshop, Toronto, Ont., Canada, 23-24 March 1998. Edited by R.M. Harrap and H.H. Helmstaedt. Lithoprobe Report 65, pp. 21-28.
9. Goodwin, A.M. 1977. Archean basin-craton complexes and the growth of Precambrian shields. Canadian Journal of Earth Sciences, 14: 2737-2759.
10. Gupta, V.K., and Barlow, R.B. 1984. A detailed gravity profile across the English River Subprovince, Northwestern Ontario. Canadian Journal of Earth Sciences, 21: 145-151.
11. Hall, D.H., and Hajnal, Z. 1969. Crustal structure of northwestern Ontario: refraction seismology. Canadian Journal of Earth Sciences, 6: 82-99.
12. Hamilton, W.B. 1998. Archean tectonics and magmatism. International Geology Review, 40: 1-39.
13. Helmstaedt, H., Harrap, R.M., and White, D. 2001. Seismic imaging of a lower-crustal oceanic slab: Evidence for Neoarchean tectonic accretion in the Western Superior Province, Canada. Geological Society of America, Annual Meeting, Boston, Mass., 1-10 Nov. 2001, Paper 165-0.
14. Hoffman, P.F. 1989. Precambrian geology and tectonic history of North America. In The geology of North America-an overview. Edited by A.W. Bally and A.R. Palmer. Geological Society of America, Boulder, Colo., Vol. A, pp. 447-512.
15. Kay, I., and Musacchio, G. 1998. Wide angle reflection stacks from the Western Superior seismic refraction survey. In Western Superior Lithoprobe Transect 4th Annual Workshop, Toronto, Ont., Canada, 23-24 March 1998. Edited by R.M. Harrap and H.H. Helmstaedt. Lithoprobe Report 65, p. 77.
16. Langford, G.F., and Morin, J.A. 1976. The development of the Superior Province of northwestern Ontario by merging island arcs. American Journal of Science, 276: 1023-1034.
17. Melnyk, M., Cruden, A.R., and Davis, D.W. 2000. Structural geometry and deformational chronology of the Kenora gneisses. In Western Superior Transect 6th Annual Workshop, 3-4 February 2000. Edited by R.M. Harrap and H.H. Helmstaedt. Lithoprobe Report 77, pp. 82-89.
18. Mickus, K.L., Aiken, C.L.V., and Kennedy, W.D. 1991. Regional-residual gravity anomaly separation using the minimum-curvature technique. Geophysics, 56: 279-283.
19. Nitescu, B., and Cruden, A.R. 2001. Gravity models of the English River Subprovince: implications for its deep structure and tectonic origin. In Western Superior Transect 7th Annual Workshop Ottawa, Ont., Canada, 5-6 March 2001. Edited by R.M. Harrap and H.H. Helmstaedt. Lithoprobe Report 80, pp. 136-141.
20. Parker, R.L. 1972. The rapid calculation of potential anomalies. Geophysical Journal of the Royal Astronomical Society, 31: 447-455.
21. Petford, N., Cruden, A.R., McCaffrey, K.J.W., and Vigneresse, J.-L. 2000. Granite magma formation, transport and emplacement in the Earth's crust. Nature (London), 408: 669-673.
22. Pilkington, M., and Crossley, D.J. 1986. Determination of crustal interface topography from potential fields. Geophysics, 51: 1277-1284.
23. Rudnick, R.I., and Fountain, D.M. 1995. Nature and composition of the continental crust: a lower crustal perspective. Reviews of Geophysics, 33: 267-309.
24. Stott, G.M. 1997. The superior province, Canada. In Greenstone belts. Edited by M.J. de Wit and L.D. Ashwal. Clarendon Press, Oxford, U.K., pp. 480-507.
25. Stott, G.M., and Corfu, F. 1991. Uchi Subprovince. In Geology of Ontario. Edited by P.C. Thurston, H.R. Williams, R.H. Sutcliffe, and G.M. Stott. Ontario Geological Survey, Special Vol. 4, Part 1, pp. 145-236.
26. West, G.F. 1980. Formation of continental crust. In The continental crust and its mineral deposits. Edited by D.W. Strangway. Geological Association of Canada, Special Paper 20, pp. 117-148.
27. West, G.F., and Mareschal, J.-C. 1979. A model for Archean tectonism, Part I: the thermal conditions. Canadian Journal of Earth Sciences, 16: 1942-1950.
28. White, D., Asudeh, I., Kay, I., Forsyth, D., and Roberts, B. 1997. Preliminary results of the 1996 Lithoprobe Western Superior seismic refraction survey. In Western Superior Transect 3rd Annual Workshop, 11-12 April 1997. Edited by R.M. Harrap and H.H. Helmstaedt. Lithoprobe Report 63, p. 106.
29. White, D., Calvert, A., Helmstaedt, H., Harrap, R., Thurston, P., and van der Velden, A. 2001a. Lithoprobe Western Superior Transect Phase II seismic reflection profiles. In Western Superior Transect 7th Annual Workshop, Ottawa, Ont., Canada, 5-6 March 2001. Edited by R.M. Harrap and H.H. Helmstaedt. Lithoprobe Report 80, p. 164.
30. White, D., Musacchio, G., Helmstaedt, H.H., Harrap, R., Thomson, C., Sol, S., and Thurston, P. 2001b. Remnants of Archean subduction in the Western Superior Province: Results from combined Lithoprobe deep seismic studies. In Western Superior Transect 7th Annual Workshop, Ottawa, Ont., Canada, 5-6 March 2001. Edited by R.M. Harrap and H.H. Helmstaedt. Lithoprobe Report 80, pp. 163-164.
31. Williams, H.R. 1990. Subprovince accretion tectonics in the south-central Superior Province. Canadian Journal of Earth Sciences, 27, p.570-581.
32. Williams, H.R., Stott, G.M., Thurston, P.C., Sutcliffe, R.H., Bennett, G., Easton, R.M., and Armstrong, D.K. 1992. Tectonic evolution of Ontario: Summary and synthesis. In Geology of Ontario. Edited by P.C. Thurston, H.R. Williams, R.H. Sutcliffe and G.M. Stott. Ontario Geological Survey, Special Vol. 4, Part 2, pp. 1255-1332.