Abstract
The correlation of regional aeromagnetic, gravity, and seismic data with geological structures within and along the margins of the Central Metasedimentary Belt (CMB) is used to trace features beneath the sedimentary cover to the south of this major tectonic subdivision. The comparison of geophysics and geology is used to study: (1) the exposed northeast and the covered southwest extensions of the CMB Boundary Zone between the CMB and the Central Gneiss Belt (CGB), (2) the continuation of the Carthage-Colton-Labelle (Mylonite) Zone along the eastern CMB, (3) the enigmatic and seismogenic Clarendon-Linden structure in central Lake Ontario, and its possible continuity as the boundary between the Elzevir, and Frontenac and New York Lowlands terranes and (4) sub-domain boundaries and major internal features.
The northern end of a new subdivision of the southwestern Grenville Province, and a prominent zone of plutonic bodies within the central CMB, are identified from distinct aeromagnetic anomaly patterns.
The relatively continuous CMB magnetic anomaly pattern, due mainly to shallow lithology and structure, is discordant with respect to gravity gradient belts, due probably to deeper density structure. This discordant relationship, taken together with interpreted Grenville Supergroup thicknesses of 4–5 km (gravity models) and geological and seismic evidence for northwest thrusting in the Grenville basement, may indicate that much of the metasedimentary assemblage is allochthonous.
The regional change in mapped structural attitudes, from shallow dipping in the west to near vertical in the east, is in accord with the more direct correlation of potential field anomalies with the geology in the east. Shallower structural attitudes in the western CMB, and displacement of the anomaly-causing density structure at depth, may explain the divergence of the Western Boundary Gradient Belt from the boundary zone outside of the Bancroft to Ottawa River section.
The relationship between the CMB and the positive regional gravity field is evident. Greater Moho depth beneath the western CMB-CGB, identified by refraction studies, may indicate that the gravity high reflects a denser lower crust-upper mantle produced by continental collision.
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References
Avramtchev, L. and S. Lebel-Drolet, 1981, ‘Carte des gites mineraux du Quebec, region de l’Abitibi.’ Ministère de l’Energie et des Ressources du Quebec. DPV-744, 89 p.
Baer, A.J., 1976, The Grenville Province in Helikian times: a possible model of evolution.’ Royal Society of London, Philosophical Transactions, A280, p. 499–515.
Baer, A.J., W.H. Poole and B.V. Sanford, 1977, ‘Rivière Gatineau.’ Geological Survey of Canada, map 1334A.
Bartlett, J.R., B.S. Brock, J.M. Moore, Jr. and R.H. Thivierge, 1984, ‘Grenville Traverse A, Cross-sections of parts of the Central Metasedimentary Belt.’ Geological Association of Canada, Field Trip Guidebook, 9A/10A, 63 p.
Beardsley, R.W. and M.S. Cable, 1983, ‘Overview of the evolution of the Appalachian Basin.’ Northeastern Geology, v. 5, p. 137–145.
Bell, K. and J. Blenkinsop, 1980, ‘Whole-rock Rb-Sr studies in the Grenville Province of southeastern Ontario and western Quebec — a summary report.’ In: Current Research, Part C, Geological Survey of Canada Paper, no. 80–1C, p. 152–154.
Brown, R.L., J.F. Chappell, J.M. Moore Jr. and P.H. Thompson, 1975, ‘An ensimatic island arc and ocean closure in the Grenville Province of southeastern Ontario, Canada.’ Geoscience Canada, v. 2, p. 141–144.
Carmichael, D.M., H.H. Helmstaedt and I.W. Isachsen, 1987, ‘A Geological field trip in the Adirondack Lowlands of New York State and across the Grenville Province of Ontario via the Ottawa-Bonnechere Graben.’ Fieldtrip Guidebook for the 7th International Conference on Basement Tectonics, Kingston, Ontario, Canada, August 27, 1987, 53 p.
Committee for the Magnetic Anomaly Map of North America, 1987, ‘Magnetic anomaly map of North America, Boulder Colorado.’ Geological Society of America, 4 Sheets, 1:5,000,000.
Condie, K.C. and J.M. Moore Jr., 1977, ‘Geochemistry of Proterozoic rocks from the Grenville Province, eastern Ontario.’ In: Volcanic Regimes in Canada. W.R.A. Baragar, L.C. Coleman and J.M. Hall (eds.). Geological Association of Canada Special Paper, no. 16, p. 149–168.
Connelly, J.N., 1985, ‘The Elzevir batholith: emplacement history with respect to the Grenville Supergroup and Flinton Group, southeastern Ontario.’ In Current Research, Part B, Geological Survey of Canada Paper, no. 85–1B, p. 161–167.
Corriveau, L., 1985, ‘Precambrian syenitic plutons, Central Metasedimentary Belt, Grenville Province of Quebec’ In: Current Research, Part A, Geological Survey of Canada Paper, no. 85–1A, p. 165–174.
Culshaw, N.G., A. Davidson and L. Nadeau, 1983, ‘Structural subdivisions of the Grenville Province in the Parry Sound-Algonquin region, Ontario.’ In: Current Research, Part B, Geological Survey of Canada Paper, no. 83–1B, p. 243–252.
Davidson, A., 1986, ‘New interpretations in the southwestern Grenville Province.’ In: The Grenville Province, J.M. Moore, A. Davidson and A.J. Baer (eds.), Geological Association of Canada Special Paper, no. 31, p. 61–74.
Davidson, A., 1984, ‘Tectonic Boundaries within the Grenville Province of the Canadian Shield.’ Journal of Geodynamics, v. I, p. 433–444.
Davidson, A., N.G. Culshaw and L. Nadeau, 1982, ‘A tectono-metamorphic framework for part of the Grenville Province, Parry Sound region, Ontario.’ In: Current Research, Part A: Geological Survey of Canada Paper, no. 82–1A, p. 175–190.
Davidson, A., 1984, ‘Grenville Transverse B, Cross-section of Part of the Central Gneiss Belt’ Geological Association of Canada, Field Trip Guidebook, 9B/10B, 79 p.
Davidson, A., J.M. Britton, K. Bell and J. Blenkinsop, 1979, ‘Regional synthesis of the Grenville Province of Ontario and Western Quebec’ In: Current Research, Part B, Geological Survey of Canada Paper, no. 79–1B, p. 153–172.
Dimroth, E., 1966, ‘Deformation in the Grenville Province between Gatineau and Petite Nation rivers, Quebec’ Neues Jahrbuch far Mineralogie, v. 105, p. 93–109.
Easton, R.M., 1986, ‘Geochronology of the Grenville Province.’ In: The Grenville Province, J.M. Moore, A. Davidson and A.J. Baer (eds.), Geological Association of Canada Special Paper, no. 31, p. 127–173.
Forsyth, D.A., 1981, ‘Characteristics of the western Quebec Seismic Zone.’ Canadian Journal of Earth Sciences, v. 18, p. 103–119.
Geraghty, E.P., Y.W. Isachsen and S.F. Wright, 1981, ‘Extent and Character of the Carthage-Colton Mylonite Zone, Northwest Adirondacks, New York.’ U.S. Nuclear Regulatory Commission, Washington, Contract Report, NUREG/CR-1865, 83 p.
Hanmer, S., R.H. Thivierge and J.R. Henderson, 1985, ‘Anatomy of a ductile thrust zone: part of the northwest boundary of the Central Metasedimentary Belt, Grenville Province, Ontario (preliminary report).’ In: Current Research, Part B, Geological Survey of Canada Paper, no. 85–1B, p. 1–5.
Hanmer, S. and A. Ciesielski, 1984, ‘A structural reconnaissance of the northwest boundary of the Central Metasedimentary Belt, Grenville Province, Ontario and Quebec.’ In: Current Research, Part B: Geological Survey of Canada Paper, no. 84–1B, p. 121–131.
Hildenbrand, T.G. and R.P. Kucks, 1984, ‘Residual total intensity magnetic map of Ohio.’ United States Geological Survey Geophysical Investigations Map, no. GP-961, Scale 1:500,000.
Hutchinson, D.R., P.W. Pomeroy, RJ. Wold and H.C. Halls, 1979, ‘A geophysical investigation concerning the continuation of the Clarendon-Linden fault across Lake Ontario.’ Geology, v. 7, p. 206–210.
Kearey, P., 1978, ‘An interpretation of the gravity field of the Morin Anorthosite Complex, southwest Quebec’ Geological Society of America Bulletin, v. 89, p. 467–475.
Lindia, F.M., M.D. Thomas and A. Davidson, 1983, ‘Geological significance of Bouguer Anomalies in the region of Parry Sound domain, Grenville Province, Ontario.’ In: Current Research, Part B, Geological Survey of Canada Paper, no. 83–1B, p. 261–266.
Lucius, J.E. and R.R.B. Von Frese, 1988, ‘Aeromagnetic and gravity anomaly constraints on the crustal geology of Ohio.’ Geological Society of America Bulletin, v. 100, p. 104–116.
Lumbers, S.B., 1967, ‘Stratigraphy, plutonism and metamorph ism in the Ottawa River remnant in the Bancroft-Ma doc area of the Grenville Province of southeastern Ontario, Canada.’ Unpublished Ph D. thesis, Princeton University, Princeton, N.J., 331 p.
Martignole, J., 1986, ‘Some questions about crustal thickening in the central part of the Grenville Province.’ In: The Grenville Province, J.M. Moore, A. Davidson and A.J. Baer (eds.). Geological Association of Canada Special Paper, no. 31, p. 327–339.
McLelland, J.M. and Y.W. Isachsen, 1986, ‘Synthesis of geology of the Adirondack Mountains, New York, and their tectonic setting within the Southwestern Grenville Province.’ In: The Grenville Province, J.M. Moore, A. Davidson and A.J. Baer (eds.), Geological Association of Canada Special Paper, no. 31, p. 75–94.
Mereu, R.F., D. Wang, O. Kuhn and D.A. Forsyth, 1986, ‘Summary of the results of the 1982 COCRUST long-range seismic experiment across the Ottawa-Bonnechere graben and western Grenville Front.’ In: The Grenville Province, J.M. Moore, A. Davidson and A.J. Baer (eds.), Geological Association of Canada Special Paper, no.31, p. 235–240.
Moore, J.M. Jr., 1982, ‘Stratigraphy and tectonics of the Grenvillian Orogen in eastern Ontario.’ Ottawa-Carleton Centre for Geoscience Studies, Grenville Workshop, Program and Abstract, 7.
Moore, J.M. Jr. and P.H. Thompson, 1980, ‘The Flinton Group: a late Precambrian metasedimentary succession in the Grenville Province of eastern Ontario.’ Canadian Journal of Earth Science, v. 17, p. 1685–1707.
Moore, J.M., Jr., A. Davidson and A.J. Baer (eds.), 1986, ‘The Grenville Province’. Geological Association of Canada Special Paper, no. 31, 348p.
Pomeroy, P.W., T.A. Nowak Jr. and RH. Fakundiny, 1978, ‘Clarendon-Linden fault system of western New York: a vibriosis study.’ New York State Museum, Journal Series, no. 244.
Pride, C. and J.M. Moore Jr., 1983, ‘Petrogenesis of the Elzevir Batholith and related trondhjemitic intrusions in the Grenville Province of eastern Ontario, Canada.’ Contributions of Mineralogy and Petrology, v. 82, p. 187–194.
Real, D.L., 1987, ‘Gravity models within the southern Central Metasedimentary Belt and across its northwest boundary, Grenville Province, Ontario.’ Unpublished B.Sc thesis, University of Ottawa, Ottawa, Ontario, Canada.
Real, D.L. and M.D. Thomas, 1987, ‘Gravity models within the southern Central Metasedimentary Belt, Grenville Province, Ontario.’ In: Current Research, Part A, Geological Survey of Canada Paper, no. 87–1A, p. 763–772.
Rondot, J., 1986, ‘Géosutures dans le Grenville.’ In: The Grenville Province, J.M. Moore, A. Davidson and A.J. Baer (eds.), Geological Association of Canada Special Paper, no. 31, p. 313–325.
Sobczak, L.W., 1970, ‘Gravity surveys in the Alexandria area, eastern Ontario.’ Publications of the Dominion Observatory, v. 39, p. 155–173.
U.S. National Magnetic Anomaly Committee, 1982. ‘Composite magnetic anomaly map of the United States, Part A: Conterminous United States.’ United States Geological Survey, Geophysical Investigations Map. GP-954-A.
van Breemen, O. and S. Hanmer, 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.’ In: Current Research, Part B, Geological Survey of Canada Paper, no. 86–1B, p. 775–784.
van Breemen, O., A. Davidson, W.D. Loveridge and R.W. Sullivan, 1986, ‘U-Pb zircon geochronology of Grenville tectonites, granulites and igneous precursors, Parry Sound, Ontario.’ In: The Grenville Province, J.M. Moore, A. Davidson and A.J. Baer, (eds.), Geological Association of Canada Special Paper, no. 31, p. 191–207.
Wahlström, R., 1987, ‘Focal mechanisms of earthquakes in southern Quebec, southeastern Ontario and northeastern New York with implications for regional seismotectonics and stress field characteristics.’ Bulletin, Seismological Society of America, v. 77, p. 891–924.
Weston Geophysical, 1986, ‘Investigations of confirmatory seismological and geological issues, northeastern Ohio earthquake of January 31, 1986.’ United States Nuclear Regulatory Commission, Docket Nos. 50–440, 50–441.
Wynne-Edwards, H.R., 1966, ‘Mont Laurier — Kempt Lake.’ In: Geological Survey of Canada Paper, Map 11–1966, no. 66–32.
Wynne-Edwards, H.R., 1972, ‘The Grenville Province.’ In: Variations in Tectonic Styles in Canada, R.A. Price and RJ.W. Douglas, (eds.), Geological Association of Canada, Special Paper, no. 11, p. 263–334.
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Forsyth, D.A., Thomas, M.D., Abinett, D., Broome, J., Halpenny, J., Real, D. (1992). Geophysical Investigations of the Central Metasedimentary Belt, Grenville Province: Quebec to Northern New York State. In: Mason, R. (eds) Basement Tectonics 7. Proceedings of the International Conferences on Basement Tectonics, vol 1. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0833-3_31
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