The Eocene Southern Vancouver Island Orocline-a response to seamount accretion and the cause of fold-and-thrust belt and extensional basin formation

Tectonophysics

Volumn 365, Issue 1-4, 2003, Pages 165-183

  Johnston, Stephen T ^a   Acton, Shannon ^a  

^a UNIVERSITY OF VICTORIA   (Canada)

Author keywords

Eocene Southern Vancouver Island Orocline; Extensional basin formation; Fold and thrust belt; Seamount accretion

Indexed keywords

ACCRETION; BLOCK ROTATION; EOCENE; EXTENSIONAL TECTONICS; FOLD AND THRUST BELT; OROGENIC BELT; SEAMOUNT;

BRITISH COLUMBIA; CANADA; VANCOUVER ISLAND;

EID: 0037630021     PISSN: 00401951     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-1951(03)00021-0     Document Type: Article

References (35)

1. Babcock, R. S., Burmester, R. F., Engebretson, D. C., Warnock, A., Clark, K. P. (1992). A rifted margin origin for the crescent basalts and related rocks in the northern coast range volcanic province, Washington and British Columbia. Journal of Geophysical Research, 97 6799-6821.
2. Beck, M. E., Engebretson, D. C. (1982). Paleomagnetism of small basalt exposures in the West Puget Sound Area, Washington, and speculations on the accretionary origin of the Olympic Mountains. Journal of Geophysical Research, 87 3755-3760.
3. Boyer, S. E., Elliott, D. (1982). Thrust systems. The American Association of Petroleum Geologists Bulletin, 66(9), 1196-1230.
4. Brandon, M. T. (1989). Deformational styles in a sequence of olistostromal melanges, Pacific Rim Complex, western Vancouver Island, Canada. Geological Society of America Bulletin, 101 1520-1542.
5. Brandon, M.T., Roden-Tice, M.K., Garver, J.I., 1998. Late Cenozoic exhumation of the Cascadia accretionary wedge in the Olympic Mountains, Northwest Washington State. Geological Society of America Bulletin. 110 (8), 985-1009.
6. Calvert, A. J. (1996). Seismic reflection constraints on imbrication and underplating of the northern Cascadia convergent margin. Canadian Journal of Earth Sciences, 33 1294-1307.
7. Carey, S. W. (1955). The Orocline concept in Geotectonics-Part 1. Proceedings of the Royal Society of Tasmania, 89 255-288.
8. Cathyl-Bickford, C. G., Hoffman, G. (1998). Geological Maps of the Nanaimo and Comox Coal Fields. Victoria: British Columbia Ministry of Energy, Mines and Petroleum Resources.
9. Clowes, R. M. (1987). Lithoprobe- Southern Vancouver Island: cenozoic subduction complex imaged by deep seismic reflections. Canadian Journal of Earth Sciences, 24 31-51.
10. Currie, L. D., Grist, A. M. (1996). Diachronous low-temperature Paleogene cooling of the Alberni Inlet area, southern Vancouver Island, British Columbia: evidence from apatite fission track analyses. Geological Survey of Canada Current Research, 119-128. Vancouver: Natural Resources Canada.
11. DeBari, S. M., Anderson, R. G., Mortensen, J. K. (1999). Correlation among lower to upper crustal components in an island arc: the Jurassic Bonanza arc, Vancouver Island, Canada. Canadian Journal of Earth Sciences, 36 1371-1413.
12. Duncan, R. A. (1982). A captured island chain in the Coast Range of Oregon and Washington. Journal of Geophysical Research, 87 10827-10837.
13. Eldredge, S., Bachtadse, V., Van der Voo, R. (1985). Paleomagnetism and the orocline hypothesis. Tectonophysics, 119 153-179.
14. Engebretson, D. C., Cox, A., Gordon, R. G. (1985). Relative motions between oceanic and continental plates in the Pacific Basin. Special Paper 206, Denver, CO: Geological Society of America.
15. England, T. D., Calon, T. J. (1991). The Cowichan fold and thrust system, Vancouver Island, southwestern British Columbia. Geological Society of America Bulletin, 103 336-362.
16. England, T. D., Currie, L. D., Massey, N. W., Roden-Tice, M. K., Miller, D. S. (1997). Apatite fission-track dating of the Cowichan fold and thrust system, southern Vancouver Island, British Columbia. Canadian Journal Earth Science, 34 635-645.
17. Enkin, R. J., Baker, J., Mustard, P. S. (2001). Paleomagnetism of the Late Cretaceous Nanaimo Group, Southwestern Canadian Cordillera. Canadian Journal of Earth Sciences, 38 1403-1422.
18. Groome, W.G., et al., in press. Magmatic and tectonic history of the Leech River Complex, Vancouver Island, British Columbia: Evidence for ridge-trench intersection and accretion of the Crescent Terrane, Special Paper. Geological Society of America, Denver, Colorado.
19. Hyndman, R. D. (1995). The Lithoprobe corridor across the Vancouver Island continental margin: the structural and tectonic consequences of subduction. Canadian Journal of Earth Sciences, 32 1777-1802.
20. Johnson, S. Y., Zimmermann, R. A., Naeser, C. W., Whetten, J. T. (1986). Fission-track dating of the tectonic development of the San Juan Islands, Washington. Canadian Journal of Earth Sciences, 23 1318-1330.
21. Johnston, S. T. (2001). The Great Alaskan Terrane Wreck: reconciliation of paleomagnetic and geological data in the northern Cordillera. Earth and Planetary Science Letters, 193 259-272.
22. Johnston, S. T., Thorkelson, D. J. (2000). Continental flood basalts: episodic magmatism above long-lived hotspots. Earth and Planetary Science Letters, 175 247-256.
23. Johnston, S. T. (1996). Yellowstone in Yukon: the late Cretaceous Carmacks group. Geology, 24 997-1000.
24. Journeay, J. M., Morrison, J. (1999). 1999 Field investigation of Cenozoic structures in the northern Cascadia forearc, southwestern British Columbia. Geological Survey of Canada Current Research, 239-250. Vancouver: Natural Resources Canada.
25. Marshak, S. (1988). Kinematics of orocline and arc formation in thin-skinned orogens. Tectonics, 7(1), 73-86.
26. Massey, N. W. (1986). Metchosin Igneous Complex, southern Vancouver Island: ophiolite stratigraphy developed in an emergent island setting. Geology, 14 602-605.
27. Massey, N. W. (1995). Geology of the Alberni-Nanaimo Lakes Area (92 F/1W, 92 F/2E), Paper 1992-2. Victoria, BC: British Columbia Ministry of Energy, Mines and Petroleum Resources.
28. Massey, N. W., Friday, S. J. (1988). Geology of the Chemainus River-Duncan area, Vancouver Island (92C/16; 92B/13). Geological Fieldwork 1987, 81-91. Mines and Petroleum Resources, Victoria: British Columbia Ministry of Energy.
29. Mihalynuk, M. G., Nelson, J., Diakow, L. J. (1994). Cache Creek terrane entrapment: oroclinal paradox within the Canadian Cordillera. Tectonics, 13(2), 575-595.
30. Muller, J. E. (1977). Evolution of the Pacific Margin, Vancouver Island, and adjacent regions. Canadian Journal of Earth Sciences, 14 2062-2085.
31. Muller, J. E., Jeletzky, J. A. (1970). Geology of the Upper Cretaceous Nanaimo Group, Vancouver Island and Gulf Islands, British Columbia. Geological Survey of Canada Paper 69-25, Ottawa, Ontario: Natural Resources Canada.
32. Weil, A. B., Van der Voo, R., van der Pluijm, B. A. (2001). Oroclinal bending and evidence against the Pangea megashear: the Cantabria-Asturias arc (northern Spain). Geology, 29 991-994.
33. Yorath, C. J. (1991). Upper Jurassic to Paleogene assemblages, Chap. 9. In H. Gabrielse, C. J. Yorath (Eds.), The Geology of North America, 331-371. Denver: Geological Society of America.
34. Yorath, C. J. (1987). Marine Multichannel Seismic Reflection, Gravity and Magnetic Profiles-Vancouver Island Continental Margin and Juan de Fuca Ridge 1661. Vancouver, BC: Geological Survey of Canada.
35. Yorath, C. J., Sutherland Brown, A., Massey, N. W. (1999). Lithoprobe, southern Vancouver Island, British Columbia: geology. Geological Survey of Canada Bulletin 498, Ottawa, Ontario: Natural Resources Canada.