Lithospheric structure along the Queen Charlotte margin in western Canada: constraints from flexural modeling |
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| Authors: | J Prims K P Furlong K M M Rohr R Govers |
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| Institution: | (1) Department of Geosciences, Penn State University, University Park, PA 16802, USA, US;(2) Pacific Geoscience Ctr., P.O. Box 6000, Sidney, British Columbia V8L 4B2, Canada, CA;(3) Institute for Earth Sciences, Utrecht University, Utrecht 3584-CD The Netherlands, NL |
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| Abstract: | The Queen Charlotte fault zone along the western margin of Canada, a right-lateral transform, is part of the boundary between
the Pacific and North America plates. Combining reflection and refraction surveys and flexural modeling, we place limits on
the amount of underthrusting of the Pacific plate beneath the North America plate. Results from our two-dimensional elastic
modeling suggest 10–15 km of underthrusting along the northern Queen Charlotte Islands, in agreement with the amount of underthrusting
inferred from plate motion models.
Received: 12 June 1995/Revision received: 9 December 1995 |
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