scholarly journals A re-interpretation of the seismic structure across the active subduction zone of western Canada

1990 ◽  
Author(s):  
J J Drew ◽  
R M Clowes
Keyword(s):  
Subduction Zone ◽  
Western Canada ◽  
Seismic Structure

scholarly journals Seismic structure across the active subduction zone of western Canada

1985 ◽  
Vol 90 (B8) ◽  
pp. 6754 ◽  
Author(s):  
G. D. Spence ◽  
R. M. Clowes ◽  
R. M. Ellis
Keyword(s):  
Subduction Zone ◽  
Western Canada ◽  
Seismic Structure

The structure and tectonic history of the western Canada subduction zone

1990 ◽  
Vol 173 (1-4) ◽  
pp. 641 ◽  
Author(s):  
Ron M. Clowes ◽  
R.D. Hyndman ◽  
C.J. Yorath ◽  
E.E. Davis
Keyword(s):  
Subduction Zone ◽  
Western Canada ◽  
Tectonic History ◽  
History Of

scholarly journals Seismic structure of the northern end of the Ryukyu Trench subduction zone, southeast of Kyushu, Japan

2009 ◽  
Vol 61 (8) ◽  
pp. e37-e40 ◽  
Author(s):  
Azusa Nishizawa ◽  
Kentaro Kaneda ◽  
Mitsuhiro Oikawa
Keyword(s):  
Subduction Zone ◽  
Seismic Structure ◽  
Ryukyu Trench

scholarly journals Deep seismic structure of the Tonga subduction zone: Implications for mantle hydration, tectonic erosion, and arc magmatism

2011 ◽  
Vol 116 (B10) ◽  
Author(s):  
Eduardo Contreras-Reyes ◽  
Ingo Grevemeyer ◽  
Anthony B. Watts ◽  
Ernst R. Flueh ◽  
Christine Peirce ◽  
...  
Keyword(s):  
Subduction Zone ◽  
Arc Magmatism ◽  
Seismic Structure ◽  
Tonga Subduction Zone ◽  
Tectonic Erosion

Geophysical review of the continental margins of eastern and western Canada

1979 ◽  
Vol 16 (3) ◽  
pp. 712-747 ◽  
Author(s):  
C. E. Keen ◽  
R. D. Hyndman
Keyword(s):  
Subduction Zones ◽  
Magnetic Data ◽  
Continental Margins ◽  
Plate Boundaries ◽  
Western Canada ◽  
Seismic Structure ◽  
Transform Faults ◽  
Crust And Upper Mantle ◽  
Plate Motions ◽  
Plate Convergence

The evolution and geophysical features of the continental margins of eastern and western Canada are reviewed in light of recent plate-tectonic concepts. The two margins are very different in age, structure, and origin. The eastern margins were formed either by rifting or by transform motion during the latest separation of the continents around the Atlantic that occurred from Jurassic to Tertiary times. Studies of these margins centre around a reconstruction of plate motions, the inception of which occurred over 70 Ma ago, and on subsequent processes such as subsidence and sedimentation. The subsidence of the margin is explicable in terms of cooling of the lithosphere and sediment loading. Deep crustal features are inferred from seismic, gravity, and magnetic data. The recognition of the ocean–continent boundary at these margins involves consideration of edge effects, magnetic quiet zones and rifting mechanisms. The western Canadian margins are present active plate boundaries. Recent geophysical studies of these margins centre around the detailed definition of the present plate boundaries and relative plate motions, and those of the recent past (about the past 10 Ma), and involve spreading ridges, transform faults, and subduction zones. The plate convergence predicted by offshore geophysical data has a pronounced effect on the continental crust and upper mantle extending several hundred kilometres inland from the coast. In southwestern Canada patterns characteristic of subduction zones are seen in seismic structure, the gravitational and magnetic fields, heat flow, and deep electrical structure.

Seismic structure and magmatism of the Young Kyushu Subduction Zone

2000 ◽  
Vol 27 (14) ◽  
pp. 2057-2060 ◽  
Author(s):  
Dapeng Zhao ◽  
Koichi Asamori ◽  
Hikaru Iwamori
Keyword(s):  
Subduction Zone ◽  
Seismic Structure
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