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Subduction Tectonics/Active Margin Evolution

Subduction Tectonics/Active Margin Evolution. Peter Clift. Philippine Sea Plate, Subduction Initiation. Casey and Dewey (1984). Subduction Initiation. Bloomer et al. (1995). Initiation at a fracture zone. Casey and Dewey (1984). Collapse at the ridge crest?.

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Subduction Tectonics/Active Margin Evolution

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  1. Subduction Tectonics/Active Margin Evolution Peter Clift

  2. Philippine Sea Plate, Subduction Initiation Casey and Dewey (1984)

  3. Subduction Initiation Bloomer et al. (1995)

  4. Initiation at a fracture zone Casey and Dewey (1984)

  5. Collapse at the ridge crest?

  6. Forces that resist subduction initiation McKenzie, 1977

  7. Flow of asthenosphere into a crack? Turcotte et al. (1977)

  8. Boninites Pearce and Parkinson (1993)

  9. Metamorphic soles Jones et al. (1991) Pindos Mountains, Greece

  10. Anatomy of an intra-oceanic arc

  11. Subduction seismicity

  12. Subduction polarity flip

  13. Aegean Seismicity- backarc extension

  14. Angle of descent, controling factors? Isacks and Molnar (1971)

  15. Stresses in the descending slab. Isacks and Molnar (1969)

  16. Backarc rifting-Izu-Bonin Arc

  17. Backarc rifting-Tonga: location of rift axis?

  18. Magmatic variations during backarc rifting

  19. En-echelon spreading axes, Havre Trough

  20. Rift-drift transition in backarcs

  21. Propagating rifts in backarc basins

  22. Hydrothermalism in backarc basins

  23. Different basement types and styles of hydrothermalism

  24. Effect of seamount collision on arc magmatism. Magmatic gap?

  25. Subduction erosion in Tonga

  26. Tonga Forearc Subsidence

  27. Perched basins on an erosive plate margin

  28. Tonga fore-arc trench slope basin

  29. Paired metamorphic belts

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