ocean-continent collision at the hikurangi trough, new zealand john louie geol 333 spring 2001

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Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

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Page 1: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

Ocean-Continent Collisionat the Hikurangi Trough,

New Zealand

Ocean-Continent Collisionat the Hikurangi Trough,

New Zealand

John Louie

Geol 333

Spring 2001

Page 2: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

Purpose

• Provide a Focused Example of Oceanic-Plate Influence on Structure and Earthquakes

• Topographic and bathymetric images derived from Eartha Global Explorer, Copyright 1998 by DeLorme Inc., Yarmouth, Maine. www.delorme.com

• New Zealand example from work by Louie, Henrys, and Bannister of UNR and the Crown Institute for Geological and Nuclear Sciences, New Zealand. www.seismo.unr.edu/ftp/pub/louie/weber/

Page 3: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

Topics

• Chatham Rise and Hikurangi Plateaus

• East Cape – Raukumara Peninsula

• Hikurangi Trough Shallow Subduction

• Duplex Thrusting Structure

• Subduction Interface Properties

Page 4: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Tonga-Kermadec Subduction

Page 5: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Australia–Pacific Plate Boundary

Page 6: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Pacific–Antarctic Plate Boundary

Page 7: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Puysegur Subduction - Eastward

Page 8: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Chatham Rise Oceanic Plateau

Page 9: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Hikurangi Oceanic Plateau

Page 10: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Raukumara Peninsula

Page 11: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Raukumara Peninsula

Page 12: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Raukumara Peninsula

Page 13: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Raukumara Peninsula

Page 14: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi

Trough

• Weber Subduction Interface

Page 15: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Hikurangi Trough

Page 16: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Hikurangi Trough

Page 17: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Hikurangi Trough

Page 18: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Hikurangi Trough

Page 19: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Hikurangi Subduction Wedge

Page 20: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Hikurangi Subduction Wedge

Page 21: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi

Trough

• Weber Subduction Interface

Page 22: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Weber Subduction Interface

Page 23: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Weber Subduction Interface

Page 24: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Weber Subduction Interface

Page 25: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Weber Subduction Interface

Page 26: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi

Trough

• Weber Subduction Interface

Page 27: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Weber Subduction Interface

Page 28: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Weber Subduction Interface

Page 29: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Fluid-Reservoir Reflectivity

Page 30: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi Trough• Fluid-Reservoir Reflectivity

Page 31: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the Hikurangi

Trough

• Weber Subduction Interface

Page 32: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the

Hikurangi Trough

• Weber Subduction Interface

QuickTime™ and a decompressor

are needed to see this picture.

Page 33: Ocean-Continent Collision at the Hikurangi Trough, New Zealand John Louie Geol 333 Spring 2001

New Zealand and the

Hikurangi Trough

• Weber Subduction Interface

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