Ocean-Continent CollisionsOcean-Continent Collisions

John Louie

Geol 333

Spring 2001

Purpose

Provide Examples of How Mountain-Building Depends on Oceanic-Plate Features

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/

Topics

Oceanic Trenches Oceanic Plateaus Next Topics:

Continental Collision New Zealand and the Hikurangi

Trough

Oceanic Trenches Andes

Oceanic Trenches Chile

Oceanic Trenches Chile

Oceanic Trenches Chile

Oceanic Trenches Chile

Oceanic Trenches Cascadia

Oceanic Trenches Cascadia

Oceanic Trenches Cascadia

Oceanic Trenches Cascadia

Oceanic Trenches Cascadia

Oceanic Trenches Cascadia

Oceanic Trenches Cocos Plate

Oceanic Trenches Central American close-up

Oceanic Trenches Costa Rica

Oceanic Trenches

Costa Rica

Oceanic Trenches Nicaragua Subduction Wedge

Oceanic Trenches Costa Rica Subduction Wedge

Oceanic Trenches Japan - Philippine Sea

Oceanic Trenches Japan - Philippine Sea

Oceanic Trenches Japan - Philippine Sea

Oceanic Trenches

Underplating

Oceanic Trenches Japan - Philippine Sea

Oceanic Trenches Japan - Philippine Sea

New Zealand and the Hikurangi Trough Australia–Pacific Plate Boundary

Oceanic Plateaus Ontong-Java

Oceanic Plateaus Ninety-East Ridge

Oceanic Plateaus Kerguellen