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Date Posted: 09:30:08 08/16/99 Mon
Author: chenyee
Subject: Re: (XSS229/3A)/Plate Tectonics (Convergent Plates)
In reply to: Charles Chan 's message, "Re: (XSS229/3A)/Plate Tectonics (Convergent Plates)" on 00:13:13 08/07/99 Sat

Yes, one oceanic crusts does indeed subduct the other crusts depending on which one is more dense. The assumption being that even a slight deifference in the mineral composition of the two different crusts layers will cause subtle changes in density. Good example of landforms associated with two converging oceanic plates would be Japan and her many volcanic cones and the Japan sea trench.

I have not seen any book that distinguishes between the terms crusts and plates when it comes to Plates Tec. Theory. The two terms are able to be used to mean the same together with lithosphere? I am not too sure about this one.

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