Ref: Can. J. Earth Sci. 43: 1835–1857 (2006).

To correct for a typographical error of a value in the text of paragraph five on page 1850, the revised paragraph is provided as follows.

On the one hand, modern plate tectonics involves geographically long, structurally complex and sophisticated, circum-oceanic island-arc systems, operating in relation to large stable continents. Current subduction zones extend to depths of ca. 700 km (Hamilton 2003, Fig. 7); this provides the measure of existing, cool, brittle lithosphere. Archean tectonic processes, on the other hand, operated in an evolving thermal regime in which the average upper mantle temperature...

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