Abstract

Intraplate tectonic escape along the eastern margin of Gondwanaland in Late Silurian to Middle Devonian time was caused by the eastward movement of Antarctica along a major intraplate tear. Resulting collisions caused a crustal block from the southern part of the Lachlan orogen of southeastern Australia to become detached from its lower lithosphere and escape to the northwest as a crustal flake. This escaping block then became incorporated into the western part of the Lachlan orogen as a separate terrane.

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