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Macquarie Syncline
Lochinvar Anticline
Kulnura Anticline
Yarramalong Syncline
Wollombi Syncline
As the subduction zone re-established the compressional force caused a series of folds to be formed in the land.
An up fold is called an Anticline and a down fold a Syncline.
Water flooded into the Macquarie Syncline forming a proto version of Lake Macquarie.
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