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                                                               Gray & Foster, 2000
                                                                                                                                            Subduction / accretion

                                                                                                                                            models for Late Ordovician Victoria –



                                                                                                                                            ….they don’t work perfectly.






                                                                                                                                      Wagga Omeo zone
                                                                                                                                      looks like a Ordovician back arc,
                                                                                                                                      not an arc
 Stawell does look like an accretionary wedge,
 but its Cambrian, not part of the Lachlan story

  Miller et al., 2003



                                                      Accretion does not fit well
                                                                                                        Accretion fits well













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