Publication Name: Eastern Australian Basins Symposium III (EABS 2008)
Authors: P. Boult, P. Lyon, B. Camac, S. Hunt and H. Zwingmann
Date Published: September 2008
Number of Pages: 14
Abstract:
The Penola Trough is a NW–SE trending half-graben structure bounded to the south by the large Hungerford / Kalangadoo (H/K) fault system. Several major basement cutting faults within the Penola Trough including the St George Fault have exerted significant controls on cover-fault development throughout the structural evolution of the area. These have in turn controlled source rock location, reservoir development, trap formation and preservation of petroleum accumulations.
Syndepositional basement faulting was established during the initial rift event of the Late Jurassic–Early Cretaceous. Faulting first propagated along pre-existing Cambrian weaknesses resulting in the development of the H/K and St George faults. This controlled deposition of the oil-prone Casterton Formation.