Publication Name: The Canning Basin, W.A.
Authors: P.G. Purcell and J. Poll
Date Published: December 1984
Number of Pages: 27
Reference Type: Book Section
Abstract:
Selected seismic sections show some of the main tectonic elements and provinces of the Canning Basin, clearly revealing the structural complexity and diversity in the basin. In the north, the deep Fitzroy /Gregory graben is bounded by major listric faults and flanked by tilted shelves and terraces. Local structures caused by salt movement and wrench faulting occur on the southern terraces, adjacent to the broad mid-basin ridge, the Broome Arch. Complex compressional structures occur in the graben, and bounding faults often show Mesozoic reverse movement. By contrast the southern basins are shallower and relatively undeformed, with normal faults controlling section thickness in some areas.The sections have been provided by current operators or chosen from open file material. The interpretations are best working estimates, guided by the donor companies but ultimately the responsibility of the authors.