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| | Perth basin - Wikipedia, the free encyclopedia |
 | | The primary mechanism for sedimentation was originally subsidence creating accommodation, followed by fault extension and, more recently, sediment loading. |
 | | The principal detachment and eastern boundary of the Perth Basin is the Darling Scarp, which essentially prepresents the extent of the Darling Fault |
 | | The Quaternary, Cainozoic and Recent sedimentation of the Perth Basin is represented by thin, impermanent sand dune systems, biogenic limestones, sandstones and some shales deposited during the last ~20 million years and during ice ages. |
| en.wikipedia.org /wiki/Perth_basin (790 words) |
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