Bringelly Shale
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Bringelly Shale is a component of the Wianamatta group of sedimentary rocks in the Sydney Basin of eastern Australia. Formed in the Middle Triassic Period, it has an extensive outcrop in the western p
Exposed Bringelly Shale at Greystanes, Australia
Exposed sediments on Prospect Highway, Pemulwuy
Rock fragments include ferruginised mudstone and siltstone, iron-stained sandstone lenses, silicified shale, and ironstone concretions formed through groundwater alteration and surface weathering.
Typical iron-cemented sandstone in Smithfield
Wianamatta Group
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The Wianamatta Group is a geological feature of the Sydney Basin, New South Wales, Australia that directly overlies the older Hawkesbury sandstone. The formation is primarily composed of shales with i
Exposed rock at the Prospect dolerite intrusion site, comprising strata of the Wianamatta Group
Exposed Wianamatta Formation at Prospect Highway, Pemulwuy
Exposed Ashfield Shale of the Wianamatta group, by the Pacific Highway, Chatswood