Bringelly Shale
| Bringelly Shale | |
|---|---|
Bringelly |
Bringelly Shale is a component of the
Bringelly, near the suburb of Liverpool
.
Lithology
The shale is the topmost layer of
Triassic Period.[1]
It is similar to
laminite, but would lack sideritic mudstone bands that Ashfield Shale has. Bringelly Shale has lumpy clay minerals, and it swells and decays rapidly on submergence in water and is generally less durable.[2]
Description
The average thickness is around 60 metres.alluvial plain with winding streams that formed sporadic beds of sandstone. The shale is dark when unweathered just like the Ashfield Shale. The shale is usually a typical olive-green colour when weathered. Alloyed coal bands and lenses and iron oxide concretions have been observed in the shale. The shale is quarried in many western suburbs of Sydney for brick and miscellaneous ceramic manufacture.[4]
See also
- Hawkesbury sandstone
- Ashfield Shale
- Wianamatta shale
- Narrabeen Group
References
- ^ Wianamatta shale Dictionary of Sydney
- ISBN 1864450029.
- ^ Lovering, J. F. "Bringelly Shale" (PDF). STRATIGRAPHY OF' THE WIANAMATTA GROUP. Australian Museum. Retrieved August 23, 2012.
- ISBN 978-0-7240-1250-3.