| Nobbys Tuff | |
|---|---|
| Stratigraphic range: Wuchiapingian | |
 | |
| Type | Geological formation |
| Thickness | up to 25 metres (80 ft) |
| Location | |
| Region | Lachlan Orogen |
| Country |  Australia |
| Type section | |
| Named for | Nobbys Head |
Nobbys Tuff is a geologic formation in eastern Australia. Found in Newcastle within the Lachlan Orogen, this stratum is up to 25 metres thick. Formed from volcanic ash in an eruption in the Wuchiapingian age, in the late Permian around 255.02 Ma. This formation includes tuff, tuffaceous sandstone, tuffaceous siltstone, claystone, and chert. Often noticed at Nobbys Head in Newcastle.[1][2]
- ^ "Geology of the Newcastle coastline, New South Wales" (PDF). Resources and Geo Science Australia. New South Wales Government. Retrieved 20 January 2020.
- ^ "Nobbys Tuff". Geo Science Australia - Australian Stratigraphic Units Database. Australian Government. Retrieved 13 November 2020.