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Newport Formation
Stratigraphic range: Mid-Triassic PreꞒ Ꞓ O S D C P T J K Pg N ↓
Wind-weathered sandstone near St Michaels Cave, Avalon Beach, Australia
Type	Geological formation
Unit of	Narrabeen Group
Thickness	up to 49 metres (160 ft)
Location
Location	Sydney Basin
Country	Australia

The Newport Formation is a geologic formation outcropping in the Sydney Basin in eastern Australia. This stratum is up to 49 metres thick. Formed in the mid-Triassic, it is part of the Narrabeen Group of sedimentary rocks.

See also

• Sydney Basin
• Bald Hill Claystone
• Garie Formation
• Narrabeen group

References

1. "Newport Formation (NSW)". Geoscience Australia. Australian Government. Retrieved 17 May 2016.
2. Gregory Retallack. "Triassic Paleosols in the Upper Narrabeen Group of New South Wales. Part II: Classification and Reconstruction" (PDF). Blogs.uoregon.edu. Retrieved 1 February 2016.

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