Mount York Claystone

Mount York Claystone is a narrow band of sedimentary rocks occurring in the Sydney Basin in eastern Australia.

Mount York Claystone consists of red brown claystones, of fine‐grained and coarsely oolitic, kaolinite clayrocks.

The line of strata appears as a vegetated horizontal strip.

[1] Formed in the Triassic, it is part of the Narrabeen Group of sedimentary rocks and has similarities to the Garie Formation.

This article about a specific Australian geological feature is a stub.