Mount York Claystone

Mount York Claystone is a narrow band of sedimentary rocks occurring in the Sydney Basin in eastern Australia. This stratum is up to 13 metres thick. Mount York Claystone consists of red brown claystones, of fine‐grained and coarsely oolitic, kaolinite clayrocks.

Often seen situated above the Burra-Moko Head Sandstone and below the Banks Wall Sandstone in the cliffs of the Blue Mountains. 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.^[2]^[3]

References[edit]

^ Bembrick C. S. and Holland W.N., 1972. Stratigraphy and structure of Grose Sandstone in the Blue Mountains. Quarterly Notes of the Geological Survey of New South Wales.
^ "Mount York Claystone". Geo Science Australia. Australian Government. Retrieved 26 February 2018.
^ F.C.Loughnan, R.Goldbery & W.N.Holland (1974). "Kaolinite clayrocks in the Triassic Banks Wall sandstone of the western Blue Mountains, New South Wales, Retrieved February 26th, 2018". Journal of the Geological Society of Australia. 21 (4): 393–402. doi:10.1080/00167617408728861.

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[1] Bembrick C. S. and Holland W.N., 1972. Stratigraphy and structure of Grose Sandstone in the Blue Mountains. Quarterly Notes of the Geological Survey of New South Wales.

[Geo-2] "Mount York Claystone". Geo Science Australia. Australian Government. Retrieved 26 February 2018.

[3] F.C.Loughnan, R.Goldbery & W.N.Holland (1974). "Kaolinite clayrocks in the Triassic Banks Wall sandstone of the western Blue Mountains, New South Wales, Retrieved February 26th, 2018". Journal of the Geological Society of Australia. 21 (4): 393–402. doi:10.1080/00167617408728861.

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