banks, wall, sandstone, type, sedimentary, rock, occurring, sydney, basin, eastern, australia, this, stratum, metres, thick, often, seen, blue, mountains, such, three, sisters, katoomba, katoomba, australia, rock, mostly, quartzose, also, contains, many, irons. Banks Wall Sandstone is a type of sedimentary rock occurring in the Sydney Basin in eastern Australia This stratum is up to 115 metres thick Often seen in the Blue Mountains such as at the Three Sisters at Katoomba Katoomba Australia The rock is mostly quartzose but also contains many ironstone bands with conglomerates and numerous claystone lenses several metres thick It is situated above the Mount York Claystone Formed in the early Triassic it is part of the Narrabeen Group of sedimentary rocks 1 2 See also editSydney Basin Mount York Claystone Narrabeen groupReferences edit Banks Wall Sandstone Geo Science Australia Australian Government Retrieved 7 May 2018 Walking Tracks the Botanist s Way Blue Mountains Botanic Garden Mount Tomah Archived from the original on 7 May 2018 Retrieved 6 May 2018 nbsp This article about a specific Australian geological feature is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Banks Wall Sandstone amp oldid 1222625729, wikipedia, wiki, book, books, library,
