Gingin scarp

Last updated April 04, 2019

Gingin scarp is a scarp that lies to the west of the Darling Scarp in Western Australia, with the Dandaragan plateau formed between the two scarps. At the southern end of the scarp it lies to the east of the Swan Coastal Plain, to the further north the adjacent sandplain is Eneabba sandplain

The Darling Scarp, also referred to as the Darling Range or Darling Ranges, is a low escarpment running north-south to the east of the Swan Coastal Plain and Perth, Western Australia. The escarpment extends generally north of Bindoon, to the south of Pemberton. The adjacent Darling Plateau goes easterly to include Mount Bakewell near York and Mount Saddleback near Boddington. It was named after the Governor of New South Wales Lieutenant-General Ralph Darling.

Western Australia is a state occupying the entire western third of Australia. It is bounded by the Indian Ocean to the north and west, and the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a total land area of 2,529,875 square kilometres, and the second-largest country subdivision in the world, surpassed only by Russia's Sakha Republic. The state has about 2.6 million inhabitants – around 11 percent of the national total – of whom the vast majority live in the south-west corner, 79 per cent of the population living in the Perth area, leaving the remainder of the state sparsely populated.

The Swan Coastal Plain in Western Australia is the geographic feature which contains the Swan River as it travels west to the Indian Ocean. The coastal plain continues well beyond the boundaries of the Swan River and its tributaries, as a geological and biological zone, one of Western Australia's Interim Biogeographic Regionalisation for Australia (IBRA) regions. It is also one of the distinct physiographic provinces of the larger West Australian Shield division.

The scarp is formed just north of Bullsbrook ^[1] The Banksia species Banksia hookeriana is linked with the geology and geomorphology of the scarp^[2]^[3]

Bullsbrook is a suburb of Perth, Western Australia in the outer metropolitan area. It is located in the City of Swan. The original Bullsbrook townsite is located slightly west of the current town, on the 17 km mark of the Midland Railway. Bullsbrook is also the home to the RAAF Pearce airbase, a major training facility for the Royal Australian Air Force. The suburb is situated on the Great Northern Highway, 25 kilometres north of the Midland Strategic Regional Centre. It is well serviced by several major transport networks including the Great Northern Highway, Railway Parade and the Brand Highway to the north, Chittering Road to the east and Neaves Road to the west. Bullsbrook is also adjacent to the State rail network, providing an opportunity for the development of an intermodal freight transport hub. The site is further strengthened by linkage to the planned Perth-Darwin National Highway via Stock Road.

Banksia hookeriana, commonly known as Hooker's banksia, is a species of shrub of the genus Banksia in the family Proteaceae. It is native to the southwest of Western Australia and can reach up to 4 m (13 ft) high and 3 m (9.8 ft) wide. This species has long narrow serrated leaves and large, bright flower spikes, initially white before opening to a bright orange that appear over the cooler months. The flowers are pollinated by honeyeaters. The ageing flower spikes develop woody seed pods known as follicles. B. hookeriana is serotinous — large numbers of seeds are stored in the plant canopy for years until the plants are burnt by bushfire.

Notes

↑ page 14 of Gozzard, J. R. (John Robert); Geological Survey of Western Australia; Gossard, J. R (2007), Geology and landforms of the Perth region, Geological Survey of Western Australia, ISBN 978-1-74168-072-0
↑ Enright, N.J; He, T; Krauss, S.L; Lamont, B.B; Miller, B.P (2003), Genetic Variation and Biogeographic History in the Restricted Southwestern Australian Shrub, Banksia Hookeriana, V.H. Winston and Sons, Inc, retrieved 23 October 2016
↑ Krauss, S.L; He, T; Lamont, B.B; Miller, B.P; Enright, N.J (2006), Late Quaternary climate change and spatial genetic structure in the shrub Banksia hookeriana, Blackwell Publishing, retrieved 23 October 2016

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[1] 14 of Gozzard, J. R. (John Robert); Geological Survey of Western Australia; Gossard, J. R (2007), Geology and landforms of the Perth region, Geological Survey of Western Australia, ISBN 978-1-74168-072-0

[2] Enright, N.J; He, T; Krauss, S.L; Lamont, B.B; Miller, B.P (2003), Genetic Variation and Biogeographic History in the Restricted Southwestern Australian Shrub, Banksia Hookeriana, V.H. Winston and Sons, Inc, retrieved 23 October 2016

[3] Krauss, S.L; He, T; Lamont, B.B; Miller, B.P; Enright, N.J (2006), Late Quaternary climate change and spatial genetic structure in the shrub Banksia hookeriana, Blackwell Publishing, retrieved 23 October 2016