Symonston, Australian Capital Territory
Encyclopedia
Symonston is a primarily industrial and agricultural suburb of Canberra
Canberra
Canberra is the capital city of Australia. With a population of over 345,000, it is Australia's largest inland city and the eighth-largest city overall. The city is located at the northern end of the Australian Capital Territory , south-west of Sydney, and north-east of Melbourne...

, Australian Capital Territory
Australian Capital Territory
The Australian Capital Territory, often abbreviated ACT, is the capital territory of the Commonwealth of Australia and is the smallest self-governing internal territory...

, Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. Symonston is named after Sir Josiah Symon
Josiah Symon
Hon Sir Josiah Henry Symon KCMG , Scottish-Australian lawyer and politician, was a member of the Australian Senate in the First Australian Parliament, and an Attorney-General of Australia.-Biography:...

 a Legislator, Federalist and one of the Founders of the Constitution of Australia.

Located in Symonston are the Alexander Maconochie Centre
Alexander Maconochie Centre
The Alexander Maconochie Centre is an Australian prison and remand centre complex in the Australian Capital Territory.The centre is designed as a multi-role facility to replace the Belconnen Remand Centre and provide detention facilities so that prisoners who are currently held in New South Wales...

 (gaol), Periodic Detention Centre
Periodic Detention Centre
The Symonston Periodic Detention Centre is a minimum security Australian prison located in Symonston, Australian Capital Territory, Australia. It was formerly the Quamby Children's Remand Centre.-Quamby:...

 and Symonston Temporary Remand Centre and three caravan parks: Canberra South Motor Park, Sundown Village and Narrabundah Longstay Caravan Park. Geoscience Australia
Geoscience Australia
Geoscience Australia is an agency of the Australian federal government. It carries out geoscientific research.On a user pays basis it produces geospatial products such as topographic maps and satellite imagery.-History:...

 has its headquarters in Symonston.

Planning

The Symonston area has traditionally been denoted 'Broadacre' area by the planning authorities, meaning that it has retained a traditionally rural character with some larger institution uses, particularly by the Australian Defence Force
Australian Defence Force
The Australian Defence Force is the military organisation responsible for the defence of Australia. It consists of the Royal Australian Navy , Australian Army, Royal Australian Air Force and a number of 'tri-service' units...

 and Geoscience Australia
Geoscience Australia
Geoscience Australia is an agency of the Australian federal government. It carries out geoscientific research.On a user pays basis it produces geospatial products such as topographic maps and satellite imagery.-History:...

. With the release of the Canberra Spatial Plan by the ACT Government, the area and the adjoining Majura Valley has been denoted as an employment corridor centred on Canberra Airport
Canberra International Airport
Canberra International Airport , now trading as Canberra Airport, is the airport serving Australia's capital city, Canberra, and the city of Queanbeyan, NSW. Located at the eastern edge of North Canberra, it is the 8th busiest airport in Australia. The airport is the main hub for Brindabella Airlines...

 and Fyshwick.

Geology

Rocks in Symonston are from the Silurian
Silurian
The Silurian is a geologic period and system that extends from the end of the Ordovician Period, about 443.7 ± 1.5 Mya , to the beginning of the Devonian Period, about 416.0 ± 2.8 Mya . As with other geologic periods, the rock beds that define the period's start and end are well identified, but the...

 age
Mount Painter Volcanics dark grey to green grey dacitic tuff
Tuff
Tuff is a type of rock consisting of consolidated volcanic ash ejected from vents during a volcanic eruption. Tuff is sometimes called tufa, particularly when used as construction material, although tufa also refers to a quite different rock. Rock that contains greater than 50% tuff is considered...

 underlies most of Symonston.
Narrabundah Ashstone
Ashstone
Ashstone is a kind of volcanic rock formed from fine volcanic ash.During an explosive volcanic eruption, fragmentation of the magma can result in the formation of volcanic ash, consisting of sand-sized or smaller particles....

 Member is found in the northern corner near the motor park.
Canberra Formation, calcareous shale
Shale
Shale is a fine-grained, clastic sedimentary rock composed of mud that is a mix of flakes of clay minerals and tiny fragments of other minerals, especially quartz and calcite. The ratio of clay to other minerals is variable. Shale is characterized by breaks along thin laminae or parallel layering...

 found to the east of the ashstone.
Further to the east and over to Harman is found the dacitic andesite
Andesite
Andesite is an extrusive igneous, volcanic rock, of intermediate composition, with aphanitic to porphyritic texture. In a general sense, it is the intermediate type between basalt and dacite. The mineral assemblage is typically dominated by plagioclase plus pyroxene and/or hornblende. Magnetite,...

 of the Ainslie Volcanics.
An unnamed coarse leucogranite
Leucogranite
In geology, leucogranites are amongst the youngest intrusions related to anatexis of continental crust anywhere in the world. Leucogranites are commonly found in deformed metapelitic/metagraywacke sequences that have been thrusted over basements during crustal thickening associated with continental...

 has a small out crop east of Jerrabomberra creek.

Geoscience Australia
Geoscience Australia
Geoscience Australia is an agency of the Australian federal government. It carries out geoscientific research.On a user pays basis it produces geospatial products such as topographic maps and satellite imagery.-History:...

 is the Australian Government organisation tasked with supplying scientific information and knowledge about the geography and geology of Australia
Geology of Australia
Australia is a continent situated on the Indo-Australian Plate.The geology of Australia includes virtually all known rock types and from all geological time periods spanning over 3.8 billion years of the Earth's history.-Components:...

. It has information about the geology of the whole of Australia including Canberra.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK