|
Hughes, Australian Capital Territory
Hughes is a suburb in the Canberra, Australia district of Woden. The postcode is 2605. The area of the suburb is 1.81 km2. History Hughes is named after The Right Honourable William Morris "Billy" Hughes, seventh Prime Minister of Australia from 1915 to 1923. Streets in the suburb are named with the theme of World War I armed services personnel and contemporaries of William Hughes. The suburb was gazetted on 20 September 1962, with a population of nine. Residential construction began in 1963, and by 1974 Hughes had a population of 4050. Geography Hughes adjoins the suburbs of Deakin, Garran, Phillip and Curtin. It is bounded by Carruthers Street to the North, Yarra Glen and Yamba Drive to the west, and the Red Hill area of Canberra Nature Park to the east and south. Geology Hughes has several different kinds of rock from the Silurian period. Shale from the Yarralumla Formation is in the south west. Cream coloured rhyolite from the Mount Painter Volcanics i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woden Valley (district)
The District of Woden Valley () is one of the original eighteen districts of the Australian Capital Territory used in land administration. The district is subdivided into divisions (suburbs), sections and blocks. The district of Woden Valley lies entirely within the bounds of the city of Canberra, the capital city of Australia. The name of Woden Valley is taken from the name of a nearby homestead owned by Dr James Murray who named the homestead in October 1837 after the Old English god of wisdom, Woden. He named it this as he was to spend his life in the pursuit of wisdom. However, historian Dr Harold Koch considers that the name may have its origins in the Aboriginal word for possum, either ''wadyan'' or ''wadhan'', influenced in interpretation by the term known to English speakers of 'Woden'. In 1964 it was the first satellite city to be built, separate from the Canberra Central district. It has its own shopping centre, employment opportunities and accommodation with twelve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of The Australian Capital Territory
The geology of the Australian Capital Territory includes rocks dating from the Ordovician around 480 million years ago, whilst most rocks are from the Silurian. During the Ordovician period the region—along with most of eastern Australia—was part of the ocean floor. The area contains the ''Pittman Formation'' consisting largely of Quartz-rich sandstone, siltstone and shale; the Adaminaby Beds and the Acton Shale. Most of the younger rocks are pyroclastic deposits from explosive volcanic eruptions, but the ''Yarralumla Formation'' is a sedimentary mudstone/siltstone formation that was formed around 425 million years ago. In the 1840s fossils of brachiopods and trilobites from the Silurian period were discovered at Woolshed Creek near Duntroon by the Reverend William Branwhite Clarke. At the time these were the oldest fossils discovered in Australia, though this record has since been far surpassed. Other specific geological places of interest include the State Circle cutting a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brindabella National Park
Brindabella National Park is an national park in New South Wales, Australia, that is located approximately southwest of Sydney central business district in the Brindabella Range. Much of the eastern boundary of the national park forms part of the western border of the Australian Capital Territory with New South Wales. On 7 November 2008, the park was registered on the Australian National Heritage List as one of eleven areas constituting the Australian Alps National Parks and Reserves. See also * Protected areas of New South Wales The Protected areas of New South Wales include both terrestrial and marine protected areas. there are 225 national parks in New South Wales. Based on the Collaborative Australian Protected Area Database (CAPAD) 2020 data there are 2136 separat ... References External linksBrindabella National Parks website [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Hill
Red Hill may refer to: Places Australia * Red Hill, Queensland, a suburb of Brisbane * Red Hill, Queensland (Western Downs Region), a locality * Red Hill, Victoria * Red Hill South, Victoria * Red Hill, Australian Capital Territory * Red Hill, Western Australia * Red Hill, Gulgong, New South Wales Canada * Red Hill Valley, a valley in Hamilton, Ontario * Red Hill Creek, a creek in Hamilton, Ontario United Kingdom Natural formations * Red Hill (salt making), an archaeological feature found in south-east England associated with ancient salt production * Red Hill, Hampshire, England * Red Hill, Lincolnshire, England, a Wildlife Trust nature reserve Inhabited places * Red Hill, Bournemouth, England, a location in the United Kingdom * Red Hill, Herefordshire, England, a place in Herefordshire * Red Hill, Kent, England, location in the United Kingdom * Red Hill, Leicestershire, England, location in the United Kingdom * Red Hill, London, a place near Chislehurst in the London ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hughes Suburb Sign
Hughes may refer to: People * Hughes (surname) * Hughes (given name) Places Antarctica * Hughes Range (Antarctica), Ross Dependency * Mount Hughes, Oates Land * Hughes Basin, Oates Land * Hughes Bay, Graham Land * Hughes Bluff, Victoria Land * Hughes Glacier, Victoria Land * Hughes Island, Victoria Land * Hughes Peninsula, Ellsworth Land * Hughes Point, Ellsworth Land Australia * Division of Hughes, an electoral district * Hughes, Australian Capital Territory, a suburb of Canberra * Hughes, Northern Territory, a rural locality United States * Hughes, Alaska, a city * Hughes, Arkansas, a city * Hughes, Iowa, a ghost town * Hughes, Wisconsin, a town * Hughes County, Oklahoma * Hughes County, South Dakota * Hughes Lake (California) * Hughes Mountain, Missouri * Hughes River (Virginia) * Hughes River (West Virginia) Other * Hughes, Santa Fe, Argentina, a town * Hughes Range (British Columbia), Canada * Hughes Reef, South China Sea * 1878 Hughes, an asteroid Businesse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tuff
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition, the ash is lithified into a solid rock. Rock that contains greater than 75% ash is considered tuff, while rock containing 25% to 75% ash is described as tuffaceous (for example, ''tuffaceous sandstone''). Tuff composed of sandy volcanic material can be referred to as volcanic sandstone. Tuff is a relatively soft rock, so it has been used for construction since ancient times. Because it is common in Italy, the Romans used it often for construction. The Rapa Nui people used it to make most of the ''moai'' statues on Easter Island. Tuff can be classified as either igneous or sedimentary rock. It is usually studied in the context of igneous petrology, although it is sometimes described using sedimentological terms. Tuff is often erroneously called tufa in guidebooks and in television programmes. Volcanic ash The material that is expelled in a volcanic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhyodacite
Rhyodacite is a volcanic rock intermediate in composition between dacite and rhyolite. It is the extrusive equivalent of those plutonic rocks that are intermediate in composition between monzogranite and granodiorite. Rhyodacites form from rapid cooling of lava relatively rich in silica and low in alkali metal oxides. Description Under IUGS guidelines, rhyodacites are not formally defined in either the QAPF classification, used to classify igneous rocks by their mineral content, or the TAS classification, used to classify volcanic rocks chemically. However, the IUGS allows the use of the term to describe rocks close to the boundary between the rhyolite and dacite fields in each classification scheme. Rhyodacite then describes a fine-grained igneous rock containing between 20% and 60% quartz and in which plagioclase makes up about two-thirds of the total feldspar content. Such a rock will contain between 69% and 72% silica by weight. The U.S. Geological Survey defines rhyodacite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhyolite
Rhyolite ( ) is the most silica-rich of volcanic rocks. It is generally glassy or fine-grained (aphanitic) in texture, but may be porphyritic, containing larger mineral crystals (phenocrysts) in an otherwise fine-grained groundmass. The mineral assemblage is predominantly quartz, sanidine, and plagioclase. It is the extrusive equivalent to granite. Rhyolitic magma is extremely viscous, due to its high silica content. This favors explosive eruptions over effusive eruptions, so this type of magma is more often erupted as pyroclastic rock than as lava flows. Rhyolitic ash-flow tuffs are among the most voluminous of continental igneous rock formations. Rhyolitic tuff has been extensively used for construction. Obsidian, which is rhyolitic volcanic glass, has been used for tools from prehistoric times to the present day because it can be shaped to an extremely sharp edge. Rhyolitic pumice finds use as an abrasive, in concrete, and as a soil amendment. Description Rhyolite i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yarralumla, Australian Capital Territory
Yarralumla () is a large inner south suburb of Canberra, the capital city of Australia. Located approximately south-west of the city, Yarralumla extends along the south-west bank of Lake Burley Griffin from Scrivener Dam to Commonwealth Avenue. In 1828, Henry Donnison, a Sydney merchant, was granted a lease on the western side of Stirling Ridge. Donnison's land was named ''Yarralumla'' in a survey of the area conducted in 1834, apparently after the indigenous people's term for the area. It was also spelt ''Yarrolumla'' in other documents. In 1881, the estate was bought by Frederick Campbell, grandson of Robert Campbell who had built a house at nearby Duntroon. Frederick completed the construction of a large, gabled, brick house on his property in 1891 that now serves as the site of Government House, the official residence of the Governor-General of Australia. Campbell's house replaced an elegant, Georgian-style homestead, the main portions of which were erected from local s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.Blatt, Harvey and Robert J. Tracy (1996) ''Petrology: Igneous, Sedimentary and Metamorphic'', 2nd ed., Freeman, pp. 281–292 Shale is characterized by its tendency to split into thin layers ( laminae) less than one centimeter in thickness. This property is called '' fissility''. Shale is the most common sedimentary rock. The term ''shale'' is sometimes applied more broadly, as essentially a synonym for mudrock, rather than in the more narrow sense of clay-rich fissile mudrock. Texture Shale typically exhibits varying degrees of fissility. Because of the parallel orientation of clay mineral flakes in shale, it breaks into thin layers, often splintery and usually parallel to the otherwise indistinguishable beddin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silurian
The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago ( Mya), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleozoic Era. As with other geologic periods, the rock beds that define the period's start and end are well identified, but the exact dates are uncertain by a few million years. The base of the Silurian is set at a series of major Ordovician–Silurian extinction events when up to 60% of marine genera were wiped out. One important event in this period was the initial establishment of terrestrial life in what is known as the Silurian-Devonian Terrestrial Revolution: vascular plants emerged from more primitive land plants, dikaryan fungi started expanding and diversifying along with glomeromycotan fungi, and three groups of arthropods (myriapods, arachnids and hexapods) became fully terrestrialized. A significant evolutionary milestone during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canberra Nature Park
The Canberra Nature Park is a series of thirty three separate protected areas in and around Canberra, Australian Capital Territory, ranging from bushland hills to lowland native grassland. Many of the areas have previously been cleared for grazing, but many are now being returned to native bushland through revegetation and rehabilitation programs. Canberra's inner hills Black Mountain, Mount Ainslie, Mount Majura, Mount Pleasant, Russell Hill, Red Hill, Mount Mugga, O'Connor Ridge, Bruce Ridge, Aranda Bushland, Mount Painter, The Pinnacle, Lyneham Ridge, Oakey Hill, Mount Taylor, Isaacs Ridge, Mount Stromlo, Mount Arawang, Neighbour Hill, Wanniassa Hill, and Narrabundah Hill are protected from development by the National Capital Plan and almost all are now part of the Canberra Nature Park system. These hills provide a scenic backdrop and natural setting for Canberra's urban areas, as originally set out in the Walter Burley Griffin Plan. Most people in Canberra live wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
