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Giralang, Australian Capital Territory
Giralang () is a suburb of the Belconnen district of Canberra, located within the Australian Capital Territory, Australia. The suburb is named after the word in the language of the Wiradhuri Aboriginal tribe of the Central West of New South Wales, meaning ''star''. The suburb name was gazetted on 15 January 1974. Streets in Giralang are named after Aboriginal words for stars, astronomers and constellations seen from the southern hemisphere. In the suburb is the Giralang District Playing fields and adjacent Giralang Primary School. The suburb is bordered by Baldwin Drive, William Slim Drive and the Barton Highway. Educational facilities Giralang Primary School was under threat to close in 2006. After completion of the school closure process it was decided that Giralang Primary School will remain open. In 2011, a Jewish mikvah opened in Giralang. An early childhood education and care facility for Jewish children opened in 2013 in the refurbished former Giralang Preschool bui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belconnen
The District of Belconnen () is one of the original eighteen districts of the Australian Capital Territory (ACT), used in land administration. The district is subdivided into 27 divisions (suburbs), sections and blocks. The district of Belconnen is largely composed of Canberra suburbs. As at the , the district had a population of people; and was the most populous district within the Australian Capital Territory (ACT). Belconnen is situated approximately to the north-west of the central business district of Canberra, and surrounds an artificially created, ornamental lake, Lake Ginninderra. Lake Ginninderra was made possible by building a dam at an elbow of Ginninderra Creek. Exiting the lake, via a simple overflow, Ginninderra Creek continues, and runs north-west to its confluence with the Murrumbidgee River just beyond the north-western ACT border. Establishment and governance Following the transfer of land from the Government of New South Wales to the Commonwealth Governme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, smaller islands. With an area of , Australia is the largest country by area in Oceania and the world's List of countries and dependencies by area, sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a Megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and climates, with Deserts of Australia, deserts in the centre, tropical Forests of Australia, rainforests in the north-east, and List of mountains in Australia, mountain ranges in the south-east. The ancestors of Aboriginal Australians began arriving from south east Asia approximately Early human migrations#Nearby Oceania, 65,000 years ago, during the Last Glacial Period, last i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mudstone
Mudstone, a type of mudrock, is a fine-grained sedimentary rock whose original constituents were clays or muds. Mudstone is distinguished from '' shale'' by its lack of fissility (parallel layering).Blatt, H., and R.J. Tracy, 1996, ''Petrology.'' New York, New York, W. H. Freeman, 2nd ed, 529 pp. The term ''mudstone'' is also used to describe carbonate rocks (limestone or dolomite) that are composed predominantly of carbonate mud. However, in most contexts, the term refers to siliciclastic mudstone, composed mostly of silicate minerals. The NASA Curiosity rover has found deposits of mudstone on Mars that contain organic substances such as propane, benzene and toluene. Definition There is not a single definition of mudstone that has gained general acceptance,Boggs 2006, p.143 though there is wide agreement that mudstones are fine-grained sedimentary rocks, composed mostly of silicate grains with a grain size less than . Individual grains this size are too small to be disting ... [...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] |
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] |
Turbidite
A turbidite is the geologic deposit of a turbidity current, which is a type of amalgamation of fluidal and sediment gravity flow responsible for distributing vast amounts of clastic sediment into the deep ocean. Sequencing Turbidites were first properly described by Arnold H. Bouma (1962), who studied deepwater sediments and recognized particular "fining-up intervals" within deep water, fine-grained shales, which were anomalous because they started at pebble conglomerates and terminated in shales. This was anomalous because within the deep ocean it had historically been assumed that there was no mechanism by which tractional flow could carry and deposit coarse-grained sediments into the abyssal depths. Bouma cycles begin with an erosional contact of a coarse lower bed of pebble to granule conglomerate in a sandy matrix, and grade up through coarse then medium plane parallel sandstone; through cross-bedded sandstone; rippled cross-bedded sand/silty sand, and finally lami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greywacke
Greywacke or graywacke (German ''grauwacke'', signifying a grey, earthy rock) is a variety of sandstone generally characterized by its hardness, dark color, and poorly sorted angular grains of quartz, feldspar, and small rock fragments or lithic fragments set in a compact, clay-fine matrix. It is a texturally immature sedimentary rock generally found in Paleozoic strata. The larger grains can be sand- to gravel-sized, and matrix materials generally constitute more than 15% of the rock by volume. The term "greywacke" can be confusing, since it can refer to either the immature (rock fragment) aspect of the rock or its fine-grained (clay) component. The origin of greywacke was unknown until turbidity currents and turbidites were understood, since, according to the normal laws of sedimentation, gravel, sand and mud should not be laid down together. Geologists now attribute its formation to submarine avalanches or strong turbidity currents. These actions churn sediment and cause mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordovician
The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start of the Silurian Period Mya. The Ordovician, named after the Celtic Britons, Welsh tribe of the Ordovices, was defined by Charles Lapworth in 1879 to resolve a dispute between followers of Adam Sedgwick and Roderick Murchison, who were placing the same Rock (geology), rock beds in North Wales in the Cambrian and Silurian systems, respectively. Lapworth recognized that the fossil fauna in the disputed Stratum, strata were different from those of either the Cambrian or the Silurian systems, and placed them in a system of their own. The Ordovician received international approval in 1960 (forty years after Lapworth's death), when it was adopted as an official period of the Paleozoic Era by the International Union of Geological Sciences, Intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giralang Aerial West
Giralang () is a suburb of the Belconnen district of Canberra, located within the Australian Capital Territory, Australia. The suburb is named after the word in the language of the Wiradhuri Aboriginal tribe of the Central West of New South Wales, meaning ''star''. The suburb name was gazetted on 15 January 1974. Streets in Giralang are named after Aboriginal words for stars, astronomers and constellations seen from the southern hemisphere. In the suburb is the Giralang District Playing fields and adjacent Giralang Primary School. The suburb is bordered by Baldwin Drive, William Slim Drive and the Barton Highway. Educational facilities Giralang Primary School was under threat to close in 2006. After completion of the school closure process it was decided that Giralang Primary School will remain open. In 2011, a Jewish mikvah opened in Giralang. An early childhood education and care facility for Jewish children opened in 2013 in the refurbished former Giralang Preschool build ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barton Highway
Barton Highway is a highway in New South Wales and the Australian Capital Territory. It connects Canberra to Hume Highway at Yass, and it is part of the route from Melbourne to Canberra. It is named in honour of Sir Edmund Barton, the first Prime Minister of Australia. Route Heading east from Yass, Barton Highway originally commenced at a junction with Hume Highway, near the historic Cooma Cottage, and east of the Yass River. Requiring traffic to make a righthand turn across a single lane of the Hume Highway, the highway commenced at this point and tracked generally south by southeast, through undulating hills to the village of and entering the Australian Capital Territory (ACT), going through the village and main street of , and meeting the Federal Highway at at a junction near Sullivans Creek on Mouat Street, adjacent to Lyneham High School and to the south of the Highway's current alignment. The Gundaroo Drive/Barton Highway round-about is surrounded by a number of tree ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New South Wales
) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_date = Colony of New South Wales , established_title2 = Establishment , established_date2 = 26 January 1788 , established_title3 = Responsible government , established_date3 = 6 June 1856 , established_title4 = Federation , established_date4 = 1 January 1901 , named_for = Wales , demonym = , capital = Sydney , largest_city = capital , coordinates = , admin_center = 128 local government areas , admin_center_type = Administration , leader_title1 = Monarch , leader_name1 = Charles III , leader_title2 = Governor , leader_name2 = Margaret Beazley , leader_title3 = Premier , leader_name3 = Dominic Perrottet (Liberal) , national_representation = Parliament of Australia , national_representation_type1 = Senat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central West, New South Wales
The Central West is a region of New South Wales, Australia. The region is geographically in central and eastern New South Wales, in the area west of the Blue Mountains, which are west of Sydney. It has an area of .Central West Region - the agricultural heart of New South Wales website of New South Wales Department of State and Regional Development, accessed 12 November 2006 The region also includes the sub-region known as the , located in the eastern part of the region. The region known as the Orana, which includes the area surrounding Dubbo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
