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Werribee Plain
The Werribee Plain is an expansive low-lying flat land located between the northwestern shore of Port Phillip Bay and the Grampians Central Highlands of Victoria, Australia, shared between Melbourne and Geelong. Named after the Werribee River, the plains are notable for their extensive, flat and rather featureless spans, interspersed by the occasional vertical feature, such as the You Yangs, a series of granite ridges and several small extinct volcanoes. The Werribee Plain forms the eastern bayside portion of the vast Western Volcanic Plains between the Grampians and the Otway Ranges, which extend from the western suburbs of Melbourne to the South Australian border. Geology Volcanoes began erupting lava flows about 4.5 million years ago, and the youngest eruptions are only about 10,000 years old. There are over 400 mapped craters and vents on the plains. While all these individual volcanoes are extinct, the volcanic field itself is only dormant, so new eruptions are possibl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plain
In geography, a plain is a flat expanse of land that generally does not change much in elevation, and is primarily treeless. Plains occur as lowlands along valleys or at the base of mountains, as coastal plains, and as plateaus or uplands. In a valley, a plain is enclosed on two sides, but in other cases a plain may be delineated by a complete or partial ring of hills, by mountains, or by cliffs. Where a geological region contains more than one plain, they may be connected by a pass (sometimes termed a gap). Coastal plains mostly rise from sea level until they run into elevated features such as mountains or plateaus. Plains are one of the major landforms on earth, where they are present on all continents, and cover more than one-third of the world's land area. Plains can be formed from flowing lava; from deposition of sediment by water, ice, or wind; or formed by erosion by the agents from hills and mountains. Biomes on plains include grassland ( temperate or subtr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western District (Victoria)
The Western District comprises western regions of the Australian state of Victoria. It is said to be an illdefined district, sometimes incorrectly referred to as an economic region,. The district is located within parts of the Barwon South West and the Grampians regions; extending from the south-west corner of the state to Ballarat in the east and as far north as Ararat. The district is bounded by the Wimmera district in the north, by the Goldfields district in the east, by Bass Strait and the Southern Ocean in the south, and by the South Australian border in the west. The district is well known for the production of wool. The most populated city in the Western District is the Ballarat region, with 96,940 inhabitants. The principal centres of the district are: Warrnambool, Hamilton, Colac, Portland, Casterton, Port Fairy, Camperdown, and Terang. Other cities and towns in or on the edge of the district include: Coleraine, Merino, Heywood, Dunkeld, Penshurst, Macart ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landforms Of Victoria (state)
A landform is a natural or anthropogenic land feature on the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Landforms include hills, mountains, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins. Physical characteristics Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, stratification, rock exposure and soil type. Gross physical features or landforms include intuitive elements such as berms, mounds, hills, ridges, cliffs, valleys, rivers, peninsulas, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains) elements including various kinds of inland and oceanic waterbodies and sub-surface features. Mountains, hills, plateaux, and plains are t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devonian
The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, where rocks from this period were first studied. The first significant adaptive radiation of life on dry land occurred during the Devonian. Free-sporing vascular plants began to spread across dry land, forming extensive forests which covered the continents. By the middle of the Devonian, several groups of plants had evolved leaves and true roots, and by the end of the period the first seed-bearing plants appeared. The arthropod groups of myriapods, arachnids and hexapods also became well-established early in this period, after starting their expansion to land at least from the Ordovician period. Fish reached substantial diversity during this time, leading the Devonian to often be dubbed the Age of Fishes. The placoderms began dominat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedimentary Rock
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place. The particles that form a sedimentary rock are called sediment, and may be composed of geological detritus (minerals) or biological detritus (organic matter). The geological detritus originated from weathering and erosion of existing rocks, or from the solidification of molten lava blobs erupted by volcanoes. The geological detritus is transported to the place of deposition by water, wind, ice or mass movement, which are called agents of denudation. Biological detritus was formed by bodies and parts (mainly shells) of dead aquatic organisms, as well as their fecal mass, suspended in water and slowly piling up on the floor of water bodies (marine snow). Sedimentation may also occur as dissolved minerals precipitate from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magma
Magma () is the molten or semi-molten natural material from which all igneous rocks are formed. Magma is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natural satellites. Besides molten rock, magma may also contain suspended crystals and gas bubbles. Magma is produced by melting of the mantle or the crust in various tectonic settings, which on Earth include subduction zones, continental rift zones, mid-ocean ridges and hotspots. Mantle and crustal melts migrate upwards through the crust where they are thought to be stored in magma chambers or trans-crustal crystal-rich mush zones. During magma's storage in the crust, its composition may be modified by fractional crystallization, contamination with crustal melts, magma mixing, and degassing. Following its ascent through the crust, magma may feed a volcano and be extruded as lava, or it may solidify underground to form an intrusion, such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Crater
A volcanic crater is an approximately circular depression in the ground caused by volcanic activity. It is typically a bowl-shaped feature containing one or more vents. During volcanic eruptions, molten magma and volcanic gases rise from an underground magma chamber, through a conduit, until they reach the crater's vent, from where the gases escape into the atmosphere and the magma is erupted as lava. A volcanic crater can be of large dimensions, and sometimes of great depth. During certain types of explosive eruptions, a volcano's magma chamber may empty enough for an area above it to subside, forming a type of larger depression known as a caldera. Geomorphology In most volcanoes, the crater is situated at the top of a mountain formed from the erupted volcanic deposits such as lava flows and tephra. Volcanoes that terminate in such a summit crater are usually of a conical form. Other volcanic craters may be found on the flanks of volcanoes, and these are commonly referred to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcano
A volcano is a rupture in the Crust (geology), crust of a Planet#Planetary-mass objects, planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and volcanic gas, gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where list of tectonic plates, tectonic plates are divergent boundary, diverging or convergent boundary, converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Australia
South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories by area, and second smallest state by population. It has a total of 1.8 million people. Its population is the second most highly centralised in Australia, after Western Australia, with more than 77 percent of South Australians living in the capital Adelaide, or its environs. Other population centres in the state are relatively small; Mount Gambier, the second-largest centre, has a population of 33,233. South Australia shares borders with all of the other mainland states, as well as the Northern Territory; it is bordered to the west by Western Australia, to the north by the Northern Territory, to the north-east by Queensland, to the east by New South Wales, to the south-east by Victoria, and to the south by the Great Australian Bight.M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Suburbs (Melbourne)
The western suburbs is the metropolitan area directly west of the Melbourne Central Business District in Melbourne, Victoria, Australia. Municipalities There are six main municipalities (cities, councils, and shires) in the western suburbs. These are: * City of Brimbank * City of Hobsons Bay * City of Maribyrnong * City of Melton * City of Moonee Valley * City of Wyndham Major suburbs, satellite cities and commercial areas The western suburbs of Melbourne boast some of the oldest landmarks and housing in Melbourne, while also introducing new suburbs and a proud multicultural community. Major suburbs are: City of Brimbank * Sunshine * Deer Park * Albion * St Albans * Albanvale * Kings Park * Delahey * Derrimut * Sydenham * Taylors Lakes * Keilor * Hillside * Sunshine West City of Maribyrnong * Maribyrnong * Braybrook * Footscray * Yarraville * Tottenham * Seddon * Kingsville * West Footscray * Maidstone City of Melton * Burnside * Burnside Heights * Brookf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otway Ranges
The Great Otway National Park is a national park located in the Barwon South West region of Victoria, Australia. The national park is situated approximately southwest of Melbourne, in the Otway Ranges, a low coastal mountain range. It contains a diverse range of landscapes and vegetation types. History Commercial logging began in the Otway Ranges in the 1880s. After World War One, with improvements to the roads and railways, logging increased massively, peaking in 1961, almost entirely stripping the Otway Ranges of its old-growth forest and causing land degradation issues, but has since been greatly reduced. The forest standing today highlights the lengthy period needed to regrow the giant trees of the past and to reproduce the ecological complexity nearing that of the original wild forest. Historically, several bushfires have burnt through the park's predecessor reserves, shaping its ecology and plant and animal diversity. The last major fire was part of the Ash Wednesday b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grampians National Park
The Grampians National Park commonly referred to as The Grampians, is a national park located in the Grampians region of Victoria, Australia. The Jardwadjali name for the mountain range itself is Gariwerd. The national park is situated between and on the Western Highway and on the Glenelg Highway, west of Melbourne and east of Adelaide. Proclaimed as a national park on , the park was listed on the National Heritage List on 15 December 2006 for its outstanding natural beauty and being one of the richest Aboriginal rock art sites in south-eastern Australia. The Grampians feature a striking series of mountain ranges of sandstone. The Gariwerd area features about 90% of the rock art in the state. Etymology At the time of European colonisation, the Grampians had a number of indigenous names, one of which was ''Gariwerd'' in the western Kulin language of the Mukjarawaint, Jardwadjali and Djab Wurrung people, who lived in the area and who shared 90 per cent of their v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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