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Tower Hill (volcano)
Tower Hill is an inactive volcano on the south-west coast of Victoria, Australia, approximately west of Melbourne, and north-west of Warrnambool. The Tower Hill crater is roughly wide and high, with a gradient of between 10% to 80% at the higher points. Within the crater, a series of later volcanic explosions formed a number of scoria cones and spheres, surrounded by a crater lake. Being a giant nested maar, Tower Hill is of international geological significance. The Dhauwurdwurrung name for the volcano is ''Koroitj''. History Aboriginal Australian kitchen middens at Tower Hill contain 5000-year-old Tasmanian devil bones. Greenstone axe heads and other artefacts excavated from the tuff indicate that Aboriginal people were resident in the area when the volcano erupted. A basalt tool dubbed the "Bushfield Axe", found buried under volcanic ash near Tower Hill in 1947, was particularly significant. The archaeological evidence aligns with local people's oral histories of vo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria (Australia)
Victoria is a state in southeastern Australia. It is the second-smallest state with a land area of , the second most populated state (after New South Wales) with a population of over 6.5 million, and the most densely populated state in Australia (28 per km2). Victoria is bordered by New South Wales to the north and South Australia to the west, and is bounded by the Bass Strait to the south (with the exception of a small land border with Tasmania located along Boundary Islet), the Great Australian Bight portion of the Southern Ocean to the southwest, and the Tasman Sea (a marginal sea of the South Pacific Ocean) to the southeast. The state encompasses a range of climates and geographical features from its temperate coastal and central regions to the Victorian Alps in the northeast and the semi-arid north-west. The majority of the Victorian population is concentrated in the central-south area surrounding Port Phillip Bay, and in particular within the metropolit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Ash
Volcanic ash consists of fragments of rock, mineral crystals, and volcanic glass, created during volcano, volcanic eruptions and measuring less than 2 mm (0.079 inches) in diameter. The term volcanic ash is also often loosely used to refer to all explosive eruption products (correctly referred to as ''tephra''), including particles larger than 2 mm. Volcanic ash is formed during explosive volcanic eruptions when dissolved gases in magma expand and escape violently into the atmosphere. The force of the gases shatters the magma and propels it into the atmosphere where it solidifies into fragments of volcanic rock and glass. Ash is also produced when magma comes into contact with water during phreatomagmatic eruptions, causing the water to explosively flash to steam leading to shattering of magma. Once in the air, ash is transported by wind up to thousands of kilometres away. Due to its wide dispersal, ash can have a number of impacts on society, including animal a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tower Hill Wildlife Reserve
Tower Hill Wildlife Reserve, formerly Tower Hill State Game Reserve, is a protected area located in the Australian state of Victoria, approximately west of Melbourne, and north-west of Warrnambool. It encompasses the extinct Tower Hill volcano and wetland and is in area. Established in 1892 as a national park, the land remained degraded until 1961, when it was declared a State Game Reserve and an extensive revegetation program was begun. It is now full of mature native vegetation and reintroduced native species, such as koalas, wallabies and possums. The Worn Gundidj Aboriginal Cooperative manages the park in partnership with Parks Victoria. History Aboriginal Australian kitchen middens at Tower Hill show 5000-year-old Tasmanian devil bones. Greenstone axe heads and other artefacts excavated from the tuff indicated that Aboriginal people were resident in the area when the volcano erupted, dated in 1990 as 25,000 BP. However, it was reported in 2020 that new evidence, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Revegetation
Revegetation is the process of replanting and rebuilding the soil of disturbed land. This may be a natural process produced by plant colonization and succession, manmade rewilding projects, accelerated process designed to repair damage to a landscape due to wildfire, mining, flood, or other cause. Originally the process was simply one of applying seed and fertilizer to disturbed lands, usually grasses or clover. The fibrous root network of grasses is useful for short-term erosion control, particularly on sloping ground. Establishing long-term plant communities requires forethought as to appropriate species for the climate, size of stock required, and impact of replanted vegetation on local fauna. The motivations behind revegetation are diverse, answering needs that are both technical and aesthetic, but it is usually erosion prevention that is the primary reason. Revegetation helps prevent soil erosion, enhances the ability of the soil to absorb more water in significant rain event ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eugene Von Guerard
Johann Joseph Eugene von GuérardHis first name is variously spelled "Eugen", "Eugene", "Eugène", one source mentions "Jean" (instead of "Johann"); his surname is spelled "Guerard" or "Guérard". The most frequent combination is that used by the National Gallery of Australia: "Eugene von Guérard". The artist's birth certificate shows his name as "Johann Joseph Eugen von Guerard". (17 November 181117 April 1901) was an Austrian-born artist, active in Australia from 1852 until 1882. Known for his finely detailed landscapes in the tradition of the Düsseldorf school of painting, he is represented in Australia's major public galleries, and is referred to in the country as Eugene von Guerard. Early life Born in Vienna, Austria, von Guerard toured Italy with his father (a painter of miniatures at the court of Emperor Francis I of Austria) from 1826, and between 1830 and 1832 resided in Rome, where he became involved with a number of German artists. The foremost landscape painter am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matthew Flinders
Captain Matthew Flinders (16 March 1774 – 19 July 1814) was a British navigator and cartographer who led the first inshore circumnavigation of mainland Australia, then called New Holland. He is also credited as being the first person to utilise the name ''Australia'' to describe the entirety of that continent including Van Diemen's Land (now Tasmania), a title he regarded as being "more agreeable to the ear" than previous names such as ''Terra Australis''. Flinders was involved in several voyages of discovery between 1791 and 1803, the most famous of which are the circumnavigation of Australia and an earlier expedition when he and George Bass confirmed that Van Diemen's Land was an island. While returning to Britain in 1803, Flinders was arrested by the French governor at Isle de France (Mauritius). Although Britain and France were at war, Flinders thought the scientific nature of his work would ensure safe passage, but he remained under arrest for more than six years. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Corvette Géographe
''Géographe'' was a 20-gun ''Serpente''-class corvette of the French Navy. She was named ''Uranie'' in 1797, and renamed ''Galatée'' in 1799, still on her building site. Her builder refused to launch her, as he had not been paid to that time. Finally launched in June 1800, she was renamed ''Géographe'' on 23 August 1800. On 19 October 1800, under captain Nicolas Baudin, she departed Le Havre with ''Naturaliste'' for an exploration of Australia. She carried a number of scholars, painters, and designers, as well as Anselme Riedlé, the gardener, who had already accompanied Baudin on a previous expedition, and Charles Alexander Lesueur, an artist.Barrey (1907), p.60. The two vessels reached Tenerife on 13 November. They then crossed the equator on 11 December and arrived at Isle de France (Mauritius), on 16 March 1801. For some 18 months ''Naturaliste'' and ''Géographe'' explored the less-known regions of New Holland (Australia), and Van Diemen's Land. On 30 May Baudin made ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicolas Baudin
Nicolas Thomas Baudin (; 17 February 1754 – 16 September 1803) was a French explorer, cartographer, naturalist and hydrographer, most notable for his explorations in Australia and the southern Pacific. Biography Early career Born a commoner in Saint-Martin-de-Ré on the Île de Ré on 17 February 1754, Nicolas Baudin joined the merchant navy as an apprentice (''pilotin'') at the age of 15; he was then "of average height with brown hair". He then joined the French East India Company at the age of 20 on ''Flamand''. He returned from India on ''L'Étoile'' and arrived at Lorient. At the beginning of 1778, he was to set sail from Nantes on ''Lion'' as second lieutenant. It was a ship equipped by his uncle, Jean Peltier Dudoyer, at the request of the Americans, which would become a privateer and be renamed ''Deane''. At first the Minister for the Navy was against it, but he finally changed his mind and authorised the departure, as France had signed a treaty with the United ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gunditjmara
The Gunditjmara or Gunditjamara, also known as Dhauwurd Wurrung, are an Aboriginal Australian people of southwestern Victoria. They are the traditional owners of the areas now encompassing Warrnambool, Port Fairy, Woolsthorpe and Portland. Their land includes much of the Budj Bim heritage areas. The Kerrup Jmara (Kerrupjmara, Kerrup-Jmara) are a clan of the Gunditjmara, whose traditional lands are around Lake Condah. The Koroitgundidj (Koroit gundidj) are another clan group, whose lands are around Tower Hill. The Djargurd Wurrung, Girai wurrung, and Gadubanud are also Aboriginal Victorian groups who all spoke languages in the dialect continuum known as the Dhauwurd Wurrung language ("Gunditjmara language"). Name Gunditjmara is formed from two morphemes: ''Gunditj'', a suffix denoting belonging to a particular group or locality, and the noun ''mara'', meaning "man". Language The Dhauwurd wurrung language is a term used for a group of languages spoken by various groups of the Gu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Budj Bim
Budj Bim, also known as Mount Eccles, is a dormant volcano near Macarthur in southwestern Victoria, Australia. It lies within the geologically-defined area known as the Newer Volcanics Province, which is the youngest volcanic area in Australia and stretches from western Victoria to south-eastern South Australia. It is situated within the Budj Bim National Park. Budj Bim is the Gunditjmara name, meaning "High Head". The roughly conical peak rises . The peak is a scoria hill that was thrown up beside a group of three overlapping volcanic craters that now contain Lake Surprise. A line of smaller craters and scoria cones runs to the southeast. Lava flows extend to form a shield volcano and are fed by several lava channels, or "lava canals" as they are known locally. This lava flow, known as the Tyrendarra lava flow, changed the drainage pattern of the region, and created large wetlands. Large areas to the west and south-west of the mountain have been heritage-listed. The Budj Bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiometric Dating
Radiometric dating, radioactive dating or radioisotope dating is a technique which is used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed. The method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay. The use of radiometric dating was first published in 1907 by Bertram Boltwood and is now the principal source of information about the absolute age of rocks and other geological features, including the age of fossilized life forms or the age of Earth itself, and can also be used to date a wide range of natural and man-made materials. Together with stratigraphic principles, radiometric dating methods are used in geochronology to establish the geologic time scale. Among the best-known techniques are radiocarbon dating, potassium–argon dating and uranium–lead dating. By al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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