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Widgiemooltha, Western Australia
Widgiemooltha is an abandoned town in Western Australia east of Perth between Kambalda and Norseman in the Goldfields-Esperance region of Western Australia. It is found on the southern shoreline of Lake Lefroy. The location of the original townsite is on Kingswood Street, which runs at the rear of the Widgiemooltha Roadhouse. The Coolgardie-Esperance Hwy now bypasses the original townsite. In August 2015, the only evidence of the original township was the remains of the hotel. In the 1890s gold was discovered in the area and the townsite was gazetted in 1897 as Widgemooltha, the spelling being amended to the current form in 1944. In 1898 the town had a population of 112 (100 males and 12 females). The name of the town is Aboriginal in origin and is thought to be the name of a nearby hill and rock-hole. It is thought to be related to the beak of an emu. The goldfields around the area were home to the Golden Eagle nugget, which was found in 1931 by Jim Larcombe. It wei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shire Of Coolgardie
The Shire of Coolgardie is a local government area in the Goldfields–Esperance region of Western Australia, lying roughly west and south of the city of Kalgoorlie. The Shire covers an area of , and its seat of government is the town of Coolgardie, although the twin towns of Kambalda East and Kambalda West contain two-thirds of the Shire's population. History The Shire of Coolgardie originated as the Coolgardie Road District, which was established on 7 August 1896, consisting of the rural areas surrounding the town of Coolgardie, which had already been incorporated as the Municipality of Coolgardie in 1894. As the gold rush waned in the area, the municipality merged into the road district on 20 May 1921. It was declared a shire with effect from 1 July 1961 following the passage of the ''Local Government Act 1960'', which reformed all remaining road districts into shires. Wards In 2007, the ward system was abolished. Prior to this, the Shire had eight councillors and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aboriginal Australians
Aboriginal Australians are the various Indigenous peoples of the Australian mainland and many of its islands, such as Tasmania, Fraser Island, Hinchinbrook Island, the Tiwi Islands, and Groote Eylandt, but excluding the Torres Strait Islands. The term Indigenous Australians refers to Aboriginal Australians and Torres Strait Islanders collectively. It is generally used when both groups are included in the topic being addressed. Torres Strait Islanders are ethnically and culturally distinct, despite extensive cultural exchange with some of the Aboriginal groups. The Torres Strait Islands are mostly part of Queensland but have a separate governmental status. Aboriginal Australians comprise many distinct peoples who have developed across Australia for over 50,000 years. These peoples have a broadly shared, though complex, genetic history, but only in the last 200 years have they been defined and started to self-identify as a single group. Australian Aboriginal identity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Widgiemooltha Komatiite
The Widgiemooltha Komatiite is a formation of komatiite in the Yilgarn Craton of Western Australia. Stratigraphy The stratigraphy of the Widgiemooltha Komatiite is well known to be part of the regional komatiite magmatic event also seen at the Kambalda Dome, to the north. There are comparisons which place the Widgiemooltha Komatiite as equivalent to the Silver Lake Komatiite. The Mt Edwards Basalt is correlated regionally with the Devon Consuls Basalt of Kambalda, and the Widgeimooltha Chert correlated with the Paringa Slate. The structure of the Widgiemooltha Dome has three thrusted repetitions of the basal komatiite contact and komatiite sequence including footwall Mt Edwards Basalt and hangingwall sediments (Widgiemooltha Chert). Widgiemooltha Dome The Widgiemooltha Komatiite is exposed around the margins of a large, granite dome. The Widgiemooltha Granite is a coarse to medium, holocrystalline equigranular granite with subordinate biotite and ferromagnesian minerals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nickel
Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive but large pieces are slow to react with air under standard conditions because a passivation layer of nickel oxide forms on the surface that prevents further corrosion. Even so, pure native nickel is found in Earth's crust only in tiny amounts, usually in ultramafic rocks, and in the interiors of larger nickel–iron meteorites that were not exposed to oxygen when outside Earth's atmosphere. Meteoric nickel is found in combination with iron, a reflection of the origin of those elements as major end products of supernova nucleosynthesis. An iron–nickel mixture is thought to compose Earth's outer and inner cores. Use of nickel (as natural meteoric nickel–iron alloy) has been traced as far back as 3500 BCE. Nickel was first isolated and classified a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fettling
Casting is a manufacturing process in which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify. The solidified part is also known as a ''casting'', which is ejected or broken out of the mold to complete the process. Casting materials are usually metals or various ''time setting'' materials that cure after mixing two or more components together; examples are epoxy, concrete, plaster and clay. Casting is most often used for making complex shapes that would be otherwise difficult or uneconomical to make by other methods. Heavy equipment like machine tool beds, ships' propellers, etc. can be cast easily in the required size, rather than fabricating by joining several small pieces. Casting is a 7,000-year-old process. The oldest surviving casting is a copper frog from 3200 BC. History Throughout history, metal casting has been used to make tools, weapons, and religious objects. Metal casting history and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Nugget
:''"Gold nugget" may also refer to the catfish Baryancistrus xanthellus or the mango cultivar Gold Nugget.'' A gold nugget is a naturally occurring piece of native gold. Watercourses often concentrate nuggets and finer gold in placers. Nuggets are recovered by placer mining, but they are also found in residual deposits where the gold-bearing veins or lodes are weathered. Nuggets are also found in the tailings piles of previous mining operations, especially those left by gold mining dredges. Formation Nuggets are gold fragments weathered out of an original lode. They often show signs of abrasive polishing by stream action, and sometimes still contain inclusions of quartz or other lode matrix material. A 2007 study on Australian nuggets ruled out speculative theories of supergene formation via in-situ precipitation, cold welding of smaller particles, or bacterial concentration, since crystal structures of all of the nuggets examined proved they were originally formed at high ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reef
A reef is a ridge or shoal of rock, coral or similar relatively stable material, lying beneath the surface of a natural body of water. Many reefs result from natural, abiotic processes— deposition of sand, wave erosion planing down rock outcrops, etc.—but there are also reefs such as the coral reefs of tropical waters formed by biotic processes dominated by corals and coralline algae, and artificial reefs such as shipwrecks and other anthropogenic underwater structures may occur intentionally or as the result of an accident, and sometimes have a designed role in enhancing the physical complexity of featureless sand bottoms, to attract a more diverse assemblage of organisms. Reefs are often quite near to the surface, but not all definitions require this. Earth's largest coral reef system is the Great Barrier Reef in Australia, at a length of over . Biotic There is a variety of biotic reef types, including oyster reefs and sponge reefs, but the most massive and w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Fever
A gold rush or gold fever is a discovery of gold—sometimes accompanied by other precious metals and rare-earth minerals—that brings an onrush of miners seeking their fortune. Major gold rushes took place in the 19th century in Australia, New Zealand, Brazil, Chile, South Africa, the United States, and Canada while smaller gold rushes took place elsewhere. In the 19th century, the wealth that resulted was distributed widely because of reduced migration costs and low barriers to entry. While gold mining itself proved unprofitable for most diggers and mine owners, some people made large fortunes, and merchants and transportation facilities made large profits. The resulting increase in the world's gold supply stimulated global trade and investment. Historians have written extensively about the mass migration, trade, colonization, and environmental history associated with gold rushes. Gold rushes were typically marked by a general buoyant feeling of a "free-for-all" in income mobil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Mining In Western Australia
Gold mining in Western Australia is the third largest commodity sector in Western Australia (WA), behind iron ore and petroleum, with a value of A$11.9 billion. Gold mining in Western Australia dates back to the 1880s but became a significant industry in the 1890s, following gold discoveries at Coolgardie in 1892 and Kalgoorlie in 1893. It reached an early peak in 1903, experienced a revival in the 1930s and a further revival in the 1980s. Between, the industry declined a number of times, such as during the two world wars, experiencing an absolute low point in 1976.''Mining towns of Western Australia'', page: 48 History Early history Until the 1880s, the economy of WA was based on wheat, meat and wool. A major change in the colony's fortunes occurred when gold was discovered, and prospectors by the tens of thousands swarmed across the land in a desperate attempt to discover new goldfields. The first gold rush occurred in 1885 when Charles Hall discovered alluvial gold in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beak
The beak, bill, or rostrum is an external anatomical structure found mostly in birds, but also in turtles, non-avian dinosaurs and a few mammals. A beak is used for eating, preening, manipulating objects, killing prey, fighting, probing for food, courtship, and feeding young. The terms ''beak'' and ''rostrum'' are also used to refer to a similar mouth part in some ornithischians, pterosaurs, cetaceans, dicynodonts, anuran tadpoles, monotremes (i.e. echidnas and platypuses, which have a beak-like structure), sirens, pufferfish, billfishes and cephalopods. Although beaks vary significantly in size, shape, color and texture, they share a similar underlying structure. Two bony projections – the upper and lower mandibles – are covered with a thin keratinized layer of epidermis known as the rhamphotheca. In most species, two holes called ''nares'' lead to the respiratory system. Etymology Although the word "beak" was, in the past, generally restricted to the sharpened b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Mail (Western Australia)
''The Western Mail'', or ''Western Mail'', was the name of two weekly newspapers published in Perth, Western Australia. Published 1885–1955 The first ''Western Mail'' was published on 19 December 1885 by Charles Harper and John Winthrop Hackett, co-owners of '' The West Australian'', the state's major daily paper. It was printed by James Gibney at the paper's office in St Georges Terrace. In 1901, in the publication ''Twentieth century impressions of Western Australia'', a history of the early days of the ''West Australian'' and the ''Western Mail'' was published. In the 1920s ''The West Australian'' employed its first permanent photographer Fred Flood, many of whose photographs were featured in the ''Western Mail''. In 1933 it celebrated its first use of photographs in 1897 in a ''West Australian'' article. The Western Mail featured early work from a large number of prominent West Australian authors and artists, including; Mary Durack, Elizabeth Durack, May Gibb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
