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Indooroopilly Silver Mine
The Indooroopilly Silver Mine is a historic silver mine at Indooroopilly, Brisbane, Australia History In 1918, G. Olsen and his neighbour, Patrick J. Madden discovered silver-lead traces on Mr Olsen's land at Finney's Hill, Indooroopilly, a suburb of Brisbane, Queensland, 10 km from the city centre. After some promising excavations all over the property approximately 200 feet above sea level, a mineral lease was granted to them and the first ore recovered from the site was dispatched to Cockle Creek, N.S.W. for smelting. The success of this led to the construction of an underground shaft to commence open-cut mining of the site in 1919. A number of leases were taken out on the property and adjacent land. A year later geophysical prospecting was undertaken, the first record of such a survey being undertaken in Queensland. In 1921, a larger shaft was sunk to recover ore and a small treatment plant was erected in 1924 to facilitate work there. Mining continued with P.J. Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver Mine
Silver mining is the extraction of silver from minerals, starting with mining. Because silver is often found in intimate combination with other metals, its extraction requires elaborate technologies. In 2008, ca.25,900 metric tons were consumed worldwide, most of which came from mining. Silver sources Silver-bearing ore typically contains very little silver, with much higher percentages of copper and lead. Specific minerals include argentite (Ag2 S), chlorargyrite ("horn silver," Ag Cl), polybasite (Ag, Cu)16Sb2S11), and proustite (Ag3AsS3). Silver mainly occurs as a contaminant in chalcopyrite and galena, important ores of copper and lead, respectively.Kassianidou, V. 2003. Early Extraction of Silver from Complex Polymetallic Ores, in Craddock, P.T. and Lang, J (eds) Mining and Metal production through the Ages. London, British Museum Press: 198–206 Some ores are actually mined explicitly for their silver value vs the silver being a byproduct of other metals. However s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geophysical Survey
Geophysical survey is the systematic collection of geophysical data for spatial studies. Detection and analysis of the geophysical signals forms the core of Geophysical signal processing. The magnetic and gravitational fields emanating from the Earth's interior hold essential information concerning seismic activities and the internal structure. Hence, detection and analysis of the electric and Magnetic fields is very crucial. As the Electromagnetic and gravitational waves are multi-dimensional signals, all the 1-D transformation techniques can be extended for the analysis of these signals as well. Hence this article also discusses multi-dimensional signal processing techniques. Geophysical surveys may use a great variety of sensing instruments, and data may be collected from above or below the Earth's surface or from aerial, orbital, or marine platforms. Geophysical surveys have many applications in geology, archaeology, mineral and energy exploration, oceanography, and engineeri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheatsheet
A cheat sheet (also ''cheatsheet'') or crib sheet is a concise set of notes used for quick reference. Cheat sheets were historically used by students without an instructor or teacher's knowledge to cheat on a test or exam. In the context of higher education or vocational training, where rote memorization is not as important, students may be permitted (or even encouraged) to develop and consult their own cheat sheets during exams. The act of preparing such reference notes can be an educational exercise in itself, in which case students may be restricted to using only those reference notes they have developed themselves. Some universities publish guidelines for the creation of cheat sheets. As reference cards In more general usage, a crib sheet is any short (one- or two-page) reference to terms, commands, or symbols where the user is expected to understand the use of such terms but not necessarily to have memorized all of them. Many computer applications, for example, have cri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julius Kruttschnitt II
Julius Kruttschnitt II (1885–1974) was an American-born mining manager, who helped to establish the mining industry in Queensland, Australia. Early life and career Kruttschnitt was born 7 May 1885 in New Orleans, Louisiana. He was the son of Julius Kruttschnitt and his wife Wilhelmina. The elder Kruttschnitt was a railway engineer who would go on to become the Chairman of the Southern Pacific railroad company, which also laid tracks for their line in Mexico. After an early education in Belmont, California, Julius Kruttschnitt II went to Yale University, graduating with a B.Phil. in 1906. After a year of postgraduate work, he took a position as a mine surveyor with the Arizona Copper Company. Kruttschnitt married Marie Rose Pickering in San Francisco, California in 1907. He would join the mining department of the American Smelting and Refining Company (ASARCO) at their Reforma lead mine in Mexico in 1909. He then moved to Asientos, Mexico to oversee their silver mine. Kruttschnit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colombo Plan
The Colombo Plan is a regional intergovernmental organization that began operations on 1 July 1951. The organization was conceived at an international conference, The Commonwealth Conference on Foreign Affairs held in Colombo, Ceylon (now Sri Lanka) in January 1950, and was attended by the finance ministers of Australia, the United Kingdom, Canada, Ceylon, Pakistan and New Zealand, and the prime ministers of Ceylon and India. Membership has expanded significantly over the years to the current 28 governments. The primary focus of its work is on the development of human resources in the south and southeast regions of Asia. Aid to education 1950 to 1983 came to $72 billion, of which $41 billion came from the United States. Host country of the Colombo Plan The Colombo Plan enjoys a host country agreement with the Government of Sri Lanka in the form of a memorandum of understanding with privileges and immunities that are afforded by the Government of Sri Lanka. In a speech ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
City Of Brisbane
The City of Brisbane is a local government area (LGA) which comprises the inner portion of the metropolitan area of Brisbane, the capital of Queensland, Australia. Its governing body is the Brisbane City Council. Unlike LGAs in the other mainland state capitals ( Sydney, Melbourne, Perth and Adelaide), which are generally responsible only for the central business districts and inner neighbourhoods of those cities, the City of Brisbane administers a significant portion of the Brisbane metropolitan area, serving almost half of the population of the Brisbane Greater Capital City Statistical Area (GCCSA). As such, it has a larger population than any other local government area in Australia. The City of Brisbane was the first Australian LGA to reach a population of more than one million. Its population is roughly equivalent to the populations of Tasmania, the Australian Capital Territory and the Northern Territory combined. In 2016–2017, the council administered a budget of over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Queensland
, mottoeng = By means of knowledge and hard work , established = , endowment = A$224.3 million , budget = A$2.1 billion , type = Public research university , chancellor = Peter Varghese , vice_chancellor = Deborah Terry , city = Brisbane, Queensland, Australia , students = 55,305 (2019) , undergrad = 35,051 (2019) , postgrad = 19,939 (2019) , faculty = 2,854 , campus = Multiple sites , colours = Purple , affiliations = Group of EightUniversitas 21 ASAIHL EdX , website = , logo = Logo of the University of Queensland.svg , coor = The University of Queensland (UQ, or Queensland University) is a public research university located primarily in Brisbane, the capital city of the Australian state of Queensland. Founded in 1909 by the Queensland parliament, UQ is one of the six sandstone universities, an informal designation of the oldest university in each state. As per 2023, The University of Queensland is ranked as 2nd in Australia and 42nd in the world. Al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brisbane River
The Brisbane River is the longest river in South East Queensland, Australia, and flows through the city of Brisbane, before emptying into Moreton Bay on the Coral Sea. John Oxley, the first European to explore the river, named it after the Governor of New South Wales, Sir Thomas Brisbane in 1823. The penal colony of Moreton Bay later adopted the same name, eventually becoming the present city of Brisbane. The river is a tidal estuary and the water is brackish from its mouth through the majority of the Brisbane metropolitan area westward to the Mount Crosby Weir. The river is wide and navigable throughout the Brisbane metropolitan area. The river travels from Mount Stanley. The river is dammed by the Wivenhoe Dam, forming Lake Wivenhoe, the main water supply for Brisbane. The waterway is a habitat for the rare Queensland lungfish, Brisbane River cod (extinct), and bull sharks. Early travellers along the waterway admired the natural beauty, abundant fish and rich vegetation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Henry Male Addison
George Henry Male Addison (1857–1922) was an Australian architect and artist. Many of his buildings are now heritage-listed. Early life Addison was born on 23 March 1857 in Llanelly, Wales, the son of Edward James Addison (1820–1863), a Wesleyan minister and Jane Roswell née Male (1833–1860). His father undertook missionary work in West Africa but it damaged his health and he died in 1863 and Addison was raised by his maternal grandfather, Henry Male in Somerset. His sister, Emily Jane Addison (1855–?) worked as a governess to the family of Alexander McArthur in Brixton and, in 1834 married their son John Percival McArthur (1858–1901). He was articled to architect Edmund Isles Hubbard at Rotherham and studied at the Royal Academy in London. Addison immigrated to South Australia to work on a number of large government projects. After that, he moved to Melbourne and worked for the firm Terry and Oakden, later forming the firm Oakden, Addison and Kemp. There he was one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open-pit Mining
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique of extracting rock or minerals from the earth from an open-air pit, sometimes known as a borrow. This form of mining differs from extractive methods that require tunnelling into the earth, such as long wall mining. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface. It is applied to ore or rocks found at the surface because the overburden is relatively thin or the material of interest is structurally unsuitable for tunnelling (as would be the case for cinder, sand, and gravel). In contrast, minerals that have been found underground but are difficult to retrieve due to hard rock, can be reached using a form of underground mining. To create an open-pit mine, the miners must determine the information of the ore that is underground. This is done through drilling of probe holes in the ground, then plotting ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indooroopilly, Queensland
Indooroopilly is a riverside suburb 7km west of the Brisbane CBD, Queensland, Australia. In the , Indooroopilly had a population of 12,242 people. Geography Indooroopilly is bounded to the south and south-east by the median of the Brisbane River. Indooroopilly is connected to Chelmer on the southern bank of the river by four bridges, consisting (from east to west) of a pedestrian/cycling bridge (Jack Pesch Bridge), two rail bridges ( Albert Bridge and Indooroopilly Railway Bridge), and one road bridge (Walter Taylor Bridge, ). The suburb is designated as a regional activity centre. Indooroopilly has significant commercial, office and retail sectors and is home to Indooroopilly Shopping Centre, the largest shopping centre in Brisbane's western suburbs. The suburb is popular with professionals and a large number of university students from the nearby University of Queensland campus in St Lucia. The housing stock consists of a mix of detached houses and medium density apartments. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smelting
Smelting is a process of applying heat to ore, to extract a base metal. It is a form of extractive metallurgy. It is used to extract many metals from their ores, including silver, iron, copper, and other base metals. Smelting uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind. The reducing agent is commonly a fossil fuel source of carbon, such as coke—or, in earlier times, charcoal. The oxygen in the ore binds to carbon at high temperatures due to the lower potential energy of the bonds in carbon dioxide (). Smelting most prominently takes place in a blast furnace to produce pig iron, which is converted into steel. The carbon source acts as a chemical reactant to remove oxygen from the ore, yielding the purified metal element as a product. The carbon source is oxidized in two stages. First, the carbon (C) combusts with oxygen (O2) in the air to produce carbon monoxide (CO). Second, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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