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Gold Dredge
A gold dredge is a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. Original gold dredges were large, multi-story machines built in the first half of the 1900s. In modern times the term refers to small suction machines marketed as "gold dredges" to individuals seeking gold. Concept The basic concept of retrieving gold via placer mining has not changed since antiquity. The concept is that the gold in sand or soil will settle to the bottom because gold is heavy/dense, and dirt, sand and rock will wash away, leaving the gold behind. The original methods to perform placer mining involved gold panning, sluice boxes, and rockers. Each method involves washing sand, gravel and dirt in water. Gold then settles to the bottom of the pan, or into the bottom of the riffles of the sluice box. A gold dredge operates in a similar manner but on a larger scale. A large gold dredge uses a mechanical method to excavate material (sand, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shotover River
The Shotover River () is located in the Otago region of the South Island of New Zealand. The name correctly suggests that this long river is fast flowing, with numerous rapids. The river flows generally south from the Southern Alps on its journey running through the Skippers Canyon, draining the area between the Richardson Mountains and the Harris Mountains, before flowing into the Kawarau River east of Queenstown. The Edith Cavell bridge crosses the river at Arthurs Point. Tourist operations Gold mining featured in its early history and it was one of the richest gold-bearing rivers in the world. Beginning in 1862 when gold was first discovered on the river at Arthurs Point, the river has been panned, cradled, sluiced and dredged. Today small-time gold seekers still work the river and two of its tributaries, Moke and Moonlight Creeks, for gold. It is now a popular river for tourism. The river is used for commercial white water rafting trips and jet boating rides which o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YouTube
YouTube is an American social media and online video sharing platform owned by Google. YouTube was founded on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim who were three former employees of PayPal. Headquartered in San Bruno, California, it is the second-most-visited website in the world, after Google Search. In January 2024, YouTube had more than 2.7billion monthly active users, who collectively watched more than one billion hours of videos every day. , videos were being uploaded to the platform at a rate of more than 500 hours of content per minute, and , there were approximately 14.8billion videos in total. On November 13, 2006, YouTube was purchased by Google for $1.65 billion (equivalent to $ billion in ). Google expanded YouTube's business model of generating revenue from advertisements alone, to offering paid content such as movies and exclusive content produced by and for YouTube. It also offers YouTube Premium, a paid subs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discovery Channel
Discovery Channel, known as The Discovery Channel from 1985 to 1995, and often referred to as simply Discovery, is an American cable channel that is best known for its ongoing reality television shows and promotion of pseudoscience. It initially provided documentary television programming focused primarily on popular science, technology, and history, but by the 2010s had become increasingly dominated by programs that were reality television shows, promoted conspiracy theories, or advocated junk science. It is owned by Warner Bros. Discovery, a publicly traded company run by CEO David Zaslav. , Discovery Channel was the third most widely distributed subscription channel in the United States, behind now-sibling channel TBS and the Weather Channel; it is available in 409 million households worldwide, through its U.S. flagship channel and its various owned or licensed television channels internationally. , Discovery Channel is available to approximately 71,000,000 pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Rush (TV Series)
''Gold Rush'' (titled ''Gold Rush: Alaska'' in the first season) is a reality television series that airs on Discovery and its affiliates worldwide. The series follows the placer gold mining efforts of various family-run mining companies, initially in Alaska, but then mostly in the Klondike region of Dawson City, Yukon, Canada. Prior seasons also included mining efforts in Guyana, Oregon, and Colorado. the show has aired 15 seasons. Overview Season 1 The show was named ''Gold Rush: Alaska'' in its first season, and featured six men from Sandy, Oregon, a small town southeast of Portland. Due to the economic downturn, the men had lost their jobs; they decided on an all-stakes gamble: travel to Porcupine, Alaska, to prospect for gold. Most of them had little or no previous placer gold mining experience and had to learn on the job. The season was marred by equipment malfunctions and crew inexperience. The crew's initial plan to strip mine a site near Porcupine Creek is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maldon, Victoria
Maldon is a town in Victoria, Australia, in the Shire of Mount Alexander local government area. It has been designated "Australia's first notable town" and is notable for its 19th-century appearance, maintained since gold-rush days. At the 2021 census, Maldon had a population of 1,665. History Major Thomas Mitchell's Victorian expedition of 1836 first explored the Maldon district. It was occupied soon afterwards by pastoralists, and two sheep runs were established in the area, at the foot of nearby Mount Tarrengower. In December 1853, gold was discovered at Cairn Curran (the name given to one of the sheep runs), and Maldon became a part of the Victorian Gold Rush. The goldfield which was named "Tarrangower Fields" after Mount Tarrangower (now usually referred to as Tarrengower), immediately attracted people eager to make their fortunes at the diggings. One month after gold was first discovered, the Chief Commissioner for Goldfields reported 3000 miners had arrived at t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sydney Morning Herald
''The Sydney Morning Herald'' (''SMH'') is a daily tabloid newspaper published in Sydney, Australia, and owned by Nine Entertainment. Founded in 1831 as the ''Sydney Herald'', the ''Herald'' is the oldest continuously published newspaper in Australia and claims to be the most widely read masthead in the country. It is considered a newspaper of record for Australia. The newspaper is published in compact print form from Monday to Saturday as ''The Sydney Morning Herald'' and on Sunday as its sister newspaper, '' The Sun-Herald'' and digitally as an online site and app, seven days a week. The print edition of ''The Sydney Morning Herald'' is available for purchase from many retail outlets throughout the Sydney metropolitan area, most parts of regional New South Wales, the Australian Capital Territory and South East Queensland. Overview ''The Sydney Morning Herald'' publishes a variety of supplements, including the magazines ''Good Weekend'' (included in the Saturday editi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassiterite
Cassiterite is a tin oxide mineral, SnO2. It is generally opaque, but it is translucent in thin crystals. Its luster and multiple crystal faces produce a desirable gem. Cassiterite was the chief tin ore throughout ancient history and remains the most important source of tin today. Occurrence Most sources of cassiterite today are found in alluvial or placer deposits containing the weathering-resistant grains. The best sources of primary cassiterite are found in the tin mines of Bolivia, where it is found in crystallised hydrothermal veins. Rwanda has a nascent cassiterite mining industry. Fighting over cassiterite deposits (particularly in Walikale) is a major cause of the conflict waged in eastern parts of the Democratic Republic of the Congo. This has led to cassiterite being considered a conflict mineral. Cassiterite is a widespread minor constituent of igneous rocks. The Bolivian veins and the 4500 year old workings of Cornwall and Devon, England, are concentrate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining Industry
Mining is the extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, and final reclamation or restoration of the land after the mine is closed. Mining materials are often obtained from ore bodies, lodes, veins, seams, reefs, or placer deposits. The exploit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Garland (Australian Politician)
Charles Launcelot Garland (1854 – 7 January 1930) was a New Zealand-born Australian politician and mining entrepreneur. He was the founder of the town of Leadville, New South Wales. He was born at Auckland to sea captain William Riley Garland and Nancy Turner. He was a miner from an early age, and migrated to New South Wales in 1879. Around 1882 he married Mary Newland, with whom he had a son. Garland died in Sydney in 1930. Business career From 1882 he was an assurance agent, and was also successful mining at Leadville, on the Palmer River in Far North Queensland, and on the Macquarie River. Garland is credited with being the first to introduce gold dredging—a technique used extensively in his native New Zealand—to New South Wales, He launched the first gold dredge on the Macquarie in 1899. By 1905, there were 42 dredges working in New South Wales, resulting in a significant revival of gold production. Political career In 1885 he was elected to the New South ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eldorado Dredge Panorama
El Dorado () is a mythical city of gold supposedly located somewhere in South America. The king of this city was said to be so rich that he would cover himself from head to foot in gold dust – either daily or on certain ceremonial occasions – before diving into a sacred lake to wash it off. The legend was first recorded in the 16th century by Spanish colonization of the Americas, Spanish colonists in the Americas; they referred to the king as El Dorado, 'The Golden One', a name which eventually came to be applied to the city itself. It is unknown whether this story had any basis in fact, but it may have been inspired by the culture of the Muisca, an indigenous people inhabiting a plateau in the Andes, Andean mountains in modern-day Colombia. The Muisca were skilled goldsmiths; they made frequent use of golden objects in their religious ceremonies, and also manufactured ornaments and jewellery for trade with the neighbouring tribes. Early European settlers, searching for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
