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Gold Mining In Alaska
Gold mining in Alaska, a state of the United States, has been a major industry and impetus for exploration and settlement since a few years after the United States acquired the territory in 1867 from the Russian Empire. Russian explorers discovered placer gold in the Kenai River in 1848, but no gold was produced. Gold mining started in 1870 from placers southeast of Juneau, Alaska. Gold occurs and has been mined throughout Alaska, except in the vast swamps of the Yukon Flats, and along the Alaska North Slope, North Slope between the Brooks Range and the Beaufort Sea. Areas near Fairbanks and Juneau, and Nome, Alaska, Nome have produced most of Alaska's historical output and provide all current gold production . Nearly all of the large and many of the small placer-gold mines currently operating in the US are in Alaska. Seven modern large-scale Underground mining (hard rock), hard-rock mines operated in Alaska ; five were gold-producing mines. There are also small-scale hard-rock g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States asserts sovereignty over five Territories of the United States, major island territories and United States Minor Outlying Islands, various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's List of countries and dependencies by area, third-largest land area and List of countries and dependencies by population, third-largest population, exceeding 340 million. Its three Metropolitan statistical areas by population, largest metropolitan areas are New York metropolitan area, New York, Greater Los Angeles, Los Angel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greens Creek Mine
The Admiralty mining district is a mining area in the U.S. state of Alaska which consists of Admiralty Island. Silver and base metals are mined, with gold recovered as a by-product. The Alaska Empire underground lode mine recovered gold from quartz veins in metamorphic rocks. Discovered and staked in the 1920s, production of about 20,000 tons of 0.25 ounce-per-ton gold ore occurred in the mid-1930s. No significant placer mining was done on Admiralty Island. About 500,000 ounces of gold, almost all from Greens Creek, have been recovered from the Admiralty district. Greens Creek mine (operating) The Greens Creek mine in the Admiralty mining district is the 5th largest silver producer in the world; gold is a byproduct. The mine is an underground operation, with surface disposal of tailings onto two sites. The mine and mill site lie on 18 patented claims; the mine has mineral rights to 24 square miles (15,360 acres) of surrounding land owned by the Federal government. It is located a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juneau
Juneau ( ; ), officially the City and Borough of Juneau, is the capital of the U.S. state of Alaska, located along the Gastineau Channel and the Alaskan panhandle. Juneau was named the capital of Alaska in 1906, when the government of what was then the District of Alaska was moved from Sitka as dictated by the U.S. Congress in 1900. On July 1, 1970, the City of Juneau merged with the City of Douglas and the surrounding Greater Juneau Borough to form the current consolidated city-borough, which ranks as the second- largest municipality in the United States by area and is larger than both Rhode Island and Delaware. Downtown Juneau is nestled at the base of Mount Juneau and it is across the channel from Douglas Island. As of the 2020 census, the City and Borough had a population of 32,255, making it the third-most populous city in Alaska after Anchorage and Fairbanks, but the sixth-least populous U.S. state capital. Juneau experiences a daily influx of 21,000 people ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Admiralty Mining District
The Admiralty mining district is a mining area in the U.S. state of Alaska which consists of Admiralty Island. Silver and base metals are mined, with gold recovered as a by-product. The Alaska Empire underground lode mine recovered gold from quartz veins in metamorphic rocks. Discovered and staked in the 1920s, production of about 20,000 tons of 0.25 ounce-per-ton gold ore occurred in the mid-1930s. No significant placer mining was done on Admiralty Island. About 500,000 ounces of gold, almost all from Greens Creek, have been recovered from the Admiralty district. Greens Creek mine (operating) The Greens Creek mine in the Admiralty mining district is the 5th largest silver producer in the world; gold is a byproduct. The mine is an underground operation, with surface disposal of tailings onto two sites. The mine and mill site lie on 18 patented claims; the mine has mineral rights to 24 square miles (15,360 acres) of surrounding land owned by the Federal government. It is located a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hecla Mining
Hecla Mining is a gold, silver, and other precious metals mining company based in Coeur d'Alene, Idaho, Coeur d'Alene, Idaho. Founded in 1891, it is the second-largest mining company that produces silver in the country. This area is known as the Silver Valley (Idaho). In 1983, this entire area was designated as a Superfund site by the United States Environmental Protection Agency, Environmental Protection Agency, because of land, water, and air contamination resulting from a century of mostly unregulated silver and gold mining. History James Toner filed the Hecla claim on 5 May 1885. He passed on the claim to A.P. Horton, who sold it to George W. Hardesty and Simon Healey. Patrick (Patsy) Clark owned the claim outright by 1 July 1891. On 29 Sept. 1891, Clark formed the Hecla Mining Company with Albert Gross and Charles Kipp. On 14 Oct. 1891, the company was incorporated in Idaho by Clark, Charles Kipp, John A. Finch, Amasa B. (Mace) Campbell, John Dorsey, Healey and Hardest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diorite
Diorite ( ) is an intrusive rock, intrusive igneous rock formed by the slow cooling underground of magma (molten rock) that has a moderate content of silica and a relatively low content of alkali metals. It is Intermediate composition, intermediate in composition between low-silica (mafic) gabbro and high-silica (felsic) granite. Diorite is found in mountain-building belts (''orogens'') on the margins of continents. It has the same composition as the fine-grained volcanic rock, andesite, which is also common in orogens. Diorite has been used since prehistoric times as decorative stone. It was used by the Akkadian Empire of Sargon of Akkad for funerary sculptures, and by many later civilizations for sculptures and building stone. Description Diorite is an intrusive rock, intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar (typically andesine), biotite, hornblende, and sometimes pyroxene. The chemical composition of diorite is Intermedia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ninth and longest geological period of the entire Phanerozoic. The name is derived from the Latin , 'chalk', which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation . The Cretaceous was a period with a relatively warm climate, resulting in high Sea level#Local and eustatic, eustatic sea levels that created numerous shallow Inland sea (geology), inland seas. These oceans and seas were populated with now-extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was largely ice-free, although there is some evidence of brief periods of glaciation during the cooler first half, and forests extended to the poles. Many of the dominant taxonomic gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrite
The mineral pyrite ( ), or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula Fe S2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral. Pyrite's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of ''fool's gold''. The color has also led to the nicknames ''brass'', ''brazzle'', and ''brazil'', primarily used to refer to pyrite found in coal. The name ''pyrite'' is derived from the Greek (), 'stone or mineral which strikes fire', in turn from (), 'fire'. In ancient Roman times, this name was applied to several types of stone that would create sparks when struck against steel; Pliny the Elder described one of them as being brassy, almost certainly a reference to what is now called pyrite. By Georgius Agricola's time, , the term had become a generic term for all of the sulfide minerals. Pyrite is usually found associated with other sulfides or oxides in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coeur Mining
Coeur Mining, Inc. is a precious metals mining company listed on the New York Stock exchange. It operates five mines located in North America. Coeur employs 2,200 people and in 2012 it was the world's 9th largest silver producer. In 2013 the company changed its name to Coeur Mining, Inc. from Coeur d'Alene Mines and moved its head office to Chicago, Illinois from Coeur d'Alene, Idaho. History Coeur Mining was formed in 1928 to mine silver in the Coeur d'Alene region of Idaho. The company was an important mine operator in northern Idaho for many decades and among others operated the Coeur d'Alene Silver Mine, the Coeur Mine and the Galena Mine. The firm sold its remaining assets in the region in July, 2006. In the past 30 years, Coeur has acquired and operated mines in the US, Mexico, Bolivia, Chile, Argentina and New Zealand and has had operating interests in mines in Australia. It also held investments in various exploration and mining companies. For a short while, it manufactu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delta Junction, Alaska
Delta Junction (; ) is a List of cities in Alaska, city in Southeast Fairbanks Census Area, Alaska, United States. As of the 2020 United States census, 2020 census, its population was 918. The city is located a short distance south of the confluence of the Delta River with the Tanana River, which is at Big Delta, Alaska, Big Delta. It is about south of Fairbanks, Alaska, Fairbanks. Native inhabitants are Tanana Athabaskans. History For at least 10,000 years, Athabascan indigenous peoples have inhabited portions of the interior of Alaska. Early inhabitants survived by hunting and fishing. The early history of non-native settlement in the area occurred at the river crossing at Big Delta and is found at the entry, Big Delta, Alaska. In 1904, the location first served as a telegraph station. In 1928, a herd of 23 Plains Bison, bison were brought from the National Bison Range in Montana to an area south of Big Delta to provide an additional game species for hunters. Buffalo C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Star Resources
Northern Star Resources is an Australian gold mining company with operations in Western Australia, Northern Territory and Alaska. History Northern Star Resources (NSR) was founded in December 2003 to search for and develop ore deposits in the East Kimberley region of Western Australia. It was listed on the Australian Securities Exchange in December 2003. In July 2010, it became a gold miner with the purchase of Paulsens Gold Mine. In October 2020, a merger between NSR and Saracen Metal Holdings, its joint venture partner in the Super Pit gold mine, was proposed. The merger was completed in February 2021 when Saracen was de-listed from the Australian Securities Exchange. Operations Current * Carosue Dam Gold Mine (4 underground mines: Karari, Whirling Dervish, Porphyry 45 km north and Deep South mine 70 km to the North) *Thunderbox Gold Mine (1 underground mine: Thunderground & 2 Open Pit Mines) * Jubilee Gold Mine * Jundee Gold Mine * Kanowna Belle Gold Mine * Paulsens Gold M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kinross Gold Corporation
Kinross Gold Corporation is a Canadian-based gold and silver mining company founded in 1993 and headquartered in Toronto, Ontario, Canada. Kinross currently operates six active gold mines, and was ranked fifth of the "10 Top Gold-mining Companies" of 2019 by ''InvestingNews''. The company's mines are located in Brazil, Mauritania, and the United States. It trades under the KGC ticker in the New York Stock Exchange, and under K in the Toronto Stock Exchange. Operations Kinross Gold operates mines in North and South America, and West Africa. In 2022, 58% of Kinross gold production was expected to come from the Americas. Fort Knox This property includes a mill, tailings storage, heap leach facility, the Gil project, and the True North open pit mine, which is closed and under monitoring. Expected to run out of ore in 2021, the mine's life has been extended to 2030 following a $100 million expansion investment announced in 2018, increasing life-of-mine production by about 1.5 milli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
