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Cryptocurrency mining is a growing trend. Pictured is an image of a Sapphire Crypto Mining Rig.
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This tailings pond is next to the Continental Mine in Butte, Montana (= “Richest Hill on Earth”; = "The Mining City"). The Butte Mining District has produced gold, silver, copper, molybdenum, manganese, and other metals.
The area's bedrock consists of the Butte Quartz Monzonite (a.k.a. Butte Pluton), which is part of the Boulder Batholith. The Butte Quartz Monzonite ("BQM") formed 76.3 million years ago, during the mid-Campanian Stage in the Late Cretaceous. BQM rocks have been intruded and altered by hydrothermal veins containing valuable metallic minerals - principally sulfides. The copper mineralization has been dated to 62-66 million years ago, during the latest Maastrichtian Stage (latest Cretaceous) and Danian Stage (Early Paleocene). In the supergene enrichment zone of the area, the original sulfide mineralogy has been altered.
The Continental Mine was started in 1980 by the Anaconda Copper Mining Company - it is currently owned by Montana Resources. The mine targets a low-grade copper and molybdenum deposit on the eastern side of the Continental Fault, a major Basin & Range normal fault in the Butte area with about 3500 feet of offset. The mine's rocks consist of BQM with disseminated copper sulfides, plus copper- and molybdenum-bearing hydrothermal veins that intrude the BQM. Minerals at the site include chalcopyrite, molybdenite, malachite, azurite, tenorite, and cuprite. The latter four minerals are secondary copper minerals, produced by alteration of the primary copper sulfides.
In 2010, the Continental Mine was making 50,000 to 52,000 tons of ore each day. This mine can operate down to an ore grade of 0.1% copper. Most of the mineralization is disseminated copper, but veins are also present. Two stages of mineralization occurred in the Butte area - a porphyry copper system and a main stage system with large veins. The bottom of the porphyry copper system is ~ less than 12,800 feet below the surface. Veins peter out at 5600 to 5800 feet below the surface. At the Continental Mine, veins are small - they're veinlets less than 6 inches wide.
Mining is done 24 hours a day, 365 to 366 days per year. There's 1 to 2 days of down time at the mill. During those days, mining stops and waste material is moved. The ore:waste ratio is 8:10 (= strip ratio). The alluvial overburden consists of 7 paleosol horizons, including some caliches - the lime content results in an average pH of 8. The caliche material can be used to treat acidic materials.
This mine has 14 shovels and 15 trucks. A large Bucyrus shovel can load a 240-ton truck in three passes. The mine's benches are forty feet tall. Blasting is done with ANFO - ammonium nitrate and fuel oil. 0.65 pounds of explosives are used per ton of rock. The mine uses ~45 megawatts of power per day, which is about the same as the city of Butte itself.
Continental Mine ores are crushed in two stages. The crushed ores are then sent to the mill, where they are ground down to the fineness of talcum powder. Flotation and lime are used in processing. Sulfides are collected. 1% of the mined material goes to the concentrator. 99% of mined material becomes tailings. The tailings powder is wet (33% solid and the rest is water) and piped uphill to a pond. The tailings pond water has a pH of 10. Water from the pond is recycled to make tailings slurry. 27 million gallons a day enters the pond. An earthen dam around the pond is designed to withstand a powerful earthquake.
Copper and molybdenum concentrates produced at the Continental Mine are not smelted locally - they are not even smelted in America. Concentrates are sold around the world, where material is smelted and the metals are produced. America shipping rocks overseas and buying back the finished product is the behavior of an underdeveloped country - America is not interested in smelting anymore - a sad reality.
It's a very useful machine, because you can use it for peaceful mining, or agressive attack. That guy always takes a weapon along.
I found this little mining bee (Andrena sp. - Andrena praecox? or Andrena bicolor?) in my backyard yesterday.
© 2014 Monique van Someren * all rights reserved * please do not use without permission
Ironwood, Michigan, September 2016; three mine vehicles alongside the former train depot. The vehicles comprise a shovel, a hopper car and a powered vehicle.
Winfield Scott Stratton, a carpenter struck gold at the Independence Mine above Victor, Colorado in 1891, bought the American Eagles in 1895. Thje American Eagles Group consisted of three shafts and reached its maximum depth on 1902. At that time the deepest shaft was 1,540 ft. and was the highest mine in the district at 10.570 ft. LKittle is known bout the actual production since Stratton's mins were all privately held, following his death i 1902 the Stratton Estate held it. Reopened in 1924 by the Stratton Leasing Company, in 1936 a rich vein of ore wa found between the 19th and 21st levels. It was closed 1940. "The mine did reopen but I don't have that date plus is in operation now.
Tongo, Sierra Leone — In the diamond field-rich district of Kenema in the southeast of the country, a handful of twenty-something men with soiled and shredded rags for t-shirts bend over at the waist, and toil knee-deep in a caramel pool of mud. Lined along the waters' edge, situated an arms-length apart from one another, they splash circular sieves into the water then shake the contents from side to side with a vigorous rhythm in hopes of finding a diamond. This is a small-scale diamond mining operation called alluvial mining. Working in small cadres on mines with crude tools is a popular profession among men here in the Kenema District, but the pay is poor and the rewards seen are seldom or infrequent, at best. The workers only get paid when the diamonds are found. The middlemen who buy the stones from the miners prosper the most. Rebel forces from Liberia and Sierra Leone used diamonds to fund their wars -- gems for guns -- between 1990-2001. This trade led to the reputation of the Blood Diamond. Diamonds now must be certified by the government of Sierra Leone.
Photo by Geoff Bugbee, courtesy of Heifer International
Big Bell (WIKIPEDIA) is a mining ghost town in Western Australia near the town of Cue, established in 1936, and was home to the Big Bell Gold Mine.Mining ceased in 2003 and the plant was dismantled and transported to the Westonia minesite in 2007.
It is a former railway branch terminus in Western Australia's Murchison Region. The first train arrived in Big Bell on 6 January 1937, however the line was not officially opened until 12 August that year. Services ceased from September 1944, but were revived the following year when the war in Europe was winding down and the gold mine reopened. The line finally closed on 31 December 1955. Not much of the buildings remain, but the roads stay visible in their original position as dirt tracks. It is very visible from an aerial view.
The Big Bell hotel reputedly had the longest bar in Australia. In 1902 Herbert Hoover, who would later become the 31st President of the United States, was a company representative at the Big Bell open cut gold mine.
'Conveyors', by W.G. Hudson, 2nd edition. Published in 1950 by Chapman & Hall Ltd., London. Red hardback book with silver print on spine.
West Lothian Museums. http://www.westlothian.gov.uk/tourism/museumsgalleries/ums/information
If you would like more information about this object, please contact: museums@westlothian.gov.uk, quoting WLDCM1995.096.023.
A view of Iron Ore mining in Kudremukh National Park of Karnataka state, in south-western India's Western Ghats.
You can see the hill tops exposed to elements, devoid of vegetation and grass cover. Below flows the Bhadra River.
The mining activity in the Park has STOPPED, due to the help sought by Karnataka's wildlife activists with India's judicial system.
GEAR: Nikon FM10 SLR, Nikkor 35 - 70mm lens, 35 mm Slide film
SCANNER: Scanned CanoScan U1250 flat bed scanner.
ABOUT WESTERN GHATS:
Western Ghats, or Sahayadris as they are known in many Indian languages, are a 1600 km long chain of mountains that run parallel to the Arabian Sea in peninsular India. They give birth to almost all the major rivers of south India. These rivers provide drinking and irrigation water for more than 250 million people. The 'Ghats' are one of earth's designated 25 Bio-diversity 'Hot Spots'. They are home to some of earth's rarest flora and fauna and most spectacular landscapes. To know more, please visit www.westernghats.info
Early spring and the Mining bees are about. Sound is a Blackbird singing. Filmed using the Sony RX10iii camera fitted with a +2 dioptre lens for close-up.
I found this little male bee in our Staffordshire garden yesterday. I assume it's an Andrena mining bee. It's not a species I remember seeing before.
It's a small bee; not much larger than a female Andrena bicolor. He was interested in a hole in our loose, sandy soil; perhaps waiting for a female to emerge. I'll have to keep an eye on the location!
Coal Sample: the coal was attached to a "rib" which is the solid coal on the side of any underground passage such as the side of a pillar or the wall of an entry.
West Lothian Museums. http://www.westlothian.gov.uk/tourism/museumsgalleries/ums/information
Copyright: West Lothian Council Museums Service.
If you would like more information about this object, please contact: museums@westlothian.gov.uk, quoting WLCMS2011.004.
The Candelaria Mine lies southwest of Copiapo in the arid Atacama region of Chile.
Photo: Kaworu Koneru
Long wall coal mining under the Waratah Rivulet, that feeds Sydney's water supply, has cracked the river. Peabody coal company is trying to glue the cracks together again with an epoxy substance.
Photos by Max Phillips // Jeremy Buckingham's office: www.flickr.com/photos/62459458@N08/sets/72157628426391761/
Black hardback book titled: 'A Mining Engineer's Survey Manual', by J.E. Metcalfe, Published for Mine & Quarry Engineering by Electrical Press, 1951. 341 pages.
West Lothian Museums. http://www.westlothian.gov.uk/tourism/museumsgalleries/ums/information
If you would like more information about this object, please contact: museums@westlothian.gov.uk, quoting WLDCM1995.096.010.
Verge mining is important to the way the Verge cryptocurrency works. GIVE ATTRIBUTION TO: BeatingBetting.co.uk
The World Museum of Mining was founded in 1963 when the close of Butte's mining heyday was less than two decades away. In the end Butte Montana experienced a century of hardrock mining and earned the reputation of being home to one of the world's most productive copper mines of all time. The Museum exists to preserve the enduring history of Butte and the legacy of its rich mining and cultural heritage.
The World Museum of Mining is one of the few museums in the world located on as actual mine yard- the Orphan Girl Mine. With fifty exhibit buildings, countless artifacts, and sixty-six primary exhibits in the mine yard.
More work from a busy start to the year, another Genius & Me infographic feature, Enabling Mining Operations, for one of the largest Engineering consultancies in the world. Can't tell you how much we enjoy working up this type of concept. Next please! ...
See more like this on... www.paulweston.info
and
www.geniusandme.com coming soon
This is what goes under the only bridge on the island. The phosphate is mined on the interior (Top Side) and is brought down by train to this area (there are many large rusting buildings behind these structures pictured above) where the material is crushed, screened, roasted and stored. A calcination plant removes all carbon and most cadmium (a polutant which also has made the fish in the Buada lagoon uneatable) from the phosphate.