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WIPP miners use a remote-controlled continuous mining machine to make space in the bedded salt for planned Salt Disposal Investigations.
Mining crews recently began tunneling areas in the north end of the 2,150-foot-deep Waste Isolation Pilot Plant (WIPP) repository to support a new round of salt studies. Known as the Salt Disposal Investigations (SDI), the studies are designed to test the geologic response of salt to elevated temperatures.
The historic City of Ouray is a Home Rule Municipality that is the county seat and the most populous city of Ouray County, Colorado, United States. The city population was 813 at the U.S. Census 2000 and 1,000 as of the U.S. Census 2010.
The entire present-day economy of Ouray is based on tourism. Ouray bills itself as the "Switzerland of America" because of its setting at the narrow head of a valley, enclosed on three and a half sides by steep mountains.
Originally established by miners chasing silver and gold in the surrounding mountains, the town at one time boasted more horses and mules than people. Prospectors arrived in the area in 1875. At the height of the mining, Ouray had more than 30 active mines. The town—after changing its name and that of the county it was in several times—was incorporated on October 2, 1876, named after Chief Ouray of the Utes, a Native American tribe. By 1877 Ouray had grown to over 1,000 in population and was named county seat of the newly formed Ouray County on March 8, 1877.
The entirety of Main Street is registered as a National Historic District with most of the buildings dating back to the late nineteenth century. The Beaumont Hotel and the Ouray City Hall and Walsh Library are listed on the National Register of Historic Places individually, while the Ouray County Courthouse, St. Elmo Hotel, St. Joseph's Miners' Hospital (currently housing the Ouray County Historical Society and Museum), Western Hotel, and Wright's Opera House are included in the historic district.
Ouray is located in the San Juan Mountains of southwestern Colorado. It is about 40 miles (64 km) south of Montrose. It is only 10 miles (16 km) northeast of Telluride, but due to the severity of the landscape, the drive is about 50 miles (80 km). Ouray is connected to Silverton and then Durango to the south by Red Mountain Pass which crests at just over 11,000 feet (3,400 m). The drive along the Uncompahgre River and over the pass is nicknamed the Million Dollar Highway, although the exact origin of the name is disputed. Yankee Boy Basin, located a few miles from town, boasts a beautiful spectacle called Twin Falls.
en.wikipedia.org/wiki/Ouray,_Colorado
en.wikipedia.org/wiki/Wikipedia:Text_of_Creative_Commons_...
Big Pit: National Coal Museum is an industrial heritage museum in Blaenavon, Torfaen, South Wales. A working coal mine from 1860 to 1980, it was opened to visitors in 1980. Photo taken with Canon 550D in December 2012.
he uranium mine at Kowary was important for the producion of the first Russian atomic bombs. In the years between 1945 and 1947 this was the most important uranium mine of the Soviet Union. Obviously the mining activities were top secret at that time. More than 20 tunnels were dug during the times of the polish-soviet R1 Plant.
Although the urianium mining was top secret for many decades, the mine became a little more public after a radon therapy tunnel was opened. Named Sztolnie Kowary (Kowarian Tunnel) it was the core of the Cieplice Health Resort. It was one of only three radon therapy centres in Europe at this time.
Radon is a natural gas, belonging to the Edelgas, and it generally does not react very easy. Natural radon has a very low radioactivity and is thus not really healthy. As it is not incorporated there are no dangers of contamination, but on the other hand the radioactivity is the only scientifically accepted effect on the body. Obviously the healing effects of radon are very dubious. However, postulated dangers of radon are exaggerated and there is definitely no danger to visitors or patients.
A real danger exists nearby. The mined ore was milled and leached in an uranium mill to extract the uranium. The tailings were pumped as sludges into a sedimentation pond, where they are until today. The seepage water is a continuous hazard to ground and surface waters.
The mine itself is today converted into a tourist attraction. The long tour through one of the adits is a sort of multimedia museum with diaramas of the local mining history. Since 700 years iron ore was mined in the area. At this time the uranium was not know and not used.
Local Accession Number: 06_11_002160
Title: Dumping culm, slate pile, anthracite coal mining, Scranton, Pa.
Genre: Stereographs; Photographic prints
Created/Published: Meadville, Pa. ; New York, N.Y. ; Portland, Oregon ; London, Eng. ; Sydney, Aus. : Keystone View Company
Copyright date: 1905
Physical description: 1 photographic print on a curved stereo card : stereograph ; 9 x 18 cm.
General notes: Image caption: Dumping Culm, Slate Pile, Anthracite Coal Mining, Scranton, Pa., U.S.A.; No. 7069; Title from printed caption on verso
Subjects: Coal; Coal mining
Collection: Stereographs
Location: Boston Public Library, Print Department
Shelf locator: Pennsylvania
Rights: No known copyright restrictions.
Team members from West Virginia University prepare their mining robot for a test run in a giant sandbox before their scheduled mining run in the arena during NASA's 8th Annual Robotic Mining Competition at the Kennedy Space Center Visitor Complex in Florida. More than 40 student teams from colleges and universities around the U.S. are using their uniquely-designed mining robots to dig in a supersized sandbox filled with BP-1, or simulated Martian soil, and participate in other competition requirements. The Robotic Mining Competition is a NASA Human Exploration and Operations Mission Directorate project designed to encourage students in science, technology, engineering and math, or STEM fields. The project provides a competitive environment to foster innovative ideas and solutions that could be used on NASA's Journey to Mars. Photo credit: NASA/Kim Shiflett
When you bring up various sizes of rock from mining then you but them to use with an opening that face's the mountain side. Mining in Nevadaville was at it's peek between 1860 and 1870 and the structures are from that period.
A tiny but colorful mining bee, Perdita sp, on a sunflower in my Colorado Springs, Colorado neighborhood, August 1, 2019.
Wills's Cigarettes "Mining" (series of 50 issued in 1916
#20 Using a compressed air drill, South African gold mine
Small crane made for the technic challenge. Couldn't participate tho due to a lighting strike... (didn't have internet for a couple of days)
Exact Mining Services Kenworth T604 Double Road-Train.
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© Tom O'Connor 2009, All Rights Reserved.
Manheim is a district of Kerpen in the Rhine-Erft district in North Rhine-Westphalia. Manheim is located in the mining zone of the Hambach open-cast mine and must give way to it by 2022 according to RWE's plans.
Manheim ist ein Stadtteil von Kerpen im Rhein-Erft-Kreis in Nordrhein-Westfalen. Manheim liegt in der Abbauzone des Tagebaus Hambach und muss diesem nach den Plänen von RWE bis zum Jahr 2022 weichen.
Downcast shaft at Daw Mill colliery in Warwickshire. This is the largest colliery in the UK, mining a five-metre thick section of the Warwickshire Thick seam some 750 metres below the ground. The shafts here are 558 metres and 556 metres deep. In 1982, a drift was completed and all coal is now brought out this way.
Morning light streams into Sparwood from the Crowsnest Pass, illuminating the Sparwood Info Centre beside Highway 3, the Crowsnest route through the southern Rockies. Over 40,000 visitors a year stop for an up-close encounter with the biggest dump truck ever built. It is on display next to Highway 3 beside Sparwood's new visitor centre. Murals and historical mining artifacts tell the story of the development of the community and add character to the downtown core.
The mining gallery
“Paron”, 450 m long, was
constructed by the French Mining
Company of Lavrion at the
beginning of the 20th century and
was active until 1973. It was the
main entrance of the workers
into the wider mining section
of Kamariza, the largest mining
centre of Lavrion.
Site of gold mining in Tamiougou just south of Kongoussi. Paul Sawadogo, 27 years old, prospector says, "I started panning for gold at 17. The gallery is 10m deep. Each prospector spends 12 hours underground and brings up several kilos of ore will be crushed and then washed. The last accident happened 6 years ago." Burkina Faso. Africa.
Photo by Ollivier Girard for Center for International Forestry Research (CIFOR).
If you use one of our photos, please credit it accordingly and let us know. You can reach us through our Flickr account or at: cifor-mediainfo@cgiar.org and m.edliadi@cgiar.org
President Cyril Ramaphosa at the 2022 Investing in Africa Mining Indaba at the Cape Town International Convention Centre under the theme “Evolution of African Mining”.(Photo: GCIS)
Photochrom print by the Detroit Photographic Co., copyrighted 1898.
From the Photochrom Prints Collection at the Library of Congress
More photochroms from Colorado & the United States | More photochrom prints
[PD] This picture is in the public domain
Man working in the mine. © ILO/Joseph Fortin
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 IGO License. To view a copy of this license, visit creativecommons.org/licenses/by-nc-nd/3.0/igo/deed.en_US
These are the doors to the water tunnel from the Oak Hill Colliery. Under this mountain is said to be and indoor lake and here is where the overflow escapes from. Duncott, PA. Photographed 12-29-11.
Blue = azurite (Cu3(CO3)2(OH)2, copper hydroxy-carbonate)
Green = malachite (Cu2CO3(OH)2, copper hydroxy-carbonate)
Black = tenorite (CuO, copper oxide)
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5600 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
The carbonate minerals all contain one or more carbonate (CO3-2) anions.
Malachite and azurite are attractive, richly colored copper hydroxy-carbonate minerals. Malachite has a nice green color - its formula is Cu2CO3(OH)2. Azurite has a dark, rich blue color - its formula, Cu3(CO3)2(OH)2, is very close to malachite. The blue color of azurite is from Cu+, while the green color of malachite is from Cu+2. Azurite & malachite almost invariably occur together, and are telling indicators of copper in the field, even in very small quantities. Blue azurite tends to crystallize first, and can convert to green malachite. Some azurite-malachite specimens are solid enough to be cut and polished as semi-precious stone.
The sample seen here is on an ore pile at the Continental Mine (= Continental Pit) in Butte, Montana. The town is known as the “Richest Hill on Earth” and "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 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 consists of 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.
When I visited 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.
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Photo gallery of malachite:
www.mindat.org/gallery.php?min=2550
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Photo gallery of azurite: