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The trucks aren't really that small from the cab ;)
I know I haven't been posting many mining pictures lately- even though I pretty much have the run of the minesite I have been so crazy busy it's not even funny. Occasionally they stick me on a shovel for a shift or four though.
The town of Delamar is well-described in Wikipedia, so I won't go into detail here except to note that the mines in the area were most active from 1895 to 1900 (per Wikipedia). The main things to note is that it was a fairly large town, and it was known for being very hazardous for silicosis, a deadly lung disease, due to the dust generated from gold mining. As is evident from this picture, there remain large piles of tailings (the white portion) which can be hazardous to health due to dust. To get a sense of the size of tailings, look at the satellite view, they're very visible.
(Best viewed as part of Lincoln county set)
Ironically, it was lead mining that killed Picher, one of America's newest ghost towns.
The Picher area became the most productive lead-zinc mining field in the Tri-State district producing over $20 billion worth of ore between 1917 and 1947. More than fifty percent of the lead and zinc metal used during World War I were produced by the Picher district. At its peak over 14,000 miners worked the mines and another 4,000 worked in mining services. Many of these workers commuted by an extensive trolley system from as far away as Joplin and Carthage, Missouri. Mining ceased in 1967 and water pumping from the mines ceased. The contaminated water from some 14,000 abandoned mine shafts, 70 million tons of mine tailings, and 36 million tons of mill sand and sludge remained as a huge environmental cleanup problem.The area became part of the Tar Creek Superfund site.
On April 24, 2006, Reuters reported that Picher had been scheduled to be closed and all residents removed. Due in large part to the removal of large amounts of subsurface material during mining operations, many of the city's structures have been deemed in imminent danger of caving in
Mining Monument
The Landings (Duke St)
St Helens, Merseyside
artuk.org/discover/artworks/st-helens-mining-monument-314668
© 2024 Keith Jones. All Rights Reserved
The prevention of a tailings dam disasters is an ambitious, but challenging goal. A goal made more difficult by the cyclical, competitive and international nature of the mining industry. Although ICOLD (2001) provided recommendations for change, which have, in many jurisdictions, improved tailings management, the industry has not yet achieved a zero-failure rate.
The approach to tailings storage-facility design, construction and management must place safety as the number one priority. Failure to implement change, coupled with the reality of declining ore grades and consequent increasing waste volumes, will inevitably lead to more catastrophic failures with more deaths, human suffering and environmental destruction.
For any form of publication, please include the link to this page:
This photo has been graciously provided to be used in the GRID-Arendal resources library by: Kristina Thygesen
MINING CAMP RESTAURANT
Prospector's Dinners Served
Family Style 'All You Can Eat'"
Apache Junction, AZ
Neston's coal mining history is being celebrated with the launch of the Neston Colliery Audio Trail. The new audio guide consists of 15 short mp3 tracks that can be downloaded from www.neston-audio-trails.co.uk.
Pictured: Councillor Kay Loch and Anthony Annakin-Smith at Interpretation Panel.
Read more about this press release: www.cheshirewestandchester.gov.uk/news_and_events/press_r...
Old decaying building that is part of the old Lost Burro Mine in Death Valley. It sits up on a hill above Hidden Valley overlooking the rest of the mine workings.
A delegation of 21 British companies from the Construction Equipment Association travelled to Antofagasta to exhibit their products and services at Exponor Mining Exhibition held in the northern city Antofagasta between 11 and 15 May 2015.
Local people do not distinguish among mining companies on the basis of size or type (even though the companies may have different resources, capacities and procedures to respond to local population needs).
A delegation of 21 British companies from the Construction Equipment Association travelled to Antofagasta to exhibit their products and services at Exponor Mining Exhibition held in the northern city Antofagasta between 11 and 15 May 2015.
List of contents and directions. First aid supplies missing when I purchased. The instructions are well worth it though.
A delegation of 21 British companies from the Construction Equipment Association travelled to Antofagasta to exhibit their products and services at Exponor Mining Exhibition held in the northern city Antofagasta between 11 and 15 May 2015.
Rock (sandstone) borehole core sample taken from West Lothian colliery - coal measures.
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 WLDCM1995.056.001.
The Hope Concentrator At Basin
Image taken from p 30 of Western Mining World, Souvenir Edition, Vol. IV, No. 68.
Unique ID: mze-publ1904 p 30
Type: Serial
Contributors: Western Mining World Co.; Chas Heilbronner Co.; Lyman A. Sisley, Ed.
Date Digital: June 2010
Date Original: 1896
Source: Butte Digital Image Project at Montana Memory Project (read the book)
Library: Butte-Silver Bow Public Library in Butte, Montana, USA.
Rights Info: Public Domain. Not in Copyright. Please see Montana Memory project Copyright statement and Conditions of Use (for more information, click here). Some rights reserved. Attribution-Noncommercial-No Derivative Works.
More information about the Montana Memory Project: Montana's Digital Library and Archives.
More information about the Butte-Silver Bow Public Library.
Search the Butte-Silver Bow Public Library Catalog.
We made a few day trips while staying at Methwold Old Vicarage, the first of which was to Grimes Graves, a large neolithic flint mining site. For over 1,000 years (starting around 3,000 BC), neolithic folk mined high quality "floorstone" flint below more than 10 meters of chalk. The mining was done using red deer antlers as the primary digging tool (!), and there is evidence of over 400 shafts. The miners typically dug a straight shaft down the the desired flint level, and then dug very shallow radiating shafts (little more than crawl spaces) along the flint seam, with no bracing or support. When they were done they back-filled the mines, leaving a large, dimpled area of land that looks vaguely like a huge green golf ball.
A few of the mines have been excavated, and you can actually climb down into one and get a real feel for the place and the process. All in all a very cool visit!
In some sense they were strip mining the area for flint. With nothing but people power and antlers, however, they couldn't strip too much or too fast. Take that same idea and put the muscle of modern technology behind it, though, and we can rip the top off a mountain.
'The Timbering of Metalliferous Mines', by J.F. Downey, 1928, Charles Griffin & Co., London. Red hardback book with gilt detail and title and author written in gilt 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 WLDCM1995.096.018.
Interest in Cryptocurrency mining is rapidly increasing. Pictured is an image of a Sapphire Crypto Mining Rig.
This image was taken by MoneyBright and released under Creative Commons Attribution licensing. Please feel free to use either commercially or non commercial, but please add a link to www.moneybright.co.uk
Full Quality Version available at: Download TIFF from MAGIC
Title: Atlas accompanying volume III on Mining industry / United States Geological Exploration of the Fortieth Parallel; Clarence King, Geologist in charge.
Conference: United States Geological Exploration of the Fortieth Parallel (1867-1881)
Other title: Mining industry atlas
Publisher: New York : J. Bien, [187-?].
Subjects: Mines and mineral resources --United States --Maps.
Location: Babbidge Map Library Double Oversize-NonCirculating-Level 4
Call Number: G1201.H1 U53 1870
The day before the race, Luis, Brad and Beth went scuba-diving at a nearby mining quarry. My morning activity? Take photographs of Christy's flowers in their backyard!
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.
The 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.
Coal mining on Sponds Moor has a long history back into the eighteenth century. In the second half of the nineteenth century a series of shafts was developed by the lessee James Jackson, each of which was wound with a horse gin. This particular shaft towards the top of the moor is shown as working on the 1873 OS map, but was abandoned by 1897. In 1982 when I took this photograph the bearing stone for the gin was visible in the side of the collapsed shaft. The metal piece was for the pintle of the vertical post to pivot in. On a recent visit the stone was no longer visible and may have sliped further into the shaft.