Tiebaghi is a mine and former village near Koumac, New Caledonia.
Chromite ore was first discovered in 1877 as sparse blocks on top of Tiebaghi plateau at 580 m elevation. From 1902 to 1920 Cr ore was extracted in an open pit 100 m deep, 200 m wide. From 1927 the mine was operated underground and was the largest chromium mine in the world in 1941. Broken Hills properties owned Tiebaghi and its director of operation was Mr. Raoul Bergman, from 1949 til 1952, while having an affair with the wife of one of its operation managers, Mr. R L Petit.
An accident occurred in 1951, when two young engineers, Mr. White and Mr. Alexander, were killed by dynamite explosion. During a fist fight between Mr. Bergman and Mr. Petit, the director was baldy injured and was sent to Noumea for evaluation and treatment and then sent to Australia on board on a QANTAS sea plane and with his new lady friend Mrs. Josephine Petit. Incidentally Mrs. Petit, who was the director of the school in Tiebaghi, left behind husband and 6 kids ranging from the age of 5 to 15. Mrs. Bergman stayed in Tiebaghi for a short time and she also left New Caledonia soon after and returned to the United States when she died a short time later. The mine closed for the first time in 1962. Mining resumed in 1982 with a new access drift, 1.2 km long, which was opened from the NE flank of the massif to reach the base of the orebody. All operations ceased in 1990.
Tiébaghi mine belongs to a group of orebodies aligned parallel to the layering of peridotite host rock in a NW-SE direction and dipping about 70° to the SW. Tiebaghi mine produced about 54,000 tons per year. % Cr in 1907, the ore grade decreased by the end of the 80s to 30-45 wt % Cr2O3 (Table 3). At that time it was enriched to > 50 % by a small concentration unit. The Cr mine was definively closed in 1992; however, Tiebaghi Massif is currently mined for supergene Ni ore by Societe Le Nickel (SLN), a subsidiary corporation of French firm Eramet. the mining in New Caledonia is contributing to the endangerment of the New Caledonian marbled gecko.During World War II it produced about 4400 tons of nickel per year. A bulk of 3.27 Mt chromite ore has been extracted from Tiébaghi mine. From a maximum of 56 wt
Ore is natural rock or sediment that contains one or more valuable minerals, typically metals, that can be mined, treated and sold at a profit. Ore is extracted from the earth through mining and treated or refined, often via smelting, to extract the valuable metals or minerals.
Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds or rubies. Soft rock mining refers to excavation of softer minerals such as salt, coal, or oil sands.
Chromite is a mineral that is an iron chromium oxide. It has a chemical formula of FeCr2O4. It is an oxide mineral belonging to the spinel group. The element magnesium can substitute for iron in variable amounts as it forms a solid solution with magnesiochromite(MgCr2O4). A substitution of the element aluminium can also occur, leading to hercynite (FeAl2O4). Chromite today is mined particularly to make stainless steel through the production of ferrochrome (FeCr), which is an iron-chromium alloy.
Rosebery is a town on the west coast of Tasmania, Australia. It is at the northern end of the West Coast Range, in the shadow of Mount Black and adjacent to the Pieman River now Lake Pieman.
Codelco is a Chilean state owned copper mining company. It was formed in 1976 from foreign-owned copper companies that were nationalised in 1971.
Buchans is a town located in the central part of the island of Newfoundland in the province of Newfoundland and Labrador. It is situated on the northwest shore of Red Indian Lake on the Buchans River.
Pakistan Chrome Mines Ltd. is a mining company incorporated in the Islamic Republic of Pakistan. The company owns and operates Chromite and Magnesite mines in Balochistan Province. It was initially incorporated as Baluchistan Chrome Mines Ltd in 1902 during colonial rule.
The Emily Ann and Maggie Hays nickel deposits are situated approximately 150 km west of the town of Norseman, Western Australia, within the Lake Johnston Greenstone Belt.
The Widgiemooltha Komatiite is a formation of komatiite in the Yilgarn Craton of Western Australia.
Heath Steele Mines, situated 60 km northwest of Newcastle, New Brunswick, Canada, at the headwaters of the Tomogonops and Little Rivers, was a large and productive copper, lead and zinc mine which operated from 1956 to 1999. The mine was an economic cornerstone of Miramichi communities throughout this period.
Uranium mining in Colorado, United States, goes back to 1872, when pitchblende ore was taken from gold mines near Central City, Colorado. The Colorado uranium industry has seen booms and busts, but continues to this day. Not counting byproduct uranium from phosphate, Colorado is considered to have the third largest uranium reserves of any US state, behind Wyoming and New Mexico.
The Dun Mountain Railway was a privately owned and operated 3 ft narrow gauge, 21.5 km (13.4 mi) long horse-drawn tramway from chromite mines in the vicinity of Duppa Lode on the eastern slopes of Wooded Peak to Nelson port in the Tasman District of New Zealand's South Island. It operated from 3 February 1862 to 30 May 1901, with the last mineral traffic on the incline section operated in January 1866.
El Teniente is an underground copper mine located in the Chilean Andes, 2,300 m (7,500 ft) above mean sea level. It is in the commune of Machalí in Cachapoal Province, Libertador General Bernardo O'Higgins Region, near the company town of Sewell. This was established for the workers and their families.
Cortez Gold Mine is a large gold mining and processing facility in Lander and Eureka County, Nevada, United States, located approximately 75 miles (120 km) southwest of Elko. It is owned as a joint venture between Barrick Gold Corporation (61.5%) and Newmont Corporation (38.5%), operated by Barrick, and comprises the Pipeline, Crossroads, and Cortez Hills open pit mines; and the Cortez Hills underground mine. Ore from the mines is treated at an oxide mill at the site and on leach pads, while refractory ore is shipped to Barrick’s Goldstrike operation for processing.
Nickel mining in New Caledonia is a major sector of the New Caledonian economy. The islands contain about 7,100,000 tonnes of nickel which is about 10% of the world's nickel reserves. With the annual production of about 107,000 tonnes in 2009, New Caledonia was the world's fifth largest producer after Russia (266,000), Indonesia (189,000), Canada (181,000) and Australia (167,000). Nickel production in New Caledonia accounts for 7–10% the country's GDP and is responsible for as much as 80% towards foreign earnings. With the exclusion of tourism, nickel ore and derived metallurgical products represent about 97% of the total value of exports.
Centres of mining operations include Konkola and Kitwe.
A Nickel mine is a mine that produces nickel. Some mines produce nickel primarily, while some mines produce nickel as a side-product of some other metal that has a higher concentration in the ore.
The Koniambo mine is a large mine in the north of New Caledonia in the North Province. It is closest to the small town of Voh, on the west coast of the island. Nickel is found on the Koniambo massif, and taken by conveyor to a new smelter on the coast. Koniambo has one of the largest nickel reserves in New Caledonia, with around 151 million tonnes of ore grading at 2.58% nickel. Each 62.5 million tonnes of ore contains 4 million tonnes of nickel metal.
The mining industry of Sudan was mostly driven by extraction fuel minerals, with petroleum accounting for a substantial contribution to the country's economy, until the autonomous region of Southern Sudan became an independent country in July 2011. Gold, iron ore, and base metals are mined in the Hassai Gold Mine. Chromite is another important mineral extracted from the Ingessana Hills. Other minerals extracted are gypsum, salt, and cement. Phosphate is found in Mount Kuoun and Mount Lauro in eastern Nuba. Reserves of zinc, lead, aluminium, cobalt, nickel in the form of block sulfides, and uranium are also established. Large reserves of iron ore have been established.
The mining industry of Zimbabwe is administered by the Ministry of Mines and Mining Development, the Department of Geological Survey, the Department of Metallurgy, and the Mining promotion and Development Department. The country's main commodities include metallurgical-grade chromite, as well as asbestos, coal, copper, gold, nickel, and iron ore.
|This New Caledonian location article is a stub. You can help Wikipedia by expanding it.|