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. It also involves the same techniques used to excavate ores of gems, such as diamonds and rubies. Soft-rock mining refers to the excavation of softer minerals, such as salt, coal, and oil sands.
Peine is a district in Lower Saxony, Germany. It is bounded by the districts of Hildesheim, Hanover and Gifhorn, and the cities of Brunswick and Salzgitter.
Lengede is a municipality in the district of Peine, in Lower Saxony, Germany, some 18 kilometers southwest of Braunschweig and 40 kilometers southeast of Hanover. It became known to the world in 1963 because of a mining disaster and the subsequent rescue operation of eleven surviving miners, which became known as the "Wunder von Lengede".
The Knox Mine disaster was a mining accident on January 22, 1959, at the River Slope Mine in Jenkins Township, Pennsylvania.
Erich Mende was a German politician of the Free Democratic Party (FDP) and Christian Democratic Union (CDU). He was the leader of FDP from 1960 to 1968 and the vice chancellor of Germany from 1963 to 1966.
The Quecreek Mine rescue took place in Somerset County, Pennsylvania, when nine miners were trapped underground for over 77 hours, from July 24 to 28, 2002. All nine miners were rescued.
The Beaconsfield gold mine collapsed on 25 April 2006 in Beaconsfield, Tasmania, Australia. Of the seventeen people who were in the mine at the time, fourteen escaped immediately following the collapse, one miner was killed, while the remaining two were found alive on the sixth day by miners Pat Ball and Steve Saltmarsh. Webb and Russell were rescued on 9 May 2006, two weeks after being trapped nearly 1 kilometre (0.62 mi) below the surface.
The Kimberley Mine or Tim Kuilmine is an open-pit and underground mine in Kimberley, South Africa, and claimed to be the deepest hole excavated by hand, although this claim is disputed by Jagersfontein.
Heino Ferch is a German film, theatre and television actor. His notable film roles include Albert Speer in Downfall (2004) and Harry Melchior in The Tunnel (2001).
The Crandall Canyon Mine, formerly Genwal Mine, was an underground bituminous coal mine in northwestern Emery County, Utah.
Paul Gratzik was a German dramatist and novelist. He came to wider public attention in 2011 as the subject of the documentary film Vaterlandsverräter by Annekatrin Hendel about his past as a Stasi informer.
Klaus Johannes Behrendt is a German actor. Since 1992 he has starred in the Westdeutscher Rundfunk version of the popular television crime series Tatort; he also starred in the 2008 film Die Bienen – Tödliche Bedrohung.
The 2010 Copiapó mining accident, also known as the "Chilean mining accident", began on 5 August 2010, with a cave-in at the San José copper–gold mine, located in the Atacama Desert 45 kilometers (28 mi) north of the regional capital of Copiapó, in northern Chile. Thirty-three men were trapped 700 meters (2,300 ft) underground and 5 kilometers (3 mi) from the mine's entrance, and were rescued after 69 days.
A Dahlbusch Bomb is an emergency evacuation device for use in mining. In its original form it is a torpedo-shaped cylinder with a length of 2.5 metres, developed to transport trapped miners through boreholes after mining accidents. It does not contain explosives: it was called a "bomb" because of its shape.
The 2010 Copiapó mining accident occurred when the San Jose Mine near to Copiapó, Chile, collapsed, leaving 32 miners of Chilean nationality and one Bolivian miner trapped inside about 700 metres below the surface. The men were trapped in the mine for 69 days before being rescued. The discovery of the miners and their eventual rescue received global attention, with over 2000 members of the media reporting from the San Jose Mine. Global leaders expressed good wishes for the rescue and congratulations upon its successful completion.
Layne Christensen Company is a U.S.-based global water management, construction and drilling company. The company has two divisions, which are Water Resources-Mineral Services and Inline.
A Day for a Miracle is a 2011 film directed by Andreas Prochaska in 2011 and produced by Rowboat Film- und Fernsehproduktion and Graf Film for public German TV channel ZDF and Austrian ORF. The film is based on real events, telling the story of a three-year-old girl from Austria, who fell into the lake behind her parents' house in 1998, and had been under water for 30 minutes when she was found. Nobody believed she had a chance at survival when the young cardiovascular surgeon Dr. Markus Thalmann takes up the seemingly hopeless fight for the young girl's life. His rescue has written medical history. The screenplay was written by Christoph Silber and Thorsten Wettcke.
Hans-Joachim Griephan is a German journalist, publisher and founder of the "Wirtschaftsinformationsdienst" published since 1964, the Griephan Briefe.
Uranium mining around Bancroft, Ontario, was conducted at four sites, beginning in the early 1950s and concluding by 1982. Bancroft was one of two major uranium-producing areas in Ontario, and one of seven in Canada, all located along the edge of the Canadian Shield. In the context of mining, the "Bancroft area" includes Haliburton, Hastings, and Renfrew counties, and all areas between Minden and Lake Clear. Activity in the mid-1950s was described by engineer A. S. Bayne in a 1977 report as the "greatest uranium prospecting rush in the world".
Rat-hole mining or Rat mining is a process of digging employed in North East India to extract coal, where a narrow hole is manually dug by extraction workers. The practice is banned by the National Green Tribunal; however, the techniques are still employed by artisanal mining operations in several parts of India, especially in Meghalaya.
