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As part of the Witwatersrand, the largest gold mineralization on earth, Mponeng is the result of the discovery of the basin by Europeans. Beginning in the 1850-70s a series of mineral discoveries were made in the area, including those of Pieter Jacobus Marais panning gold from a river and Henry Lewis finding quartz and gold vein on a farm, that led to the Witwatersrand Gold Rush in 1886. [9]
East Rand Proprietary Mines (ERPM) is a 125-year-old underground gold mining operation on the Witwatersrand Basin at Boksburg, to the east of Johannesburg. The mine employed 3,850 people. The mine employed 3,850 people.
Mining of sulfur from a deposit at the edge of Ijen's crater lake, Indonesia. Mining is the extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory.
Blyvooruitzicht Gold Mining Company Limited (Blyvoor), has underground and surface operations and is situated on the north-western edge of the Witwatersrand Basin. Established in 1937, it was the first mine on the West Wits line. Production started here in 1942. [4]
Yugoslav MRUD anti-personnel mine (front, accessories fitted). A Yugoslav MRUD anti-personnel mine (line drawing). A cutaway of an MD-82 mine. An M14 mine, showing a cutaway view.
Mounting seats from the sides or roof of the vehicle, rather than the floor, will help protect occupants from shocks transmitted through the structure of the vehicle and a four-point seat harness will minimise the chance of injury if the vehicle is flung onto its side or its roof–a mine may throw a vehicle 5 – 10 m from the detonation point.
An ore shoot is a hypogenic mass that is deposited in veins within a planar channel or lode, found in a shear or fault zone, fissure or lithologic boundary. [1] The ore shoot is the area of concentration which contains a primary ore along the veins present in the rock, and consists of the most valuable part of the deposit.
www.hecla-mining.com The Lucky Friday mine is an underground silver , lead , and zinc mine in the western United States , near Mullan, Idaho . [ 2 ] Operated by Hecla Mining company, it is one of the few mines remaining operational in the Silver Valley of northern Idaho , producing 1000 tons of ore per day.