·Both host rock is serpentinite and talc carbonate rock Idiomorphic chromite is the only ore mineral appearing in economic quantities The average content of the ore is 26% Cr 2 O 3 and the Cr/Fe ratio is The Kemi chromium mine is an open pit mine with a waste rock to ore ratio of 1
·The abandoned chromite asbestos mines are located in the Roro hills West Singhbhum Jharkhand India where mining operation ceased in 1983 and since then these mines are causing environmental
Sukinda Valley of Odisha is well known for its all embracing chromite ore deposits The rate of chromite ore extraction although mining is being carried out in this region since independence has been amplified during 1980 s in consequence of its sky scraping demand and subsequently its surrounding environment is also deteriorating day by day
·Chromite mining activities are indispensable for production of goods and services Sukinda is a major mining site of Odisha India polluted by chromium which is highly toxic in its hexavalent form The Sukinda valley is a rich source of chromites amounting to almost 95% of Cr available in India and is the fourth most polluted site worldwide Immediate
The rock is drilled and blasted then moved to the surface by truck belt conveyor or elevator Once at the surface the material is sent to a mill to separate the ore from the waste rock Lower grade metal ores found closer to the surface can be profitably mined using surface mining methods which generally cost less than underground methods
·There are number of open cast mines in the area During the process of mining the waste rock materials as well as chromite ores are dumped on ground surface In Sukinda mining area around million tonnes of solid waste have been generated in the form of rejected minerals overburden material/waste rock and sub grade ore [18] The mine
·stockpiles and waste rock dumps Hawley and Cun ning 2017; Geete et al 2023 Igwe and Chukwu 2019 performed a limit equilibrium LE slope sta bility analysis on the mine tailing dumps at Enyigba Southeastern Nigeria The dump was analyzed for a constant shear strength parameter at multiple Fig 1 Coal mine over burden indicating wide
·The orebody of Angouran mine was contacted with schist rock as footwall and limestone as hangingwall The mine northwest wall is composed of 15 m completely weathered schist 25 m moderately weathered schist and intact schist This reveals that the rock slope in the mine northwest wall was considerably influenced by the F T process
What is mine waste Mine waste is the material left over after mining It consists of tailings the material that remains after mined ore is milled and concentrated waste generated during ore processing such as slag leaching solutions and residues and waste rock and material that was removed to get to the ore
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