A previously unknown meteorite crater has been found while Evolution Mining Australias third largest gold mining company was drilling for gold near the mining town of Ora Banda in outback Western Australia The crater is not visible from the surface but geophysical surveys show a 3 mile wide circular structure buried in the underground With a diameter of 3 miles or 5 km the Ora Banda crater is thought to be one of the largest meteorite craters in the world.
Using modern survey techniques like electromagnetic and gravimetric mapping a team of geologists led by Perth based geophysicist Jayson Meyers was able to map the outer rim and central uplift of the crater The meteorite impact pushed down the ground but then the Earth rebounded forming the central mountain sized uplift.
Gravimetric map showing Ora Banda crater and location of the impact site.
The Government of New South Wales Australia NSW has announced the launch of an underground mine explosives facility on the Central Coast to encourage further innovation and development of explosive testing in the mining industry The independent underground mine explosives facility is the only one of its kind in Australia and aims to.
Underground mining operations face a distinctly unique set of challenges Equipment and components must be manually handled in these settings as labour is often operating in restricted spaces often without access to large lifting equipment.
A normal part of many underground mining processes is the regular extension and retraction of conveyor systems particularly in producing areas of the mine Whenever such conveyors are extended or retracted however the entire system must be stopped Stoppages cost production time and money.
CMA has designed the modular Redline conveyor system to remedy these challenges in underground mining.
The RedlineTM conveyor system removes the need to stop conveyors during extension retraction or even maintenance Production can continue uninterrupted.
When combined with CMAs Roll Over Idler the idlers within a conveyor can be replaced from the safety of the walkway while the conveyor is still operating This directly reduces the need to have idler replacement days or unplanned stoppages to replace failed components.
Maintenance can be completed while production continues without the need for lifting equipment.
Such a step change in productivity has an enormous impact on a mines viability and economic performance.
The Redline designed is embedded with safety features As the system is hung from an overhead monorail manual handling is almost completely removed from the process of managing a conveyor Gone is the need to bend and twist while lifting and carrying heavy conveyor components.
Other ancillary equipment and services can also be attached to the system if desired Walkway lighting communications personnel tracking piped services stone dusting CABA refill stations explosion barriers ventilation and guidance systems can all be incorporated into the system.
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Sep 07 2020nbsp018332A previously unknown meteorite crater has been found while Evolution Mining Australias third largest gold mining company was drilling for gold near the mining.
Underground mining is more complex and more expensive than open pit mining Where removing the overburden would be too costly or ineffective to reach the ore the decision is made to go underground After open pit mining is complete valuable ore can be mined through underground mining methods.
Redpath Australia are a leading underground mining services contractor with offices in Brisbane and Perth We provide safe economical and innovative solutions Our professional and innovative employees supported by effective business systems and processes underpin our business success.
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