What is an open pit gold mine?

Open-pit mining, also known as opencast mining, is a surface mining technique that extracts minerals from an open pit in the ground. Open-pit mining is the most common method used throughout the world for mineral mining and does not require extractive methods or tunnels.

Is open-pit mining good?

Open pit mining has higher productivity (3-5 times of underground methods), lower production costs, more safe and hygienic working conditions, more complete recovery of a mineral, and lower per unit production cost.

Advantages of open-pit mining?

Powerful trucks and shovels can be used to move large volumes of soil and rocks. Equipment not restricted by the size of the opening you are working in. Faster production. Lower cost to mine means lower grades of ore are economic to mine.

What happens after open-pit mining?

Open-pit mines are typically enlarged until either the mineral resource is exhausted, or an increasing ratio of overburden to ore makes further mining uneconomic. When this occurs, the exhausted mines are sometimes converted to landfills for disposal of solid wastes.


 

After mining finishes, the mine area must undergo rehabilitation to minimize environmental damage.
This step in the mining process is critical to ensuring the sustainability of the land for future use.

Profitable Mining

Investors in the pit mine profit in two ways. It is cheaper to operate an open pit mine because less manpower and equipment is required. Strip mining, or open pit mining is profitable sooner than a shaft mine because more ore can be extracted from an open pit mine and more quickly.