Avolouhinnassa

Avolouhinnassa, often translated as "open pit mining" in English, refers to a large-scale surface mining technique used to extract minerals or other geological materials from an open excavation. This method is employed when mineral deposits are located close to the Earth's surface and can be extracted efficiently and economically without the need for underground tunnels.

The process typically involves removing overburden, which is the rock and soil lying above the ore body. This is often done using heavy machinery such as excavators, bulldozers, and trucks. Once the ore is exposed, it is drilled and blasted to break it into manageable pieces. These pieces are then loaded onto trucks or conveyor systems for transport to processing facilities.

Avolouhinnassa can create very large and deep pits, which can have significant environmental impacts. These include landscape alteration, habitat destruction, dust and noise pollution, and the potential for acid rock drainage. Strict environmental regulations and reclamation efforts are often put in place to mitigate these effects. The economic viability of avolouhinnassa depends on factors such as the grade of the ore, the volume of material to be moved, and market prices for the extracted minerals. It is a common method for mining commodities like coal, iron ore, copper, and gold.