Which of the following is not an underground mining method?

Solution (By Examveda Team)

Underground Mining Methods:
Underground mining methods are employed when mineral deposits are located deep beneath the surface, making surface mining impractical or impossible. These methods involve excavating ore bodies from within the earth, requiring extensive underground infrastructure and specialized techniques.

Open-Pit Mining:
Open-pit mining, also known as open-cast mining, is a surface mining technique where a large pit is excavated to access mineral deposits near the surface. This method is the opposite of underground mining.

Shrinkage Stoping, Sublevel Stoping, and Cut and Fill:
Shrinkage stoping, sublevel stoping, and cut and fill are all underground mining methods. They involve various techniques to extract ore from underground, including creating openings within the orebody and supporting the surrounding rock.

Correct Answer: A
The correct answer is Option A: Open-pit mining because it is explicitly a surface mining method, not an underground method. The other options (shrinkage stoping, sublevel stoping, and cut and fill) are all established underground mining techniques.