Rock blasting is the controlled use of explosives to excavate rock. It is a technique used most often in mining and civil engineering. This article is concerned solely with chemical explosives. ... Rock may refer to: Rock, a geologic substance composed of minerals Rock, short for Rock and Roll music Rock, a small offshore islet with minimal soil Rock, a confectionery made and sold in many of the UKs seaside holiday resorts Rock candy, a type of confectionery composed of large... The El Chino Mine located near Silver City, New Mexico is an open-pit copper mine Mining is the extraction of valuable minerals or other geological materials from the earth, usually (but not always) from an ore body, vein, or (coal) seam. ... In modern usage, civil engineering is a broad field of engineering that deals with the planning, construction, and maintenance of fixed structures, or public works, as they related to earth, water, or civilization and their processes. ...

In 1990, 2.1 billion kg of commercial explosives was consumed in the USA, representing an estimated expenditure of 3.5 to 4 billion 1993 dollars on blasting. Australia had the highest explosives consumption that year at 500 billion kg, and Scandinavian countries are also big blasters. 1990 is a common year starting on Monday of the Gregorian calendar. ... 1993 is a common year starting on Friday of the Gregorian calendar and marked the Beginning of the International Decade to Combat Racism and Racial Discrimination (1993-2003). ... Scandinavia, Fennoscandia, and the Kola Peninsula. ...

References

• Per-Anders Persson, Rock Blasting and Explosives Engineering