how deep is a copper ore pit

• 

  How do we extract minerals? | U.S. Geological Survey

  The primary methods used to extract minerals from the ground are: Underground miningSurface (open pit) miningPlacer mining The location and shape of the deposit, strength of the rock, ore grade, mining costs, and current market price of the commodity are some of the determining factors for selecting which mining method to use.Higher-grade …

  view more
• 

  Open Pit Mining - minedocs.com

  2023225 · Introduction. Open pit mining is defined as the method of extracting any near surface ore deposit using one or more horizontal benches to extract the ore while dumping overburden and tailings (waste) at a specified disposal site outside the final pit boundary. Open pit mining is used for the extraction of both metallic and nonme-tallic ores.

  view more
• 

  [PHOTOS] Top 10 Largest Open Pit Mines in the World

  201599 · 10. Escondida Copper Mine. Located in the vast landscape of the Atacama Desert in Chile, the Escondida Copper Mine is one of the largest open pit mines in the world. Consisting of two open mines – Escondida Pit and Escondida Norta – the mine is 3.9 kilometer long, 2.7 kilometers wide and 645 meters deep.

  view more
• 

  Cadia East Underground Gold and Copper Mine, New South …

  2013130 · The Cadia East Underground gold and copper mine is the first Australian panel cave and the country's largest underground mine, with significant ore reserves and a projected lifespan of more than 30 years.

  view more
• 

  World's Largest Man-made Hole — Explore Salt …

  2  · Bingham Canyon mine (also known as Kennecott Copper mine) is located south-west of Salt Lake City, Utah, in the United States. It is the deepest open pit mine in the world. The Bingham Canyon pit is approximately 2.48 miles (4 km) wide and more than 0.74 mile (1.2km) deep, which is taller than two Empire State buildings stacked on top of each ...

  view more
• 

  Life Cycle Assessment in Deep Open-Pit Copper Mines

  2022322 · Limited studies surveyed the environmental impacts of deep open-pit copper mines. This study investigates these impacts to give an insight into the life cycle assessment of deep open-pit copper ...

  view more
• 

  Ten big holes: the world's largest open-pit mines - StoryMaps

  2021923 · From ore to pure The ore that's dug out of Bingham Canyon's pit goes through a series of processes to extract and refine the copper, prepare it for shipping, and remove and dispose of waste materials.

  view more
• 

  Untangling the complex web of environmental, social, and …

  202431 · As the global demand for copper continues to rise, industry shifts towards deeper, lower-grade ore deposits, leading to the formation of deep and large-scale mines. Different scholars have provided various definitions of deep open-pit mining, each based on their own perspectives and study scope.

  view more
• 

  Kennecott Copper Mine | Intermountain Histories

  201352 · Kennecott Copper Mine, located in Bingham Canyon, is the largest open-pit mine in North America. It is known as the “Biggest Pit in the World,” because it is the largest man-made excavation in the world. It covers about twenty-seven thousand acres, is half a mile deep, and two and a half miles wide. It runs twenty-four hours a day, three hundred …

  view more