Goldstrike_mine_2016_satfoto.jpg

Summary

Description Goldstrike mine 2016 satfoto.jpg	English: Goldstrike mine in northeastern Nevada is one of the largest gold mines in the world. In 2016, the mine produced 1.1 million ounces of gold. Only two other operations—the Grasberg mine in Indonesia and the Muruntau mine in Uzbekistan—produced more. On September 25, 2016, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite captured this false-color image of the mine. Vegetation appears red. Water is dark blue. Bare rock appears in shades of brown and gray. The most noticeable feature is the Betze-Post open-pit mine, which is managed by Barrick Gold Corporation and has a depth of more than 500 meters (1,600 feet). Smaller open-pit mines operated by other companies are also visible northwest and southeast of the Betze-Post pit. Trucks transport ore from the bottom of the pit to nearby processing facilities, where gold is concentrated and extracted. On average, there is roughly 0.1 ounce of gold per ton of ore. Processing typically involves crushing ore into powder, exposing it to high temperatures and pressures, and leaching material out of liquid slurries. Leftover slurry is stored in tailing ponds, where solids settle out. In addition to its large open-pit mine, Goldstrike has two underground mines that also produce ore.
Date	25 September 2016
Source	https://earthobservatory.nasa.gov/IOTD/view.php?id=90827&src=eoa-iotd
Author	NASA Earth Observatory image by Jesse Allen

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