No.3 Mine Pit

The altitude is 1,195 m. The main part of the No.3 pegmatite ore vein is from west to north, and the inclination is from south to west, with unique form, in straw hat shape. The height and width of the hat are 250 m; the diameter of the marginal ridge is 2 km, 20 - 40 m thick. With concentric ring banded structure, the bell-shaped body part is classified as 9 belts in turn from outside to inside.

Since the No. 3 pegmatite ore vein was officially mined in 1950, the ore vein has been mined from the orebodys outcrop with the altitude of 1,236 m to the deep part of the pit with the altitude of 1,096 m. The vertical depth is 140 m, 102 m lower than the Irtysh River. There were over 7 million tons of available ores in total. 
The No. 3 mine pit is about 250 m long, 240 m wide and 140 m deep, and it is the mining pit left by the exploration of the No. 3 ore vein. The mining pit has 13-floor annular ore hauling lane, great and momentous, like the huge "bullring" in Ancient Rome.


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