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US Borax Trona Mine
Owens Lake, California
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Trona is excavated by digging a trench with the tracked excavator (below).
The wet ore is then dumped to the side of the trench, where
it is moved by dozers to form thin layers and left to dry in
the sun. |
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The tracked excavator, parked above the trona trench. |
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The dozer used to move the excavated trona into l
layers and again into piles for loading into haul trucks. |
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The tracked excavator, above the trona trench.
Note the dark material in the trench bottom, this is lake
sediments, silt and other similar material from a brackish
water structure, that once was Owens Lake. |
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The mine geologist, explaining the nature of the deposit, and the mine operations. |
Once the trona is dried, it is placed into piles,
approximately equal to the haul truck capacity, and loaded
into the trucks for transport to the Borax Mine, where it is
used in processing the borax ores. Some trona is also used as
a feed additive for cattle and chicken feed. If local markets develop
for higher quality trona, plans for a processing plant are on "the drawing board".
For more info on Trona, Click tn this text.
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