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A salt evaporation pond is a shallow artificial salt pan designed to extract salts from sea water or other brines. Natural salt pans are geological formations that are also created by water evaporating and leaving behind salts. Salt evaporation ponds may also be called salterns, salt works or salt pans.
Coal loading excavator, heaps of coal
Heavy machinery in the quarry, excavator and small dump track working in the quarry. Piles of gravel all around, machines moving the gravel. Dusty roads in the quarry.
View of a limestone quarry crushing quarry
Aerial view of a mining quarry with heavy machinery, surrounded by forest.
Open pit mining and processing plant for crushed stone, sand and gravel to be used in the roads and construction industry
Conveyor belts in an aggregate quarry.
Open-pit mine engineer wearing protective clothes and white helmet squatting next to pile of gravel, taking notes on clipboard. Quality control concept.
Portable conveyor belt machinery at a copper mine in Chile
Conveyor belts, heaps of gravel and a large yellow dump truck in a gravel pit, aerial view.
Piles of gypsum being processed at a plant. Raw material used for fabricating wallboard in the construction industry.
Extraction of granite. Open cast mine. Stone Quarrying.
sand mining for construction use
Gravel quarry with machinery
Sea salt production.  machinery for the treatment of the salt, Salt production equipment, The equipment and salt stock of a salt plant
Tractor and the background a sand mining
An excavator at the front of a pile of gravel. Open-pit mining. No people.
Probe tester. Automatic control system, testing machine at grain elevator terminal. Collect wheat for quality analysis.
A large Bucket Wheel Excavator being repaired in a lignite pit mine
Conveyor Belt in a quarry with small stone crusher, with open mine pit in the background. typical mining
Aggregate Production Quarry in Cyprus Republic
Panoramic image of a gravel mine before sunset. Big machinery and a lot of sand and gravel.
Bucket wheel stacker reclaimer  in maritime bulk terminal of coal harbor.
A large stone crusher plant with silos and construction machinery  used for highway renovation, aerial view.
Factory machine for crushing stones and other loose aggregates
Excavator loading sand into truck in a sand quarry
Quarry for the extraction of granite. Granite quarry.
Aerial view of empty roads inside the quarry. White gravel and sand everywhere.
Panorama of Open-pit Mine with Earth Mover and conveyor belts
On a sunny day on March 13, 2024, a sweeping machine was cleaning the excess dust on the road under construction in Shuangliu District, Chengdu, Sichuan Province, China.
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