![]() In this depression, there’s no outlet for the water, and because the bowl is in an extremely arid region, the rate of evaporation is such that enormous salt flats have developed over millennia. Think of a salar as a giant, shallow depression into which water is constantly flowing, both through surface runoff but also through the much slower flow of subsurface waters. She completed this work as part of her Ph.D in geosciences at UMass Amherst. ![]() “You can’t protect the salars if you don’t first understand how they work,” says Sarah McKnight, lead author of the research that appeared recently in Water Resources Research. ![]() This new characterization represents a leap forward in understanding how water moves through such basins, and will be key to minimizing the environmental impact on such sensitive, critical habitats. Researchers at the University of Massachusetts Amherst and the University of Alaska Anchorage are the first to characterize two different types of surface water in the hyperarid salars-or salt flats-that contain much of the world’s lithium deposits.
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