Beneath the surface of the Great Salt Lake, situated in the US state of Utah, a substantial freshwater system spanning thousands of kilometers has been uncovered. This finding was announced by researchers from the University of Utah, whose study results were published in the journal Scientific Reports.
The specialists became intrigued by this subject when formations, measuring 50 to 100 meters across, emerged on the dried lakebed in Farmington Bay. These mounds were densely covered with reeds—an indicator that water was migrating upwards from below.
Aeromagnetic surveys revealed that fresh water resides beneath the saline surface layer, saturating the sedimentary deposits at depth. According to Michael Zhdanov, a university researcher, mapping this freshwater arrangement will be instrumental in estimating its potential volume.
Hydrologist Bill Johnson observed that typically, denser salt water should settle beneath and displace any fresh water upwards. Nevertheless, the situation at the Utah lake defies this norm: fresh water is instead infiltrating beneath the salt layer and spreading throughout the underlying strata.
The immediate priority is to ascertain whether this fresh water can be utilized to dampen pollution hotspots and irrigate them effectively without causing significant disruption to the existing freshwater ecosystem. Bill Johnson, hydrologist
The scientific community anticipates that this discovery could potentially revolutionize how saline lakes across the globe are studied.
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