A retired scientist says that if U.S. Magnesium is allowed to extend its pipelines into the Great Salt Lake, it “would destroy the remaining chance that [Great Salt Lake’s] ecosystem might quickly recover if lake levels were to rebound.”
US Magnesium, seen across the Great Salt Lake from Stansbury Island on Saturday, March 26, 2022.about plans to siphon water from the shrinking Great Salt Lake.
Francisco Kjolseth | The Salt Lake Tribune Small rock like structures formed by bacteria in the Great Salt Lake have become visible along the North shore of Antelope Island. Older structures dry up and collapse as the water recedes leaving dry domes. Known as microbialites, a few of the microbial mounds are being gathered and studied by researchers.
Even microbialites that remain submerged face threats from rising salinity as the lake shrinks and its minerals concentrate. Baskin pointed to the railroad causeway that bisects the lake, which turned the north arm hypersaline. It has killed off roughly 40% of the lake’s microbialite colonies, he said, which built their dome-like and now salt-crusted rock formations over thousands of years.
A satellite image of a marina on the Great Salt Lake's Promontory Point shows dredged sediment entering the water, appearing as gray streaks, according to hydrologist Robert Baskin. “In a year you’ll get three feet of muck forming,” Frantz said. “And that’s way, way faster than the microbialites grow.”Baskin worries about the potentially toxic material getting stirred up with the sediment as well. Mercury has been detected throughout the lake. Its southern end is known for issues with selenium, which weakens bird eggs.
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