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Situated in the frigid McMurdo Dry Valleys, only the pond’s high salt content — by far the highest of any body of water on the planet — keeps it from freezing into oblivion. Don Juan Pond. DJP is composed of up to 40% salt by. Don Juan Pond could be a stand-in for basins on the frozen desert of Mars. Dickson, J. The approximate salt content of Don Juan Pond: 40 percent, which makes it 18 times saltier than seawater, Dickson said. Antarctica's Don Juan Pond, the world's saltiest body of water, needs its salt to keep from freezing into oblivion. If we dried it up, that would be all that’s left,” said Dickson. the. “The snow falls and it deposits salt on the surface.”. The Red Planet is extremely cold and dry, and the McMurdo Dry Valleys are one of the coldest and driest locations on Earth. The liquid in Don Juan Pond is almost 45 percent salts by weight. “Moisture comes from the ocean and it moves inland as snow,” said Dickson. “You couldn’t get Don Juan Pond from these shallow groundwaters,” Toner said. Mars is a very different place than Earth. “We find dried-up closed basins everywhere on Mars,” said Dickson. In addition to disproving an aging … Recent studies hint that liquid water might exist on the surface of Mars, potentially harboring life or even eventually supporting long-term human settlements. New research, however, finds they were mistaken and may give clues to how ponds formed on Mars. Its average temperature is below the freezing point and its atmosphere is comprised of carbon dioxide. Since the Martian ponds haven’t been active in more than four billion years, Dickson said it wasn’t possible to know exactly what types of ponds they were. The only body of water that is saltier is a shallow pool in Antarctica known as Don Juan Pond. (2013, January 30) Don Juan Pond, Antarctica: Near-surface CaCl2-brine feeding Earth’s most saline lake and implications for Mars. It was first visited in 1961 and named after the expedition’s helicopter pilots, Donald Roe and John Hickey, earning it the name Don Juan Pond. It is wedged between the Asgard Range to the south and the Dais Range to the north. They will also explore the nearby slopes to measure the chemistry of the moisture seeps, and try to find further evidence for the source of salts to Don Juan Pond. Covering an area 100 by 300 meters (328 by 984 feet) but just 10 centimeters (~four-inches) deep, the pond contains enough salt … The pond was long believed to be fed by deep groundwater. The Dead Sea has a salinity of 34 percent; the Great Salt Lake varies between 5 and 27 percent. Call 888.426.2151 or email customercare@fondriest.com. His calculations also show that upwelling groundwater cycles through the pond every six months, meaning the water must exit the pond via some unseen underground outflow. “After 60 years of extensive study, we still don’t really know exactly where it’s coming from, what drives the fact that it’s visible on the surface, and how it’s changing.”. Top image: A camera installed above Don Juan Pond in Antarctica’s McMurdo Dry Valleys (Credit: Geological Sciences/Brown University), Pingback: Lake Don Juan is Saltiest on Earth - Lake Scientist, Your email address will not be published. The pond is famous for its saltiest water in the world and is also known as Don Juan Lake. A new University of Washington study uses the pond’s bizarre chemistry to pinpoint the water’s source. The salty water droplets that result make their way down sloping land into Don Juan Pond. The research was funded by NASA. The approximate salt content of Don Juan Pond: 40 percent, which makes it 18 times saltier than seawater, Dickson said. Scientists say that rivers and oceans may have been prominent features in the Red Planet's early history, but any water at the … The recent paper, published Sept. 15 in Earth and Planetary Science Letters, reports that it is fed by a regional deep groundwater system and not, as previously suggested, from moisture seeping down from local valley slopes. For more information, contact Toner at toner2@uw.edu. The darker lines on steep slopes, which look like moisture streaks observed above Don Juan Pond, could be caused by a similar groundwater system. Researchers will spend six weeks camping near the pond and taking repeated chemical measurements of its liquid. PROVIDENCE, R.I. [Brown University] — Antarctica’s Don Juan Pond might be the unlikeliest body of water on Earth. 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