Sciences

Question Corner: How different are the lakes under Antarctic ice?

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British scientists have found ()Science advance) Lakes under the Antarctic ice sheet may be more hospitable than previously thought, and may host more microbes. More than 400 ‘subglacial’ lakes have been discovered under the Antarctic ice sheet, many of which have been separated from each other and have been in the atmosphere for millions of years.

Researchers drilled the edge of the ice sheet into two small subgalacial lakes, where water could flow rapidly in or out and microbial life could be found below.

Lakes are being harvested from sunlight, they derive their energy not through photosynthesis but from the processing of some of the chemicals found in the sediment on the lake beds. Since sediments are found only on the lake bed, a mixture of water is required so that sediment is evenly distributed.

While water in surface lakes gets mixed up by the action of wind and convection currents due to the heat of the sun, the team found that in lakes below the Antarctic, land mixing is due to starvation – rising from the Earth’s interior to the planet. Combination of heat saved by formation and decay of radioactive elements.

“The water in the lakes is still no more sedentary; The flow of water is quite dynamic, allowing fine sediment to be suspended in the water. With the dynamic flow of water, a full body of water can be habitable, even if more life is focused on the floor, ”Louis Coston of Louis University and one of the authors of the British Antarctic Survey and Study said in a release.

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