Slump abyss appeared in Chile!

A giant crater appeared 3 days ago in the Atacama Desert in Chile. With a diameter of 25 meters and a depth of 200 meters, it arouses the curiosity of scientists. what happened ?

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On March 14, 2021, at the initiative of the Institute for Research on Human Adaptation, a team of 15 volunteers embarked on a timeless adventure: they would remain trapped in Lumbrives Cave (Arig) for 40 days, one of the largest caves in Europe. All without any information about the date or time. At their head is Christian Clout, who here recounts the early days of the expedition. Note that the recording was retrieved by the team watching outside on March 23, 2021, without any information on the recording date being obtained. © Institute of Human Adaptation

He appeared three days ago near a mine copper : a giant chasm It was just discovered in the Atacama Desert, Chile. L ‘huge volcano crater Its diameter is about 25 meters, and its depth is 200 meters. Fortunately, no damage was observed to the infrastructure or to the staff. Everything was secured and activity on the site was suspended of course, but the reason for this has not yet been determined. collapse. Because if the process that is at its origin is generally known, then the mining activity that takes place on the site can be the direct cause.

Everything is caused by water seeping into the rock

These craters can form when water (especially rain) seeps into rocks. with Stripping and the Eat because of the water, carbonate rocks (Like the limestone or dolomite) little by little melts, creating hollows or voids: this is the process of alteration. When the water then recedes, the rocky roof can collapse under its own weight: a huh Forms ! These cavities range from a few centimeters to tens of meters in diameter, and the same for depths that can reach hundreds of meters, like what just happened in Chile!

Most of the time, everything is done slowly: chemical dissolution takes time and, little by little, the rocks are sagging with the water level also progressing slowly. A special role can be played by the change of season, with frost or drought. But when human activity intervenes, it’s even more complicated. Either the thawing occurs faster, due to the accumulation of rainwater, or if the water in the soil is removed quickly by pumping, it can lead to a sudden onset cracks.

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