Rock glaciers, invisible giants are very sensitive to warming

by time news

2024-07-04 13:23:59

In Savoie, scientists are closely monitoring the acceleration of the movement of ancient but little-studied structures, consisting of rocks and ice.

On the heights of the road which leads to the Col de l’Iseran (Savoie), a spider crawler, a digger on four pointed legs, tries to make his way down the slope, between the snow and the stone. The machine came to rest on solid ground, and the drum attached to its arm was dropped, bringing it to the ground, and it slowly sank. A few meters back, the event was carefully followed by the team of Xavier Bodin, CNRS researcher and geomorphologist in the mountain areas, practice and regional laboratory (Edytem), attached to the Savoie Mont Blanc University.

« Drilling must reach a depth of around twenty meters, so that temperature and movement sensors can be installed. », you definitely. A delicate operation, and enthusiastically waiting for science. Beneath the pile of rocks at a height of 2,500 meters is a rock glacier, a little-known geological phenomenon. Its evolution is…

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