Discovery of helium the same age as the planet contributes to volcanology

Some Soviet physicists created a new instrument capable of discovering and quantifying even atoms of substances in samples of rocks, water and air. Using this to seek light helium led to the discovery of a very rare natural phenomenon: it turned out that the depths of the planet contain thousands of times more of it than the crust. This discovery has formed the basis of a new science, the isotope geochemistry of helium, which is now being widely used in various spheres of the Earth sciences. Thus, the content of light helium can be used to forecast volcanic eruptions; if the thermal waters of the slopes of volcanoes register an increased content of helium-3, that means that large masses of hot magma have risen from the depths of the seat of the volcano.