Scientists have discovered a giant accumulation of molten rock beneath Tuscany, measuring 6,000 cubic kilometers. While it could potentially contribute to the formation of a volcano in the future, this phenomenon currently poses no threat.
An international team of geologists from the University of Geneva (UNIGE), the Institute of Geosciences and Earth Resources (CNR-IGG), and the National Institute of Geophysics and Volcanology (INGV) made an astonishing discovery. Beneath the picturesque landscapes of Tuscany, they uncovered a vast magmatic lake containing about 6,000 cubic kilometers of molten rock, as reported by Phys.org.
In addition to its fundamental scientific significance, this discovery opens new horizons for geological exploration. It promises faster and more cost-effective methods for locating valuable resources such as geothermal reservoirs, lithium, and rare earth elements, the formation of which is closely related to deep magmatic systems.
Although such a magmatic body could potentially contribute to the formation of a supervolcano on geological timescales, it is completely safe today. Matteo Lupi, an associate professor in the Earth Sciences Department at UNIGE who led the research, noted: "We knew that this region, stretching from north to south through Tuscany, is geothermally active, but we did not realize it contained such a large volume of magma, comparable to that of supervolcanic systems like Yellowstone."
The detection of this giant molten mass was made possible by an innovative method—ambient noise tomography. This technology allows researchers to "see through" the Earth's crust using natural vibrations from the environment, such as those from ocean waves, wind, or even human activity, Phys.org explains.
When these signals pass through the Earth's interior, they are recorded by highly precise seismic sensors located on the surface. About 60 such instruments were used in this study, and the unusually low speed of seismic wave propagation indicated the presence of molten material, or magma.
Lupi emphasized that the results obtained are important for both fundamental research and practical applications. For example, they will assist in the search for geothermal reservoirs or deposits rich in lithium and rare earth elements, which are critically important for electric vehicle battery production. "In addition to significant scientific interest, this research shows that tomography, which allows for rapid and low-cost exploration of the Earth's interior, can become a useful tool for energy transformation," concluded the scientist.
Other Interesting Scientific Discoveries
Recently, scientists conducted a thorough check of gravity and confirmed that it operates entirely in accordance with the predictions of Newton and Einstein. Researchers demonstrated that the force of attraction weakens with distance, as Isaac Newton described in his law of inverse square dependence.
It was also revealed that caves containing millennia-old traces of human life have been discovered beneath the desert. Scientists found that Umm Jirsan—a large lava tube located 125 km north of Medina—has served as a refuge for herders for approximately 7,000 years.
