A new study revealed that the Earth’s core might be leaking heavy iron isotopes. Earth’s core is at the very center of Earth, and nobody knows what happens inside the molten core as the area is far beyond our reach—even beyond the technological methods.
Earth’s molten core lies beneath the rocky mantle, and it is located approximately 1,800 miles (2,900 km) away from the Earth’s crust (surface). The new research claims that the heavier isotopes of iron are migrating into the mantle, which is thousands of degrees cooler than the molten core. Furthermore, the light isotopes of iron that are located in the mantle are circulating back to the molten core.
The scientists and geologists often debate whether the two regions of our planet are exchanging any matter or not, and this study might prove—it does. If the molten core is leaking a tremendous amount of heavier iron isotopes to the upper mantle, then the mantle could be enriched with the heavier iron. Some researchers were able to gather the soil sample from mantle a few years ago, and they had discovered a considerable amount of iron in that sample.
The study is carried by Charles Lesher from Aarhus University in Denmark. Lesher is also known as the lead author and professor emeritus at UC Davis in geology faculty. Lesher and his team of researchers even explained how the iron isotopes could transfer from comparatively high-temperature region to lower and vice versa. They conducted various experiments under high pressure and temperature and analyzed the movement of iron isotopes.
However, the speculations are still theoretical, and Lesher believes that it could teach a lot in understanding the Earth’s interior. The study also helps to understand the debatable core-mantle interaction and further helps us to interpret seismic images in the mantle and molten core. Lesher and his team at some point even explained how those materials could migrate all the way up to the Earth’s crust.