[Humans Are Free]: At school, we are thought that Earth is divided into three layers, which are the cortex, the mantle and the nucleus, which in turn is divided into an internal and external nucleus.
A basic and accurate scheme, but that nevertheless leaves out other subtler layers that scientists are now beginning to identify in the deep interior of our planet.
A team of geologists has detected a previously unknown layer in the middle of the Earth’s mantle, whose characteristics are reminiscent of those of the planet’s surface.
A new study published in the Journal of Science, authored by geophysicists Jessica Irving and Wenbo Wu of Princeton University, in collaboration with Sidao Ni of the Institute of Geodesy and Geophysics of China, describes how researchers used data from the seismic waves of a large earthquake in Bolivia to locate, at a depth of 660 kilometers, a new region inside the Earth, one that has left them speechless: it features a mountain range, and plains, very similar to those on the surface of our planet....<<<Read The Full Article Here>>>...