Scientists Identify Lithospheric Thickness as Key to Rare Earth Element Deposits
A recent study published in Nature Geoscience has revealed that the thickness of Earth's lithosphere plays a crucial role in the formation and distribution of CO2-rich magmas, which are significant sources of rare earth elements (REE). These elements are vital for modern technologies such as electric vehicles and wind turbines. The research utilized geochemical data from over 9,000 igneous rock samples and seismic imaging to establish a link between lithospheric thickness and magma chemistry. The study found that thicker lithospheres favor the formation of CO2-rich silicate magmas, which are associated with REE deposits. This discovery provides a new method for predicting the occurrence of REE deposits, which are essential for renewable energy technologies and the transition to low-carbon economies. 
