From bottom to top, the average total rare earth content of the JL125-S17 core decreases because the upper part of the core is more enriched in hydrothermal components
From the bottom up, the average amount of rare earths in the JL125-S17 core decreased because the upper thermal fluid parts of the core were more rich. ...
From bottom to top, the average total REE content of jl125-s17 core decreases because the upper part of the core is more enriched in hydrothermal components