Ref: The original study published in Nature "The tremendous potential of deep-sea mud as a source of rare-earth elements" https://www.nature.com/articles/s4159

Ref: The original study published in Nature "The tremendous potential of deep-sea mud as a source of rare-earth elements" https://www.nature.com/articles/s41598-018-23948-5 https://www.nature.com/articles/s41598-018-23948-5