A discovery of extremely REE-rich kimberlites: A possible new type of REE-deposit

Abstract

Two newly discovered Mesozoic Group II kimberlites in the southeastern margin of North China Craton show extremely high ΣREE contents (ranging from 1046 to 1869 ppm), which also higher than the nearby Weishan carbonatite and other REE-bearing rocks in China. We proposed that the possible of a new type of REE-deposit, and there is a wide range of potential prospecting area of the REE deposit in the southeast margin of NCC.