The Characteristics of Rare Earth Elements from Kimberlites in China
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    Abstract:

    The total REE contents of kimberlites in China exhibit wide variations, ranging from 218.9 ppm to 1473.24 ppm. The kimberlites are characterized by simple linear REE distribution pattern showing extreme enrichment in LREE. The abundances of La and Yb are 180-1190 and 3-15 times those of chondritic respectively. La/Yb ratios range from 73.16 to 517.5. Principal mineral carrier of REE in kimberlites is perovskite (40-20000 times chondritic abundance).Apatite (15-5000 times chondritic abundance) is of subordinate importance.Phlogopite(0.25-27 times chondritic abundan- ce),pyrope (0.45一7.9 times chondritic abundance),Cr-spinet (0.2-1 times chondritic abundance) are low in REE. The REE contents of whole rocks of kimberlites and distribution patterns ire mainly controlled by perovskite.

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董振信,1992,我国金伯利岩稀土元素特征[J].岩石矿物学杂志,11(2):125~134. Dong Zhenxin Geological Museum of China,1992,The Characteristics of Rare Earth Elements from Kimberlites in China[J]. Acta Petrologica et Mineralogica,11(2):125~134.

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