地质学报（英文版）2000，Vol.74Issue(3)：605-612,8.
A Geochemical Study of an REE-rich Carbonatite Dyke at Bayan Obo, Inner Mongolia, Northern China
A Geochemical Study of an REE-rich Carbonatite Dyke at Bayan Obo, Inner Mongolia, Northern China
摘要
Abstract
An REE-rich carbonatite dyke was found in Dulahala, close to the Bayan Obo superlarge REE-Nb-Fe mineral deposit in Inner Mongolia, northern China. The REE content in the dyke varies greatly, from 1% up to 20% (wt), which might constitute rich REE ores. Light REEs in the carbonatite are enriched and highly fractionated relative to heavy REEs and there is no Eu anomaly. The REE and trace element distribution patterns of the carbonatite are identical to those of fine-grained dolomite marble which is the host rock of the Bayan Obo REE-Nb-Fe superlarge mineral deposit. This indicates a petrogenetic linkage between the REE-rich carbonatite and the mineralizations in this region.关键词
rare earth elements (REE)/carbonatite/Bayan OboKey words
rare earth elements (REE)/carbonatite/Bayan Obo分类
天文与地球科学引用本文复制引用
..A Geochemical Study of an REE-rich Carbonatite Dyke at Bayan Obo, Inner Mongolia, Northern China[J].地质学报（英文版）,2000,74(3):605-612,8.基金项目
This research is a part of the results of the joint project between the Chinese Academy of Sciences and the Royal Society (U.K.) and supported by fellowships from the Royal Society and British Council. The project was also supported by the National Natural Science Foundation of China (grant No. 49872032) for YXM, and the Ministry of Science and Technology of China (grant No. G1999043204) for ZYF. （U.K.）
