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Intrusive style, three-dimensional morphology of carbonatite and REE potential resources in the Bayan Obo giant deposit, Inner Mongolia

文献类型：期刊论文

作者Fan HongRui1,5; Xu Ya4,5; Yang KuiFeng1,5; Zhang JiEn3,5; Li XiaoChun1,5; Zhang LiLi4; She HaiDong1,5; Liu ShuangLiang1,5; Xu XingWang1,5; Huang Song4
刊名ACTA PETROLOGICA SINICA
出版日期2022-10-01
卷号38期号:10页码:2901-2919
ISSN号1000-0569
关键词Carbonatite Intrusive style Three-dimensionalmorphology REE potential resources Bayan Obo REE-Nb-Fe deposit
DOI10.18654/1000.0569/2022.10.01
英文摘要Rare earth elements ( REE) have been considered as critical metals in modern society. China is dominated in world REE resources, with most of the REE concentrated in the Bayan Obo deposit. Despite its economic importance, the mechanism of REE mineralization, the spatial distribution of orebodies, and REE potential resources have long been contentious in the Bayan Obo deposit, which hinders further exploration and utilization of REE. Combining geological, geochemical and geophysical investigations, this paper studies the intrusive style, evolution process and three-dimensional morphology of ore-related carbonatite, and the enrichment mechanism of REE. In addition, the REE potential resources are estimated. In the Bayan Obo district, the Paleo-to Mesoproterozoic sedimentary rocks experienced compression. As a result, the primary horizontal rocks have been changed to E-W trending, steeply inclined strata, which provides suitable channels for ore-related carbonatitic melts. The ore-related carbonatite was intruded at ca. 1. 3Ga, and evolved from ferric carbonatite, to magnesian carbonatite, and further to calcic carbonatite. The ore -related carbonatite contains high contents of REE, and thus it can be taken as REE orebody. The deposit experienced hydrothermal overprint in the Paleozoic time, during which the REE were mobilized but the REE resources were not enhanced. According to high magnetic and low resistance anomaly, the shape of the ore -related carbonatite is defined, i. e., the intruding center is located between the East Pit and Main Pit, and the melts moved toward west and east along the tectonic foliation. According to the volume, density and REE contents of ore -related carbonatite, the RE2O3 potential resources is estimated to reach 333 million tons. This number is much larger than previously thought. It is proposed that further exploration is highly required to accurately determine the real REE reserve of the Bayan Obo deposit.
WOS关键词DEEP-SEA MUD ; ACCUMULATION
WOS研究方向Geology
语种英语
出版者SCIENCE PRESS
WOS记录号WOS:000905324300001
源URL[http://ir.iggcas.ac.cn/handle/132A11/106845]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
地质与地球物理研究所_岩石圈演化国家重点实验室
地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Fan HongRui
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Baotou Iron & Steel Grp Co Ltd, Baotou 014000, Peoples R China
3.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China
5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Fan HongRui,Xu Ya,Yang KuiFeng,et al. Intrusive style, three-dimensional morphology of carbonatite and REE potential resources in the Bayan Obo giant deposit, Inner Mongolia[J]. ACTA PETROLOGICA SINICA,2022,38(10):2901-2919.
APA Fan HongRui.,Xu Ya.,Yang KuiFeng.,Zhang JiEn.,Li XiaoChun.,...&Liu Fong.(2022).Intrusive style, three-dimensional morphology of carbonatite and REE potential resources in the Bayan Obo giant deposit, Inner Mongolia.ACTA PETROLOGICA SINICA,38(10),2901-2919.
MLA Fan HongRui,et al."Intrusive style, three-dimensional morphology of carbonatite and REE potential resources in the Bayan Obo giant deposit, Inner Mongolia".ACTA PETROLOGICA SINICA 38.10(2022):2901-2919.

入库方式： OAI收割

来源：地质与地球物理研究所

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