首页|新疆温宿巴依里煤矿稀土和钇(REY)的物质来源

新疆温宿巴依里煤矿稀土和钇(REY)的物质来源

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通过对新疆温宿县巴依里煤矿中煤、主岩和围岩中微量元素的分析,探讨新疆温宿巴依里煤矿中稀土等元素的来源及其作为煤矿伴生资源的利用前景.巴依里煤矿煤中的稀土元素配分模式可分为平坦型和重稀土富集型(H型)两类.前者REY主要来源于含煤盆地基底的片麻岩;后者部分来源于热液.含煤岩系的主岩中稀土元素分布模式可分为中稀土富集型(M型)和重稀土富集型(H型)两类,分别与REY部分来源于酸性陆地水和热液有关.在煤矿REY应用前景评价判别图,即关键元素百分比(REYdef,rel)-关键元素总量与过量元素总量比(Coutl)图解中,几乎所有的样品都落在有前景成矿区域.有一半的煤样具有较高的Ga含量,接近作为煤伴生资源的边界品位.这表明,巴依里煤矿中REY和Ga作为煤矿伴生资源具有很好的利用前景.
Sources of rare earth elements REE+Y (REY) in Bayili Coal Mine from Wensu County of Xinjiang, China
By analyses on the trace elements of coals, host-rocks and wall-rocks, this study aims to trace the sources and evaluate the utilization prospects of REE+Y (REY) in coals from Bayili Coal Mine (Wensu, Xinjiang, China). The distribution patterns of REY in the coals are divided into two groups, flat-type and heavy REE-enrichment type (H-type). The REY of the former was mainly from the gneisses of the basement of the coal-bearing basin, and that of the later was partly from hydrothermal solution. The host-rocks show two types of REY patterns, middle REE-enrichment type (M-type) and H-type, which are due to the injection of REY from acid terrestrial water and hydrothermal solution, respectively. Almost all the coal samples are plotted into the promising area on the diagram of percentage of critical elements (REYdef, rel) vs ratio of sum of critical elements to the sum of excessive elements (Coutl) and half of the coal samples have high contents of Ga closing to the cut-off grade of Ga deposit as by-product, which indicate that the REY and Ga in Bayili Coal Mine are of utilization prospects as by-product.

sourcerare earth elementsdistribution patterncoalWensu County (Xinjiang)

薛建强、柳建新、黄德志、周炜鉴、刘春明、操雨森、曹创华

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中南大学地球科学与信息物理学院,长沙 410083

中南大学教育部有色金属成矿预测与地质环境监测重点实验室,长沙 410083

湖南省地质调查院,长沙 410011

物质来源 稀土元素 配分型式 煤 温宿县(新疆)

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaOpen Research Fund Program of Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment MoniMinistry of Education,ChinaDepartment of Water Resources of Hunan Province,China

Nos.42004107420741652019YSJS13XSKJ2019081

2021

10.1016/S1003-6326(21)65719-9

中国有色金属学报(英文版)
中国有色金属学会

中国有色金属学报(英文版)

CSTPCDCSCDSCI
影响因子：1.183
ISSN：1003-6326
年,卷(期)：2021.31(10)
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