Mineral matter and potentially hazardous trace elements in coals from Qianxi Fault Depression Area in southwestern Guizhou, China

doi:10.1016/j.coal.2003.07.001

	Mineral matter and potentially hazardous trace elements in coals from Qianxi Fault Depression Area in southwestern Guizhou, China
	Zhang, JY ; Ren, DY ; Zhu, YM ; Chou, CL ; Zeng, RS ; Zheng, BS
刊名	INTERNATIONAL JOURNAL OF COAL GEOLOGY
	2004-01-15
卷号	57 期号:1 页码:49-61
关键词	potentially hazardous trace elements coal low-temperature hydrothermalism southwestern Guizhou
ISSN号	0166-5162
DOI	10.1016/j.coal.2003.07.001
文献子类	Article
英文摘要	Mineralogy, coal chemistry and 21 potentially hazardous trace elements (PHTEs) of 44 coal samples from the Qianxi Fault Depression Area (QFDA) in southwestern Guizhou province, China have been systematically studied. The major minerals in coals studied are quartz, kaolinite, illite, pyrite, calcite, smectite, marcasite and accessory minerals, including rutile, dolomite, siderite, gypsum, chlorite, melanterite, apatite, collophane and florencite. The SiO2 content shows a broad variation (0.8-30.7%). A high SiO2 content in Late Permian coals reflects their enrichment in quartz. The Al2O3 content varies from 0.8% to 13.4%, Fe2O3 from 0.2% to 14.6%, CaO from <0.1% to 11.9% and the contents of other oxides are relatively low. The relationship between the major oxides and the ash content of coals from high to low is in the order of Si>Al>K>Ti>Na>Mg>Ca>Fe>S. A comparison with World coal averages shows that the Late Permian coals in QFDA are highly enriched in As, Hg, F and U, and are slightly enriched in Mo, Se, Th, V and Zn. The Late Triassic coals in QFDA are highly enriched in As and Hg, and are slightly enriched in Mo, Th and U. The concentrations of As, Hg, Me, Se, Tl and Zn in the QFDA coal are higher than other Guizhou coal and Liupanshui coal nearby.
WOS关键词	GEOLOGICAL CONTROLS ; GEOCHEMISTRY ; PROVINCE ; LIGNITE ; HEALTH
WOS研究方向	Energy & Fuels ; Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000188814300003
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/79547]
专题	中国科学院地质与地球物理研究所
通讯作者	Zhang, JY
作者单位	1.Huazhong Univ Sci & Technol, Natl Lab Coal Combust, Wuhan 430074, Peoples R China 2.China Univ Min & Technol, Beijing 100083, Peoples R China 3.China Univ Min & Technol, Xuzhou 221008, Peoples R China 4.Illinois State Geol Survey, Champaign, IL 61820 USA 5.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 6.Chinese Acad Sci, Inst Geochem, Guiyang 550002, Peoples R China
推荐引用方式 GB/T 7714	Zhang, JY,Ren, DY,Zhu, YM,et al. Mineral matter and potentially hazardous trace elements in coals from Qianxi Fault Depression Area in southwestern Guizhou, China[J]. INTERNATIONAL JOURNAL OF COAL GEOLOGY,2004,57(1):49-61.
APA	Zhang, JY,Ren, DY,Zhu, YM,Chou, CL,Zeng, RS,&Zheng, BS.(2004).Mineral matter and potentially hazardous trace elements in coals from Qianxi Fault Depression Area in southwestern Guizhou, China.INTERNATIONAL JOURNAL OF COAL GEOLOGY,57(1),49-61.
MLA	Zhang, JY,et al."Mineral matter and potentially hazardous trace elements in coals from Qianxi Fault Depression Area in southwestern Guizhou, China".INTERNATIONAL JOURNAL OF COAL GEOLOGY 57.1(2004):49-61.