山西大同塔山井田煤中Sr的赋存特征
P618; 大同煤田石炭-二叠系煤层中广泛分布有印支期和燕山期火成岩,使煤层发生接触变质作用.以往的研究表明塔山井田 5222巷煤中微量元素Sr异常富集,接触变质煤和正常煤中Sr含量最大值分别为 3067 μg/g和 2729 μg/g,平均含量为 1165 μg/g,是世界煤中Sr平均含量的 10.6倍,但其赋存特征尚不清楚.通过对塔山井田 5222巷煤和辉绿岩岩墙进行系统采样,综合运用电感耦合等离子体质谱(ICP-MS)、X射线荧光光谱(XRF)、带能谱的扫描电子显微镜(SEM-EDS)对样品进行Sr元素和主量元素含量测定及矿物学分析,结合元素相关性分析和逐级化学提取等方法,研究了煤中Sr...
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| Published in | 煤炭科学技术 Vol. 52; no. z1; pp. 164 - 173 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
原位改性采矿教育部重点实验室,山西太原 030024
01.06.2024
陆相页岩油气成藏及高效开发教育部重点实验室,黑龙江大庆 163318%太原理工大学 矿业工程学院,山西太原 030024 太原理工大学 矿业工程学院,山西太原 030024%太原理工大学 矿业工程学院,山西太原 030024 煤与煤系气地质山西省重点实验室,山西太原 030024%阿尔伯塔大学 化学与材料工程学院,阿尔伯塔埃德蒙顿T6G 1H9%东北石油大学 非常规油气研究院,黑龙江大庆 163318 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-2336 |
| DOI | 10.13199/j.cnki.cst.2023-0022 |
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| Abstract | P618; 大同煤田石炭-二叠系煤层中广泛分布有印支期和燕山期火成岩,使煤层发生接触变质作用.以往的研究表明塔山井田 5222巷煤中微量元素Sr异常富集,接触变质煤和正常煤中Sr含量最大值分别为 3067 μg/g和 2729 μg/g,平均含量为 1165 μg/g,是世界煤中Sr平均含量的 10.6倍,但其赋存特征尚不清楚.通过对塔山井田 5222巷煤和辉绿岩岩墙进行系统采样,综合运用电感耦合等离子体质谱(ICP-MS)、X射线荧光光谱(XRF)、带能谱的扫描电子显微镜(SEM-EDS)对样品进行Sr元素和主量元素含量测定及矿物学分析,结合元素相关性分析和逐级化学提取等方法,研究了煤中Sr的赋存状态.煤中 Sr与 P2O5 的显著相关性和逐级化学提取试验得出,Sr可能主要与含磷矿物(磷灰石)和硅酸盐矿物(黏土)结合;扫描电镜分析得出这 2类矿物紧密交互共生,磷灰石的种类包括呈六方柱形的氟磷灰石和嵌入在黏土矿物中呈细小分散粒状的羟基磷灰石. |
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| AbstractList | P618; 大同煤田石炭-二叠系煤层中广泛分布有印支期和燕山期火成岩,使煤层发生接触变质作用.以往的研究表明塔山井田 5222巷煤中微量元素Sr异常富集,接触变质煤和正常煤中Sr含量最大值分别为 3067 μg/g和 2729 μg/g,平均含量为 1165 μg/g,是世界煤中Sr平均含量的 10.6倍,但其赋存特征尚不清楚.通过对塔山井田 5222巷煤和辉绿岩岩墙进行系统采样,综合运用电感耦合等离子体质谱(ICP-MS)、X射线荧光光谱(XRF)、带能谱的扫描电子显微镜(SEM-EDS)对样品进行Sr元素和主量元素含量测定及矿物学分析,结合元素相关性分析和逐级化学提取等方法,研究了煤中Sr的赋存状态.煤中 Sr与 P2O5 的显著相关性和逐级化学提取试验得出,Sr可能主要与含磷矿物(磷灰石)和硅酸盐矿物(黏土)结合;扫描电镜分析得出这 2类矿物紧密交互共生,磷灰石的种类包括呈六方柱形的氟磷灰石和嵌入在黏土矿物中呈细小分散粒状的羟基磷灰石. |
| Abstract_FL | Datong Coalfield was intruded by igneous intrusions in both the Indosinian(Late Permian to the end of the Triassic)and the Yanshan(Late Jurassic to the Early Cretaceous)periods,which caused contact metamorphism of the coal seam.Previous studies have shown that Sr is significantly enriched in coal from the 5222 tunnel of the Tashan coal mine.The maximum concentration of Sr in thermally-altered and unaffected coal is 3067 μg/g and 2729 μg/g respectively,and the average concentration of Sr is 1165 μg/g,which is 10.6times of the world average level in hard coal.However,the modes of occurrence of Sr in the Tashan coal still remain unclear.Samples in the 5222 tunnel including coal and intrusive rock were systematically collected.Inductively coupled plasma mass spectrometry(ICP-MS)and X-ray fluorescence spectrometry(XRF)were applied to elucidate Sr concentration variations in the sample;correlation analysis,scanning electron microscope with energy spectrum(SEM-EDS),and sequential chemical extraction procedure(SCEP)were carried out to reveal the occurrence modes of Sr,as well as the characteristics of Sr-bearing minerals.The results demonstrated that Sr exhibits a strong correla-tion with P2O5 in coal;Sr mainly occurs in phosphate(apatite)and clay minerals that are intimately associated;apatite was distinguished as fluorapatite in the shape of hexagonal columns and hydroxyapatite in the shape of fine scattered particles embedded in the clay minerals. |
| Author | 高文萱 阎纪伟 门昌钰 宋晓夏 李伟 马宏涛 |
| AuthorAffiliation | 太原理工大学 矿业工程学院,山西太原 030024%太原理工大学 矿业工程学院,山西太原 030024;煤与煤系气地质山西省重点实验室,山西太原 030024%阿尔伯塔大学 化学与材料工程学院,阿尔伯塔埃德蒙顿T6G 1H9%东北石油大学 非常规油气研究院,黑龙江大庆 163318;陆相页岩油气成藏及高效开发教育部重点实验室,黑龙江大庆 163318%太原理工大学 矿业工程学院,山西太原 030024;原位改性采矿教育部重点实验室,山西太原 030024 |
| AuthorAffiliation_xml | – name: 太原理工大学 矿业工程学院,山西太原 030024%太原理工大学 矿业工程学院,山西太原 030024;煤与煤系气地质山西省重点实验室,山西太原 030024%阿尔伯塔大学 化学与材料工程学院,阿尔伯塔埃德蒙顿T6G 1H9%东北石油大学 非常规油气研究院,黑龙江大庆 163318;陆相页岩油气成藏及高效开发教育部重点实验室,黑龙江大庆 163318%太原理工大学 矿业工程学院,山西太原 030024;原位改性采矿教育部重点实验室,山西太原 030024 |
| Author_FL | MA Hongtao GAO Wenxuan LI Wei YAN Jiwei MEN Changyu SONG Xiaoxia |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.13199/j.cnki.cst.2023-0022 |
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| DocumentTitle_FL | Occurrence characteristics of Sr in coal from Tashan Coal Mine in Datong,Shanxi Province |
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| Keywords | apatite 塔山井田 煤 赋存状态 coal modes of occurrence Tashan coal mine 磷灰石 Sr |
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| Publisher | 原位改性采矿教育部重点实验室,山西太原 030024 陆相页岩油气成藏及高效开发教育部重点实验室,黑龙江大庆 163318%太原理工大学 矿业工程学院,山西太原 030024 太原理工大学 矿业工程学院,山西太原 030024%太原理工大学 矿业工程学院,山西太原 030024 煤与煤系气地质山西省重点实验室,山西太原 030024%阿尔伯塔大学 化学与材料工程学院,阿尔伯塔埃德蒙顿T6G 1H9%东北石油大学 非常规油气研究院,黑龙江大庆 163318 |
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| Title | 山西大同塔山井田煤中Sr的赋存特征 |
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