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| 利用XRD法探讨邢台隆东井田煤变质规律 | |
| 引用本文： | 张路锁,关英斌,李海梅,张国斌,赵平,李素,郑建,崔胜.利用XRD法探讨邢台隆东井田煤变质规律[J].煤田地质与勘探,2010,38(2). |
| 作者姓名： | 张路锁 关英斌 李海梅 张国斌 赵平 李素 郑建 崔胜 |
| 作者单位： | 1. 中国矿业大学地球科学与测绘工程学院,北京,100083;河北省煤田地质局,河北,石家庄,050085 2. 河北工程大学资源学院,河北,邯郸,056038 3. 河北省煤田地质局第二地质队,河北,邢台,054000 |
| 基金项目： | 国家重大基础研究发展计划(973计划)项目 |
| 摘 要： | 邢台隆东井田煤变质情况复杂,直接影响煤的工业利用。利用X-射线衍射(XRD)法探讨了区内不同变质程度煤的基本结构单元特征及煤变质规律。结果显示:垂向上,随着煤层埋藏深度的增加,层片间距d002值逐渐减小,层片堆积高度Lc和层片直径La值逐渐增大;平面上,离岩浆侵入体越近,煤层的层间距d002值越小,反之d002值越大。在煤种分布上,因受岩浆热源的影响,井田内煤种以旧城为中心向外呈带状分布,旧城附近为无烟煤,向外逐渐过渡为贫煤、瘦煤、焦煤、肥煤和气煤。区内煤变质作用主要受区域变质作用影响,并叠加了岩浆热变质作用。 |
| 关 键 词： | X-射线衍射 基本结构单元 岩浆热变质作用 隆东井田 |
Variety regularity of metamorphic coal of Longdong coalfield in Xingtai by X-ray diffraction method |
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| ZHANG Lusuo,GUAN Yingbin,LI Haimei,ZHANG Guobin,ZHAO Ping,LI Su,ZHENG Jian,CUI Sheng.Variety regularity of metamorphic coal of Longdong coalfield in Xingtai by X-ray diffraction method[J].Coal Geology & Exploration,2010,38(2). | |
| Authors: | ZHANG Lusuo GUAN Yingbin LI Haimei ZHANG Guobin ZHAO Ping LI Su ZHENG Jian CUI Sheng |
| Affiliation: | ZHANG Lusuo1,2,GUAN Yingbin3,LI Haimei3,ZHANG Guobin4,ZHAO Ping4,LI Su3,ZHENG Jian3,CUI Sheng3(1.College of Geoscience and Surveying Engineering,China University of Mining and Technology,Beijing 100083,China,2.Hebei Bureau of Coal Geological Exploration,Shijiazhuang 050085,3.College of Natural Resource,Hebei University of Engineering,Handan 056038,4.No.2 Exploration Team,Hebei Bureau of Coal Geological Exploration,Xingtai 054000,China) |
| Abstract: | In this paper, the character of basic structural unit and spatial-temporal variety regularity of metamorphic coals are studied through X-ray diffraction (XRD) analysis. In the vertical direction, as the burial depth increases,the d_(002) values decrease, whereas L_c and L_a values increase. In the level direction, d_(002) values are low when the coal seams are near the magma intrusion. On the contrary, these values are large when the coal seams are far away from the magma intrusion. Affected by magmatic heat sources, distribution of coal sorts assumes the old town as the center and takes the banding distribution outward. In the coalfield, it is found that the anthracite distributes nearby the old town and the coal sorts are lean coal, coking coal, fatty coal and gas coal outward. Coal metamorphism is mainly affected by regional metamorphism, also affected by telemagmatic metamorphism. |
| Keywords: | X-Ray diffracation basic structural unit magmatic thermal metamorphism Longdong coalfield |
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