| 峰峰矿区通二井田煤镜质组有限应变特征及其应用 |
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| 引用本文： | 胡宝林,刘燕学,葛传周,何胜利.峰峰矿区通二井田煤镜质组有限应变特征及其应用[J].地质科学,2004,39(2):207-213. |
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| 作者姓名： | 胡宝林 刘燕学 葛传周 何胜利 |
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| 作者单位： | 1. 安徽理工大学, 安徽, 淮南, 232001;2. 中国地质大学能源系, 北京, 100083;3. 峰峰矿务局, 河北, 邯郸, 056200 |
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| 摘 要： | 利用MPV—COMPACT型显微光度计对峰峰矿区通二井田煤镜质组反射率进行较系统的测试,发现井田内煤 3个光轴体主轴互相垂直,最大反射率轴倾角多数集中在 68°～69°之间,倾伏向有 3个方向,即近 280°、近 90°和近 180°。测区内煤的镜质组反射率椭球体的变形特征属于拉长型应变和压扁型应变。该井田煤镜质组反射率椭球体有限应变特征分析结果表明在煤系地层中,煤的最大镜质组反射率的方位除与区域构造应力场的作用有关外,还与其所处的局部构造位置有关。在断层附近,反射率Romax和Romin的差值随着距断层的距离增加而减小,且在断层面的两盘发生突变。这一特征有助于煤矿井下构造的预测。
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| 关 键 词： | 镜质组反射率 各向异性 应变 应力场 |
| 文章编号： | 0563-5020(2004)02-0207-07 |
| 收稿时间： | 2002-05-27 |
| 修稿时间： | 2002年5月27日 |
CHARACTERS OF FINITE STRAIN OF VITRINITE AND APPLICATION IN THE TONG'ER COAL MINE, FENGFENG MINING AREA, HEBEI |
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| Hu Baolin,Liu Yanxue,Ge Chuanzhou,He Shengli.CHARACTERS OF FINITE STRAIN OF VITRINITE AND APPLICATION IN THE TONG''''ER COAL MINE, FENGFENG MINING AREA, HEBEI[J].Chinese Journal of Geology,2004,39(2):207-213. |
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| Authors: | Hu Baolin Liu Yanxue Ge Chuanzhou He Shengli |
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| Institution: | 1. Anhui University of Science and Technology, Huainan, Anhui 232001;2. China University of Geosciences, Beijing 100083;3. Fengfeng Coal Mining Bureau, Handan, Hebei 056200 |
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| Abstract: | The vitrinite reflectance of coal in the Tong’er Coal Mine was systematically measured by using MPV COMACT microphotometer. The three optical axes of the vitrinite in the mining area were mutually perpendicular. The dip angle of maximum reflectance mostly focused on 68°～69°, with three direction being about 280°, 90° and 180°, respectively. The ellipsoidal deformation of reflectance in the studied area was characterized by extend type or flaser type strain. The result indicated that the orientation of maximum vitrinite reflectance might be related with the local structural position of the sample in addition to the stress field of the regional tectonics. The differential values between Romax and Romin decreased with increasing of the distance to the fault, and a sudden change occurred near the both sides of the fault, which might be helpful for the prediction of faults in the coal mining. |
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| Keywords: | Vitrinite reflectance Anisotropy Strain Stress field |
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