| 河南宜洛煤田晚石炭世地层中的异地煤 |
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| 引用本文： | 胡益成,李召明.河南宜洛煤田晚石炭世地层中的异地煤[J].地球科学,1998,23(6):589-594. |
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| 作者姓名： | 胡益成 李召明 |
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| 作者单位： | [1]中国地质大学资源学院 [2]河南省地矿厅 |
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| 摘 要： | 河南宜洛煤田晚石炭世太原组中的异地煤，不存在通常在煤层中见到的那种条带状－透镜状结构，而呈现出是一种粉粒状的、具有浊积层序特征的煤层。这种异地煤的底板，不是根土岩，而是含有腕足类动物化石和痕迹化石、具有海相成因的中－粗粒石英砂岩。根据煤层及其上覆、下伏岩层的沉积特征，以及与同层位的原地生成煤在空间上的展布规律，可以证明，异地煤是由于风暴回流将大量的泥炭物质携带到平均低潮面以下较深部位沉积下来的。在
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| 关 键 词： | 晚石炭世 异地煤 风暴作用 煤田 地层 煤系 |
LATE CARBONIFEROUS ALLOCHTHONOUS COAL OF YILUO COALFIELD IN HENAN PROVINCE |
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| Hu Yicheng,Liao Yuzhi.LATE CARBONIFEROUS ALLOCHTHONOUS COAL OF YILUO COALFIELD IN HENAN PROVINCE[J].Earth Science-Journal of China University of Geosciences,1998,23(6):589-594. |
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| Authors: | Hu Yicheng Liao Yuzhi |
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| Abstract: | Late Carboniferous allochthonous coal is characterized by silty grains and shows similar turbidity sequence, without strike_lenticular structure commonly shown in in_situ coal. The bottom strata of allochthonous coal, not including root earth, comprise coarse_grained quartz sandstones with Brachiopoda fossils and trace fossils, indicating marine environments. According to the depositional characters of coal seams, underlying and overlying rocks, and the relationship of the spatial distribution of contemporaneous in_situ coal seam, allochthonous coal is found to be deposited when a large number of Carboniferous materials were transported to the areas below the medium tidal level or more by storm events. The allochthonous coal formed in this situation belongs to coal, and is minable sometimes for its thickness. |
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| Keywords: | Late Carboniferous allochthonous coal storm event Yiluo coalfield |
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