| 新疆早-中侏罗世聚煤期同沉积构造及其控煤效应 |
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| 引用本文： | 夏玉成, 王佟, 王传涛, 韦忙忙. 新疆早-中侏罗世聚煤期同沉积构造及其控煤效应[J]. 煤田地质与勘探, 2016, 44(2): 1-7. DOI: 10.3969/j.issn.1001-1986.2016.02.001 |
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| 作者姓名： | 夏玉成 王佟 王传涛 韦忙忙 |
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| 摘 要： | 新疆早-中侏罗世同沉积（期）构造活动自始至终与聚煤作用相伴，并直接影响含煤地层发育程度和煤层的原生厚度及结构。该期同沉积构造活动受特提斯-喜马拉雅地球动力学体系控制，其主要活动方式表现为同沉积逆冲断层和同沉积正断层，从而造成聚煤盆地基底沉降速度与幅度的明显差异。在其控制下，聚煤盆地的沉积中心和赋煤中心有自西向东、由南向北迁移的趋势；从含煤区尺度进行比较，聚煤强度与盆地基底总体沉降幅度呈负相关关系；从含煤盆地或煤田尺度进行比较，聚煤强度与盆地基底沉降速度之间的关系分别表现为正相关型、抛物线型及负相关型。
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| 关 键 词： | 早-中侏罗世聚煤期 同沉积构造 构造控煤 聚煤强度 新疆 |
| 收稿时间： | 2015-04-16 |
Synsedimentary structures of Early-Middle Jurassic coal-accumulating period and their control on coal in Xinjiang |
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| XIA Yucheng, WANG Tong, WANG Chuantao, WEI Mangmang. Synsedimentary structures of Early-Middle Jurassic coal-accumulating period and their control on coal in Xinjiang[J]. COAL GEOLOGY & EXPLORATION, 2016, 44(2): 1-7. DOI: 10.3969/j.issn.1001-1986.2016.02.001 |
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| Authors: | XIA Yucheng WANG Tong WANG Chuantao WEI Mangmang |
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| Abstract: | The contemporaneous tectonic activity accompanying the coal accumulation from the beginning to the end has direct effect on the development degree of coal-bearing strata, and the original thickness and structure of coal seams in the Early-Middle Jurassic in Xinjiang. The synsedimentary tectonic activity, controlled by the Tethys-Himalayan geodynamic system, mainly shows synsedimentary reverse thrust and normal faults in the period. As a result, the subsidence velocity and range of the basement of coal-accumulating basins differ obviously in the Early-Middle Jurassic period in Xinjiang. Under the control of the Tethys-Himalayan geodynamic system, the depocenter and coal-bearing center of the coal-accumulating basin in the Early-Middle Jurassic period in Xinjiang show a tendency of migration from the west to the east and from the south to the north. Comparing coal-bearing region scale, the coal-accumulating strength and the overall subsidence range of the basement of basin present a negative correlation; Comparing coal basin or coal field scale, the relationship between the coal-accumulating strength and the subsidence velocity of the basin basement present positive correlation, parabola and negative correlation respectively. |
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| Keywords: | Early-Middle Jurassic coal-accumulating period synsedimentary structure tectonic control on coal coal-accumulating strength Xinjiang |
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