| 潮水盆地侏罗系层序地层与聚煤规律研究 |
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| 引用本文： | 葛立刚,张志洪.潮水盆地侏罗系层序地层与聚煤规律研究[J].煤田地质与勘探,1998,26(5):14-18. |
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| 作者姓名： | 葛立刚 张志洪 |
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| 作者单位： | 中国地质大学，甘肃煤田地质局 |
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| 摘 要： | 运用层序地层学和沉积体系分析相结合的方法，对潮水盆地侏罗系进行综合沉积学研究，识别出各级层序界面特征，将侏罗系划分为２个构造层序、３个一级层序、４个二级层序、８个三级层序；发现各级层序地层单元对富煤带的控制因素是古气候条件、构造运动和与之密切相关的沉积环境，但对不同级别的层序地层单元控制因素具有主次之分。沉积体系分析结果表明，潮水盆地侏罗系的富煤单元主要发育于冲积扇沉积体系和扇三角洲沉积体系。
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| 关 键 词： | 层序地层 岩相分析 聚煤作用 侏罗纪 潮水盆地 |
STUDY ON SEQUENCE STRATIGRAPHY AND COAL ACCUMULATING REGULARITIES OF JURASSIC SYSTEM IN CHAOSHUI BASIN |
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| Ge Ligang,Chen Zhonghui,Wu Fadong,Zhang Shouliang.STUDY ON SEQUENCE STRATIGRAPHY AND COAL ACCUMULATING REGULARITIES OF JURASSIC SYSTEM IN CHAOSHUI BASIN[J].Coal Geology & Exploration,1998,26(5):14-18. |
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| Authors: | Ge Ligang Chen Zhonghui Wu Fadong Zhang Shouliang |
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| Institution: | Ge Ligang Chen Zhonghui Wu Fadong Zhang Shouliang (China University of Geosciences) Zhang Zhihong Xu Tailun (Gansu Coal Fields Geological Bureau) |
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| Abstract: | Based on results of sequence stratigraphy and depositional system analysis,Jurassic system in Chaoshui basin is devided into two tectonic sequences,three first order sequences,four second order sequences and eight third order sequences.It is showed that paleoclimate condition,tectonic movement and sedimentary emvironment are the main control factors of coal enrichment zone contribution,and the units of coal enrichment are located in fan delta depositional system and alluvial fan depositional system. |
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| Keywords: | sequence stratigraphy lithofacies analysis coal accumulation process Jurassic period Chaoshui basin |
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