| 承德地区石炭-二叠系层序岩相古地理 |
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| 引用本文： | 朱宝存,唐书恒,张佳赞,张钊.承德地区石炭-二叠系层序岩相古地理[J].中国煤炭地质,2009(1):5-8. |
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| 作者姓名： | 朱宝存 唐书恒 张佳赞 张钊 |
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| 作者单位： | 中国地质大学,北京100083 |
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| 基金项目： | 国家973计划课题（2006CB202202）、国家863计划专题课题（2006AA062235）、国家自然科学基金项目（40772096）和教育部新世纪优秀人才支持计划（NCET-05-0211）. |
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| 摘 要： | 将层序地层学方法应用于岩相古地理研究中，首先建立承德地区石炭一二叠系层序地层格架，然后以四级层序为基本编图单元，编制岩相古地理图。分析了石炭一二叠系的沉积演化特征，讨论了层序地层、岩相古地理与聚煤作用的关系。在研究区识别出2个三级层序、5个四级层序、8个五级层序；揭示了海平面升降变化对成煤沼泽发育的控制，认为层序DS1的海侵或海退最大点处的四级层序Ⅲ控制了研究区两个主采煤层的发育。该结论对该区聚煤规律的研究和煤炭资源预测有一定的参考价值。
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| 关 键 词： | 层序地层 岩相古地理 石炭-二叠系 聚煤规律 承德地区 |
Sequence-based Lithofacies Paleogeography of Permo-Carboniferous in Chengde Area |
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| Zhu Baocun,Tang Shuheng,Zhang Jiazan and Zhang Zhao.Sequence-based Lithofacies Paleogeography of Permo-Carboniferous in Chengde Area[J].Coal Geology of China,2009(1):5-8. |
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| Authors: | Zhu Baocun Tang Shuheng Zhang Jiazan and Zhang Zhao |
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| Institution: | (School of Energy Resources, China University of Geosciences, Beijing, 100083) |
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| Abstract: | The sequence stratigraphy is applied to the research of lithofacies paleogeography in the paper. Fourth-order sequence selected as mapping unit, the lithofacies paleogeography maps of Chengde area were made, based on the sequence stratigraphic framework of Permo-Carboniferous. Sedimentary evolution of the area and the relationship between sequence stratigraphy, lithofacies paleogeography, and coal accumulation were studied. It shows that： 1） two third-order sequences, five fourth-order sequences and eight fifth-order sequences are recognized; 2） sea level changes control the development of coal-forming swamps; 3） fourth-order sequence Ⅲ controls the development of two main coal seams. The results will contribute to future research on coal accumulation and coal resources prediction. |
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| Keywords: | sequence stratigraphy lithofacies paleogeography Permo-Carboniferous coal accumulation pattern Chengde area |
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