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| 南华北盆地石炭-二叠系沉积环境与聚煤规律研究 |
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刁玉杰,魏久传,曹 红
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山东科技大学地质科学与工程学院
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| 基金项目:山东省自然科学基金项目 |
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| Sedimentary Environment and Coal Accumulation of the Carboniferous and Permian in the Southern North China Basin |
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DIAO Yujie1, WEI Jiuchuan, CAO Hong2
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1.College of Earth Science Technology,Shandong University of Science and Technology;2.Center for Hydrogeology and Environmental Geology,CGS
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| Four major sedimentary systems of the Carboniferous and Permian in the Southern North China (SNC) Basin were identified in sedimentological and depositional features,such as trace fossil,silt body shape,vertical sequence and logging curve. In addition,the sedimentary facied and typical sequences of sedimentary systems were analyzed in principles of sedimentology and coalfield geology,Furthermore,geological patterns of the coal accumulation,paleogeography and tectonic setting in each geological stage were reconstructed. Corresponding to sedimentary system and facies,there was no coal accumulation in the late carboniferous,while Shihezi Formation of the Middle Permian is the best coal accumulation period. And the delta front and sea-water swamp (the gulf) facies were the best environment for coal accumulation,which are meaningful for coalfield prediction and exploration in the Southern North China (SNC) Basin. |
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