| 河北南部峰峰煤田山西组沉积特征与沉积环境演化 |
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| 引用本文： | 权巨涛.河北南部峰峰煤田山西组沉积特征与沉积环境演化[J].中国煤炭地质,2010(11):10-12. |
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| 作者姓名： | 权巨涛 |
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| 作者单位： | 中国煤炭地质总局第一勘探局地质勘查院,河北邯郸056004 |
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| 摘 要： | 通过研究峰峰煤田山西组岩性和沉积构造特征,将山西组划分为四个沉积旋回,根据沉积环境的演化,分析了其对成煤作用的影响,认为区内山西组为典型的河控浅水三角洲沉积,该沉积体系中的聚煤作用较强,尤其是分流间洼地持续发展的部位形成了较厚煤层,由于分流河道的迁移作用,煤层分叉现象,而且成煤后遭河道冲刷导致变薄或缺失。
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| 关 键 词： | 山西组 沉积旋回 河控浅水三角洲 峰峰煤田 |
Shanxi Formation Sedimentary Features and Depositional Environment Evolution in Fengfeng Coalfield,Southern Hebei |
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| Quan Jutao.Shanxi Formation Sedimentary Features and Depositional Environment Evolution in Fengfeng Coalfield,Southern Hebei[J].Coal Geology of China,2010(11):10-12. |
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| Authors: | Quan Jutao |
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| Institution: | Quan Jutao(Geological Exploration Institute,the First Exploration Bureau,CNACG,Handan,Hebei 056004) |
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| Abstract: | Based on the Shanxi Formation lithologic and sedimentary structural characteristic analyses in the Fengfeng coalfield have divided the formation into 4 sedimentary cycles.According to depositional environment evolution,analyzed its impact on coal-forming process.Considered that Shanxi Formation in the area is a typical fluvial shallow water deltaic deposit,coal-accumulation is strong in the sedimentary system,especially thicker coal seams formed in the interdistributary depression sustainable development positions.Due to distributary channel migration,bifurcation of coal seam existed and channel scoring caused thinning or pinch-out of coal seam after the coal-forming. |
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| Keywords: | Shanxi Formation sedimentary cycle fluvial shallow water delta Fengfeng coalfield |
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