| 豫西下冶地区上、下石盒子组三角洲旋回沉积与演化特征 |
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| 引用本文： | 胡斌,吴海东,刘顺喜,宋慧波,郑德顺.豫西下冶地区上、下石盒子组三角洲旋回沉积与演化特征[J].中国煤炭地质,2010(1):1-5. |
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| 作者姓名： | 胡斌 吴海东 刘顺喜 宋慧波 郑德顺 |
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| 作者单位： | 河南理工大学资源环境学院; |
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| 基金项目： | 河南省科技计划项目(092300410167); 河南省高校科技创新团队项目(2008IRTSTHN009); 河南理工大学博士基金资助项目(B2009-93)联合资助 |
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| 摘 要： | 中二叠世至晚二叠世早期,豫西下冶地区发育了多旋回海退型河控为主的三角洲沉积体系,根据纵向上沉积特征的变化规律和从建设相开始到破坏相结束的识别标志以及旋回沉积规模,可将本区的三角洲旋回沉积划分为2个大旋回和8个中型旋回。纵向上旋回沉积的变化规律显示,该地区中二叠世至晚二叠世的沉积环境演化经历了三角洲平原—三角洲前缘—三角洲平原—三角洲前缘—前三角洲—三角洲平原的发展过程。在豫西下冶地区的三角洲旋回沉积中,厚煤层不发育,在各个煤段仅可见少量的薄煤层或煤线,这与本区在中二叠世至晚二叠世的古地理面貌(中条山和岱嵋寨隆起)及周期性分流河道的迂回变迁而造成较强的河流冲刷作用有关。
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| 关 键 词： | 三角洲体系 旋回沉积 沉积环境 二叠系 豫西地区 |
Upper and Lower Shihezi Formations Deltaic Cyclic Sedimentation and Evolutional Characteristics in Xiaye Area, Western Henan |
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| Hu Bin,Wu Haidong,Liu Shunxi,Song Huibo , Zheng Deshun.Upper and Lower Shihezi Formations Deltaic Cyclic Sedimentation and Evolutional Characteristics in Xiaye Area, Western Henan[J].Coal Geology of China,2010(1):1-5. |
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| Authors: | Hu Bin Wu Haidong Liu Shunxi Song Huibo Zheng Deshun |
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| Institution: | Hu Bin,Wu Haidong,Liu Shunxi,Song Huibo , Zheng Deshun(School of Resources , Environment Engineering,Henan Polytechnic University,Jiaozuo,Henan 454003) |
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| Abstract: | During the Middle Permian to early Late Permian,a polycyclic regressive mainly fluvial-dominated deltaic sedimentary system was developed in the Xiaye area,western Henan.Based on longitudinal pattern of sedimentary characteristic variations and identification marks,cyclic sedimentation scope from the beginning of constructive facies to the end of destructive facies,the deltaic cyclic sedimentation in the area can be divided into two megacycles and eight mesocycles.The longitudinal pattern of sedimentary cha... |
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| Keywords: | delta system cyclic sedimentation sedimentary environment Permian System western Henan area |
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