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华北地台寒武纪鲕粒沉积学与层序地层学综合研究

发布时间:2021-01-25 07:50
  华北地台属于中朝板块,为东西长约1500 km,南北长约1000 km的巨大克拉通台地。华北很多区域(如山西、河北以及内蒙古等)露头的都是研究寒武系上部鲕粒滩沉积和划分层序地层的很好的剖面。一般而言,华北地台寒武系苗岭统以普遍发育鲕粒滩为特征,而芙蓉统则主要由风暴沉积的竹叶状砾屑灰岩以及生物丘组成。但本次研究却在岢岚剖面苗岭统和芙蓉统均发现了厚层鲕粒滩沉积,因其特殊的沉积序列而被选为论文的研究对象。根据最新寒武纪年代地层划分,以沉积相变化所反映的沉积趋势及旋回性为依据,岢岚剖面的寒武系可划分为7个三级层序(DS1-DS7)。研究剖面出露寒武系苗岭统的徐庄组、张夏组和崮山组,以及芙蓉统的长山组和凤山组,沉积相从徐庄组混合潮坪相向上变为缓坡型碳酸盐岩沉积(张夏组、崮山组、长山组和凤山组),沉积层序由“TST+CS+HST”转变为“CS+HST”,这一过程表明了碳酸盐台地从未成熟期向成熟期的转变。寒武系下部与太古代变质岩呈不整合接触,上部与奥陶系冶里组呈平行不整合接触。研究区寒武系钙质泥岩组成的凝缩段,由泥晶灰岩组成的深—中缓坡相,以及苗岭统、芙蓉... 

【文章来源】:中国地质大学(北京)北京市 211工程院校 教育部直属院校

【文章页数】:134 页

【学位级别】:博士

【文章目录】:
摘要
abstract
Chapter1 Introduction
    1.1 Overview and Topic Selection
    1.2 Sequence Stratigraphy:New Advancement
    1.3 Cambrian Calcite Grains
        1.3.1 Cambrian Calcite Non-skeletal Grains
            1.3.1.1 Coated Grains
            1.3.1.2 Peloids
            1.3.1.3 Grain Aggregate
            1.3.1.4 Clasts
        1.3.2 Cambrian Calcite Skeletal Grains
            1.3.2.1 Calcareous Plants
            1.3.2.2 Skeletal Fossils
    1.4 Ooids
        1.4.1 Comparison Between Modern and Ancient Ooids
            1.4.1.1 Modern Ooids
            1.4.1.2 Ancient Ooids
    1.5 Aims and Objectives
    1.6 Scientific Problems
        1.6.1 Standard Model of Sequence Stratigraphy
        1.6.2 Wilson Model
        1.6.3 Mineralogy of Ooids
        1.6.4 Origin of Ooids
    1.7 Methodology
        1.7.1 Field Work
        1.7.2 Laboratory Work
        1.7.3 Data Analysis and Compilation of Research
    1.8 Innovations
Chapter2 Cambrian Stratigraphy and Petrography of North China
    2.1 Cambrian Chronostratigraphy
        2.1.1 Chronological Cambrian Division
    2.2 Cambrian Lithostratigraphy
        2.2.1 Generalized Stratigraphy of North China Platform
            2.2.1.1 Sequence Stratigraphy of Miaolingian
            2.2.1.2 Sequence Stratigraphy of Furongian
    2.3 Generalized Petrography of North China Platform
        2.3.1 Girvanllea-Cortex ooids
        2.3.2 Girvanella-Core Ooids
        2.3.3 Full-Girvanella Ooids
        2.3.4 Girvanella-Deformed Ooids
Chapter3 Sequence Stratigraphy of Kelan Section,Shanxi Province
    3.1 Sequence Stratigraphic Division
        3.1.1 Huoshan Formation(DS1)
        3.1.2 Xuzhuang Formation(DS2)
        3.1.3 Zhangxia Formation(DS3)
        3.1.4 Gushan Formation(DS4)
        3.1.5 Changshan Formation(DS5)
        3.1.6 Fengshan Formation(DS6-7)
    3.2 Forced Regression and Development of Ooid-Grain Bank
Chapter4 Oolitic-Grain Bank and Associated Microfacies at Kelan Section,Shanxi Province
    4.1 Oolitic-Grain Bank
        4.1.1 Xuzhuang Formation
        4.1.2 Zhangxia Formation
        4.1.3 Gushan Formation
        4.1.4 Changshan Formation
        4.1.5 Fengshan Formation
    4.2 Microfacies
        4.2.1 Ooidal Bioclastic Dolo-Grainstone(MF-1)
        4.2.2 Ooidal Intraclastic Dolo-Grainstone(MF-2)
        4.2.3 Ooidal Dolostone(MF-3)
        4.2.4 Lime Mudstone(MF-4)
        4.2.5 Ooidal Bioclastic Dolo Pack-to Grainstone(MF-5)
        4.2.6 Microbialitic Boundstone(MF-6)
Chapter5 Possible Forming Mechanism of the Cambrian Calcite Ooids
    5.1 Forming environment
        5.1.1 Drowning Mechanisms
        5.1.2 Platform Drowning Reflected by Microfacies of Kelan Section
            5.1.2.1 Pre-drowning Phase
            5.1.2.2 Drowning Phase
            5.1.2.3 Post-drowning Phase
    5.2 Microfacies Composition
    5.3 Complex Ooids Forming Mechanism Dominated by Cyanobacteria Biofilm
Chapter6 Conclusions
Acknowledgements
References
Appendix


【参考文献】:
期刊论文
[1]辽东半岛复州湾剖面寒武系第二统光合作用生物膜建造的核形石[J]. 梅冥相,Muhammad Riaz,刘丽,孟庆芬.  古地理学报. 2019(01)
[2]微生物碳酸盐岩的成因、分类以及问题与展望——来自华北地台寒武系微生物碳酸盐岩研究的启示[J]. 王龙,Khalid Latif,Muhammad Riaz,刘晓晔.  地球科学进展. 2018(10)
[3]河北涞源祁家峪剖面寒武系层序地层划分[J]. 肖恩照,隋明园,覃英伦,Khalid Latif,Muhammad Riaz,王皓.  大庆石油地质与开发. 2017(06)
[4]吕梁山东北缘寒武系层序地层划分——以文水苍尔会剖面为例[J]. 肖恩照,覃英伦,Muhammad Riaz,Khalid Latif,姚琳,王皓.  东北石油大学学报. 2017(05)
[5]层序地层框架下的鲕粒滩形成样式:以北京西郊下苇甸剖面寒武系第三统为例[J]. 马永生,梅冥相,周润轩,杨文.  岩石学报. 2017(04)
[6]微生物白云岩形成机制研究进展与存在问题[J]. 肖恩照,隋明园,Khalid Latif,Muhammad Riaz.  大庆石油地质与开发. 2017(02)
[7]现代叠层石的多样化构成:认识古代叠层石形成的关键和窗口[J]. 梅冥相,孟庆芬.  古地理学报. 2016(02)
[8]北京西郊寒武系凤山组叠层石生物层[J]. 梅冥相,刘丽,胡媛.  地质学报. 2015(02)
[9]北京西郊下苇甸剖面寒武系崮山组叠层石生物丘的沉积组构[J]. 梅冥相,郭荣涛,胡媛.  岩石学报. 2011(08)
[10]华北寒武系二级海侵背景下的沉积趋势及层序地层序列:以北京西郊下苇甸剖面为例[J]. 梅冥相.  中国地质. 2011(02)



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