摘要
为了充分利用已有的非定量分析孢粉资料,开展孢粉相及孢粉与烃源岩关系研究,引入"孢粉相对密度"概念,定义为孢粉样品鉴定中每个盖片数的孢粉个数。根据牛28井相同井段对比分析,孢粉相对密度的变化趋势与地层中孢粉实际含量的变化趋势一致。以东营凹陷古近纪为例,探讨了孢粉相对密度在石油地质中的应用。可以利用孢粉相对密度进行层序划分对比,孢粉相对密度在区域上的变化具有同步性。通过对孢粉相对密度在横向上分布规律研究,能为研究孢粉量的区域分布特征提供依据。
Defined'Spore-Pollen Relative Density'as the number of spore-pollen per cover-glass,it makes full use of existing non-quantitative analysis data of spore-pollen,to study palynofacies or the source rock relationship with spore-pollen.Analysis of the data in same depths from Borehole Niu 28 shows that the curves of the spore-pollen rela-tive density and of the actual spore-pollen content are similar.By taking the Paleogene system in the Dongying Sag,Shandong for example,Spore-pollen Relative Density and its application in petroleum geology are discussed.The spore-pollen relative density can be used in sequence subdivision and comparison for its isochronism in the region.Re-search on the distribution of the spore-pollen relative density provides a basis for studying the distribution of the spore-pollen content.
出处
《微体古生物学报》
CSCD
北大核心
2011年第4期429-434,共6页
Acta Micropalaeontologica Sinica
基金
中石化"东营南坡红层基本地质特征与油气成藏"(P09009)项目支持
关键词
孢粉
相对密度
层序
石油地质
古近纪
东营凹陷
山东
Spore-pollen,Relative Density,Sequence,Petroleum Geology,Paleogene,Dongying Sag,Shandong Province
