巨野煤田潮坪沉积体系及聚煤特征

基金项目:

国家自然科学基金项目(No.49872057)

详细信息

COAL ACCUMULATION CHARACTERISTICS OF TIDAL-FLAT SEDIMENTARY SYSTEM IN JUYE COALFIELD

Research Institute of Applied Geology, shandong University of Science & Technology

摘要: 以大量钻孔岩心和测井资料为基础,研究了巨野煤田石炭二叠系陆表海盆地充填沉积的沉积相特征,划分出3个超层序和12个三级层序,建立了层序地层格架。在此基础上编制以准层序为基本单位的富煤单元图和砂分散体系图,对研究区潮坪沉积体系煤聚积规律进行了分析。研究表明,潮坪沉积体系和陆表海条件下的聚煤作用有着密切的关系,在潮坪沉积体系中,砂体厚度与煤层厚度呈正相关关系。
- 层序地层学 /
- 潮坪沉积体系 /
- 富煤单元 /
- 石炭二叠系 /
- 巨野煤田
Abstract: Based on the data of cores and well logs,the characteristics of sedimentary facies in Permo-Carboniferous epicontinental basin,Juye coal field are analyzed.The sedimentary system is divided into 3 supersequences and 12 third order sequences.The framwork of the stratigraphy sequence is established,based on that the sequence stratigraphy and its internal composition have been recognized through drawing up the sections and planimetric maps.The study shows that the tidal-flat sedimentary system has close relation with the coal accumulation under the epicontinental conditions.And the thickness of the sand body has the positive correlation with the coal seam.
- stratigraphy sequence /
- tidal-flat sedimentary system /
- coal-rich unit /
- Permo-carboniferous /
- Juye coalfield