新密煤田太原组山西组层序地层与聚煤规律  

Sequence Stratigraphy of Taiyuan & Shanxi Formation and Coalaccumulation in Xinmi Coal Field

作　　者：刘钟森[1,2] 田景春[1] 林小兵[1] 张翔[1] 

机构地区：[1]成都理工大学沉积地质研究院,成都610059 [2]河南省地质环境规划设计院有限公司,郑州450007

出　　处：《科学技术与工程》2015年第3期187-192,共6页Science Technology and Engineering

摘　　要：太原组山西组煤系地层形成过程也是沉积环境由浅海相、海陆过渡相到陆相的演化过程,相对海平面变化呈现前期上升随后震荡下降趋势。利用测井曲线、沉积地球化学特征、煤岩层组合特征及钻孔地层资料进行地层对比分析,根据高分辨率层序地层学理论建立层序地层格架;并在层序地层格架内分析煤层时空分布的成因;并勾画出海平面升降曲线,归纳古地理沉积环境的演化顺序及对应的沉积环境煤层的煤质特征成因并总结聚煤规律。The formation process of Taiyuan Shanxi Formation coal bearing strata,which is also the evolution process of sedimentary environment from shallow marine facies transitional facies to continental facies,the trend of relative sea-level change is rose in the early stage,then concussed dropped.On the basis of well logging curves and sedimentary eochemistry,comparative analysis of strata,combined with coal rock assemblage and drilling information.According to high resolution sequence,construct the sequence stratigraphic frameworks,analysis of the causes of temporal and spatial distribution of the coal bed.The sea level curve was painted,Characteristics of coal formation depositional environment evolution sequence palaeogeographical sedimentary environment and the corresponding were studied.Finally,the patterns of coal accumulation were analyzed.

关 键 词：高分辨率层序地层 沉积地球化学 山西组 太原组 

分 类 号：P618.11[天文地球—矿床学]