华北地台晚古生代海侵模式雏议  

DISCUSSIONS ON THE TRANSGRESSION MODEL OF THE LATE PALAEOZOIC IN THE NORTH CHINA PLATFORM

作　　者：张鹏飞[1] 邵龙义[1] 代世峰[1] 

机构地区：[1]中国矿业大学

出　　处：《古地理学报》2001年第1期15-24,共10页Journal of Palaeogeography：Chinese Edition

基　　金：国家自然科学基金资助项目 (49772 12 9)

摘　　要：本文对华北地台的山西太原西山上石炭统太原组的 7、8和 11号煤层及其顶板灰岩的地球化学特征、煤核和生物化石进行了系统分析 ,发现煤层形成过程中有海水的影响 ,煤层上覆石灰岩形成过程中亦有淡水参与 ,说明煤层及其顶板灰岩在相序上是连续的 ,其海侵模式并不是突发型海侵 ,而为渐进型海侵。The geochemistry,coal ball and fossils of the No.7,No.8,and No.11 coal seams and their overlying limestones of the Taiyuan Formation in the western Taiyuan Mountains of Shanxi Province have been systematically analysed.The results show that the coal deposition was associated with the marine transgression and the deposition of the overlying limestone was influenced by the influx of fresh water.It is believed that there is no facies break between the coal seam and its overlying limestone and the transgression across the boundary of these two lithological units was gradual rather than abrupt.The relationships between sea level changes and coal accumulation is further discussed based on the sequence stratigraphic principle.

关 键 词：华北地台 晚古生代 海侵模式 地球化学特征 层序地层学 

分 类 号：P534.4[天文地球—古生物学与地层学] P539.2[天文地球—地质学]