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一 序言 鄂尔多斯盆地西缘是石油普查的有利地区,其中主要生油岩系为石炭系,搞清其赋存情况对寻找油气资源具有重要意义。1980年我们在西缘桌子山南端白彦套海地区伊16井钻遇了厚度最大,比较完整的石炭系,并首次在中石炭统羊虎沟组发现含油显示。 在伊16井935.44—1310.00米井段共取样品22块,均发现有大量保存完好的孢粉化石。经系统研究,计有48属77种(包括1新属,8新种)。根据国内、外对比,确定其时代为中石炭世。从而建立了本区羊虎沟组较为完整的孢粉组合剖面,对我国,特别是华北地区石炭系的划分与对比具一定的实际意义。
A preface The western margin of the Ordos Basin is a favorable area for petroleum census. The major source rocks are Carboniferous. It is of great significance to find out the occurrence of the oil-gas resources. In 1980, we met the Carboniferous with the largest thickness and relatively complete thickness in the Well Yi 16 in the Baiyantaohai area on the southern tip of the Table Mountain in the western margin. For the first time, we found oil in the Yanghuogou Formation of the Carboniferous. A total of 22 samples were taken from well 935.44-1310.00 m in Yi 16 well and a large number of well-preserved sporel fossils were found. After systematic research, there are 48 genera and 77 species (including 1 new genera and 8 new species). According to domestic and foreign comparison, to determine its era for the Carboniferous. Therefore, a complete assemblage of sporopollen assemblages in the Yanghugou Formation in this area is established, which is of certain practical significance for the division and comparison of Carboniferous in China, especially in North China.