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一、概况分布于松辽盆地中部东缘的早白垩世地层,在公主岭、刘房子、卡伦水库一带(图1)出露较全,前人对这套地层做的工作不多,除局部地段有钻孔控制外,尚无人做过系统的地表工作,研究程度较低。1983年至1984年吉林省地质矿产局区域地质矿产调查所六分队在进行1:20万怀德县幅地质调查工作中,对该区早白垩世地层测制了连续的剖面,采集了较丰富的化石,其中有叶肢
I. Overview Distributed in the Early Cretaceous strata on the eastern margin of the central Songliao Basin, there is relatively little exposure in the areas of Gongzhuling, Liu’s House and the Karen Reservoir (Figure 1) Lots of drilling control, no one has done systematic surface work, research to a lesser extent. From 1983 to 1984, the 6th unit of the regional geology and mineral resources investigation bureau of Jilin Bureau of Geology and Mineral Resources conducted a 1: 200000 geological survey of the HuaiDe county site, and measured the continuous profile of the Early Cretaceous strata in this area and collected more abundant The fossils, of which there are leaf limbs