【作者】 李庆平； 王继广； 张富中； 李秀章； 张春池； 朱继托；

【Author】 LI Qing- ping, WANG Ji - guang, ZHANG Fu- zhong, LI Xiu - zhang, ZHANG Chun - chi, ZHU Ji - tuo (Shandong Geological survey Institute, Shandong, Jinan 250013, China)

【机构】 山东省地质调查院；

【摘要】 山东基岩区三叠系一直缺少生物化石依据。前人在该套地层底部发现了铱等元素异常,认为可作为划分其地质时代的依据。笔者在该地层中首次发现了孢粉化石,结合前人铱等异常特征,确定其形成于早-中三叠世。并认为区内孙家沟组相当于华北地区的和尚沟组;而刘家沟组则相当于二马营组。更多还原

【Abstract】 For a long time, Triassic in base rocks area in Shandong province have been short of biotic fossil evidence. Some elementary anomalies of indium and other elements have been found at the bottom of the stratum, it can be used as the evidence to separate geological era. The sporopollen fossils have been found in the stratum for the first time. Combined with anomalies of indium and other elements, it can be confirmed that the stratum came into being in early - middle Triassic period. It is believed that Sunjiagou formation is correspondent with Heshanggou formation in North China, while Liujiagou formation is correspondent with Er’maying formation.更多还原