Molecular Fossils and Sedimentary Environment of the Cretaceous Lower Qingshankou Formation in Eastern Songliao Basin, Northeast China

摘要：

INTRODUCTION The Songliao basin in Northeast China is one of the largest Cretaceous continental rift basins in the world. The black shale and oil-bearing shale in the lower Qingshankou Formation were considered to be the record of a lacustrine anoxic event (Huang et al., 1998), forming a primary source for the basins hydrocarbon reserves (Li et al., 1995). More studies were conducted on the central zone of Songliao basin (Feng et al., 2007; Yang et al., 1985), leaving the eastern zone largely unknown. The maturity index of the lower Qingshankou Formation is commonly very high in the central zone (Zhong et al., 2009), which is not conducive to the preservation of molecular fossils. The study area is located in the Qingshankou Village, southeastern Songliao basin (Fig. 1), where the lower Qingshankou Formation crops out along the southern bank of Second Songhua River (Wang et al., 2001).

作者: Xi Dangpeng Li Shun Wan Xiaoqiao

作者单位: School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China

会议类型: 国际会议

会议名称: The International Conference of Geobiology(地球生物学国际研讨会)

会议地点: 武汉

会议语种:英文

页码: 216-218

在线出版日期: 2010-06-03（万方平台首次上网日期，不代表论文的发表时间）