Charophytes from the Upper Cretaceous to probably Paleocene Jiaozhou Formation in the Jiaolai Basin (Eastern China)  

作　　者：LI Shal ZHANG Haichun WANG Qifei WAN Xiaoqiao 

机构地区：[1]Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China [2]State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China [3]Center for Excellence in Life andPaleoenvironment, Chinese Academy of Sciences, Nanjing 210008, China [4]State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing 100083, China

出　　处：《Acta Geologica Sinica(English Edition)》2018年第4期1647-1648,共2页地质学报（英文版）

基　　金：projects funded by the National Nature Science Foundation of China (Grant Nos.41602003 and 41688103)

摘　　要：Objective The Cretaceous-Paleogene boundary （K-Pg boundary） marks the beginning of the Cenozoic, and is one of the most important geological boundaries. Charophytes are usually very abundant in the non-marine strata near the KPg boundary, and the change in the charophyte flora can help to recognize the K-Pg boundary. The position of KPg boundary in the Jiaolai Basin, eastem Shandong Province, China is still in dispute. The LK-1 borehole project, which was carried out by the Institute of Geology, Chinese Academy of Geological Sciences, produced a high-quality core in northern Jiaozhou, Shandong. In this core, lots of charophyte gyrogonites have been found from the Jiaozhou Formation for the first time. It is significant to study these charophytes, which further helps to find the K-Pg boundary in the Jiaolai Basin.Objective The Cretaceous-Paleogene boundary （K-Pg boundary） marks the beginning of the Cenozoic, and is one of the most important geological boundaries. Charophytes are usually very abundant in the non-marine strata near the KPg boundary, and the change in the charophyte flora can help to recognize the K-Pg boundary. The position of KPg boundary in the Jiaolai Basin, eastem Shandong Province, China is still in dispute. The LK-1 borehole project, which was carried out by the Institute of Geology, Chinese Academy of Geological Sciences, produced a high-quality core in northern Jiaozhou, Shandong. In this core, lots of charophyte gyrogonites have been found from the Jiaozhou Formation for the first time. It is significant to study these charophytes, which further helps to find the K-Pg boundary in the Jiaolai Basin.

分 类 号：P534.53[天文地球—古生物学与地层学] P5[天文地球—地质学]