| 华北地区晚新生代几个地层单元的讨论 |
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| 关键词:North China Cenozoic Shixia Formation Xujiayao Formation |
| 基金项目:国家地调局工作项目(1212010510522),中国地质科学院水文地质环境地质研究所基本科研项目(SK200810)联合资助 |
| 作者 | 单位 | E-mail | | 刘海坤 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | shslhuaikun@163.com | | 王法岗 | 河北省文物研究所, 河北石家庄 050030 | | | 徐建明 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 张静 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 赵华 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 张翼龙 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 闫丰录 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 殷夏 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 黄远征 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 王立民 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 范淑贤 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 吉云平 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 毕志伟 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 毛洪亮 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 纪洪磊 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 刘林敬 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 马荣 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | | | 王金哲 | 中国地质科学院水文地质环境地质研究所, 河北石家庄 050061 | |
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| Discussion on Several Typical Late Cenozoic Stratigraphic Units in North China |
| Late Cenozoic strata are well exposed and have clear stratigraphic sequence in Yangyuan basin. They are well-known for rich fossils and ancient human relics. In recent years, different research methods were applied and the accuracy of the stratigraphic study has been improved steadily. Nevertheless, opinions remain different or even confused in stratigraphic division and names of stratigraphic units. Based on previous researches according to such projects as “1:50000 Regional Geological Survey for Huashaoying and Beishuiquan Sheets and the Study of Nihewan Stratigraphic Sequence” and “Restudy of the Standard Stratigraphic Unit of Late Pleistocene Xujiayao Unit in North China”, the authors made a new division for the Late Pliocene laterite, Xujiayao Formation and Nihewan Formation in Yangyuan basin, with the emphasis placed on the characteristics of Pliocene laterite and Xujiayao Formation as well as the contact relationship between Xujiayao Formation and Nihewan Formation. Through analyzing lithostratigraphy, biostratigraphy, magnetostratigrphy and paleoenvironment, it is considered that Pliocene laterite should belong to a series of multi-genetic laterite formations, and hence it is unreasonable to repeat the formation building in Yangyuan basin. Based on profile survey of Quaternary geological structure identified by volcanic ash and fossils found in Xujiayao Formation, it is also thought that Xujiayao fauna belongs to Late Pleistocene, and the rock sequence below palaeontologic and ancient creature relics should belong to middle Pleistocene. The achievements made by the authors provide new evidence for studying the characteristics and attributes of the standard Late Cenozoic stratigraphic unit in Nihewan basin. |
| LIU Hai-kun,WANG Fa-gang,XU Jian-ming,ZHANG Jing,ZHAO Hua,ZHANG Yi-long,AN Fen-lu,YIN Xia,HUANG Yuan-zheng,WANG Li-min,FAN Shu-xian,JI Yun-ping,BI Zhi-wei,MAO Hong-liang,JI Hong-lei,LIU Lin-jing,MA Rong,WANG Jin-zhe.2009.Discussion on Several Typical Late Cenozoic Stratigraphic Units in North China[J].Acta Geoscientica Sinica,30(5):571-580. |
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