华北平原晚更新世以来岩石地层、生物地层及气候地层  

Lithostratigraphy,Biostratigraphy and Climatic Stratigraphy in the North China Plain since Late Pleistocene

作　　者：张静[1] 徐建明[1] 刘海坤[1] 李政红[1] 杨振京[1] 毕志伟[1] 

机构地区：[1]中国地质科学院水文地质环境地质研究所,河北石家庄050061

出　　处：《现代地质》2009年第1期64-74,共11页Geoscience

基　　金：中国地质调查局国土资源大调查项目(200312300002)

摘　　要：前人对华北平原晚更新世以来的地层虽有较多的研究,但由于历史的原因,其所采的样品均过稀(一般为1个样品/2 m),所以,其地层界线的划分不够精细,争论也很大。对华北平原的HG1孔和HN1孔进行了加密采样(HG1孔1个样品/0.20 m,HN1孔1个样品/0.07 m),对HN1孔还加大了其微量14C年龄的测定数量(共测试17个样品),并对HG1孔的有孔虫进行了详细鉴定,对HN1孔的有孔虫进行了高分辨率鉴别。在此基础上,对华北平原晚更新世以来的岩石地层、生物地层及气候地层进行了进一步的研究,厘定了华北平原全新世与晚更新世地层的年龄界线。与此同时,结合前人的研究成果,建立了华北平原第四纪地层的标准模式地层层系。Though many studies on the stratigraphy since the Late Pleistocene have been done in the North China Plain, the samples were very sparsity （ usually 1 sample/2 m） for the reason of history, so the stratigraphie borderline is not fine and there are many questions on it. In this paper, the very dense sampling has been done in the boreholes of HG1 and HN1 in the North China Plain （ 1 sample/0. 20 m in borehole HG1, 1 sample/ 0.07 m in borehole HN1 ） , ^14C dating of 17 samples had been determined in borehole HN1, the foraminifera of borehole HG1 had been identified in detail, and the foraminifera of borehole HN1 had also been studied in high resolution. Based on this information, the lithostratigraphy, biostratigraphy and climatic stratigraphy since Late Pleistocene in the North China Plain had been further studied, the age borderline between Holocene and Pleistocene of the North China Plain had been determined. At the same time, the standard Quaternary stratigraphie system of the North China Plain had been established on the basis of previous study.

关 键 词：华北平原 晚更新世 岩石地层 生物地层 气候地层 地层层系 

分 类 号：P534.63[天文地球—第四纪地质学]