山西平陆地区古近纪河湖相地层的重新厘定与划分  

Revision and classification of Paleogene fluvial-lacustrine strata in the Pinglu area, Shanxi

作　　者：朱大岗[1] 孟宪刚[1] 邵兆刚[1] 雷伟志[1] 王津[1] 韩建恩[1] 余佳[1] 吕荣平[1] 王艳[1] 

机构地区：[1]中国地质科学院地质力学研究所,国土资源部新构造运动与地质灾害重点实验室,北京100081

出　　处：《中国地质》2008年第4期656-669,共14页Geology in China

基　　金：中国地质调查局地质大调查项目(1212010611703)资助

摘　　要：通过对山西平陆地区河湖相地层的野外地质调查和实测剖面,对分布于该区内的古近系进行了详细的研究和划分,重新厘定了该区古近系岩石地层单元,建立了生物地层和年代地层层序,提供了新的ESR测年数据。将该套河湖相地层从新到老重新划分为:渐新统柳林河组(E23l)、小安组(E31x);始新统西滩组(E42x)、赵家岭组(E23z)、坡底组(E22p)、门里组(E21m);古新统坝头组(E11b)。为华北地区乃至全国古近纪地层的研究与划分对比提供了重要依据。Recently the authors have carried out field geological survey and measured sections in the Pinglu area, Shanxi. According to the survey and section they have made a detailed study and classification of the Paleogene strata distributed in the study area, redefined Paleogene lithostratigraphic units in the area, established the biostratigraphic and chronostratigraphic sequences and provided new ESR dating data. The fluvio-lacustrine strata have been divided from younger to older into the Oligocene Liulinhe Formation （E32l） and Xiaoan Formation （E3^1 x）, Eocene Xitan Formation （E2^4x）, Zhaojialing Formation （E2^3z）, Podi Formation （E2^2p） and Menli Formation （E2^1 m） and Paleocene Batou Formation （E1b）. This study provides an important basis for the study, division and correlation of the Paleogene of North China and even the whole country.

关 键 词：山西平陆 古近系 岩石地层 生物地层 电子自旋共振 

分 类 号：P534.61[天文地球—古生物学与地层学]