P534.63
地质矿产部“九五”重点基础研究项目(编号9501113)，河北省阳原县井儿沟幅1:50000区域地质调查项目
通过对阳原盆地中井儿洼孔（深２００，６m）河湖相岩石地层、生物地层和古地磁等的研 究，将第四系河湖相层新命名为阳原群，进一步划分３个组，即下更新统８泥河湾组（深２００．６～１０７．８m，未见底），由褐灰色粉砂质粘土和粉砂组成；下一中更新统小组成；下一中更新统小渡口组（深１０７．８～２０．６m）由灰、灰黑色粉砂质粘土和粉砂 质粘土和粉砂组成，内含１２段纹层，可作为标志层，底界年龄约１０００Ka；中一上更新
By means of various methods, the writers analyzed cores from a borehole, 200. 6 m deep, in the Yanyuan basin. In terms of lithostratigraphic, biologic and paleomagnetic features, the Quaternary lacustrine sediments were renamed the Yanyuan Group, which ca
闵隆瑞 朱关祥.2000.从井儿洼孔岩心看阳原盆地第四纪湖相层的划分[J].地质学报,74(2).
Min Longrui Chi Zhenqing Zhu GuanxiangInstitute of Geology, Chinese Academy of Geological Sciences, Beijing,, Chinese Academy of Geological Sciences, Beijing,.2000. Division of Quaternary Lacustrine Beds in Jing''''erwa Bolehole of the Yangyuan Basin[J]. Acta Geologica Sinica,74(2).
