Magnetostratigraphic dating of the Shanshenmiaozui mammalian fauna in the Nihewan Basin, North China
Magnetostratigraphic dating of the Shanshenmiaozui mammalian fauna in the Nihewan Basin, North China
复制标题
泥河湾盆地山神庙嘴哺乳动物区系的磁性地层测年
DOI：
10.1016/j.quaint.2014.09.024
复制
发表时间：
2016-05
影响因子：
2.2
通讯作者：
刘平
中科院分区：
文献类型：
--
作者：
刘平
华北泥河湾盆地哺乳动物区系的发生时间为我们了解东亚第四纪生物年代学和生物地层学提供了见解。在这里，我们通过详细的磁性地层调查，以及对该盆地（其中包含山神庙嘴哺乳动物群）的河流-湖泊序列的矿物磁测量，为该主题做出贡献。磁铁矿和赤铁矿被确定为特征剩磁的主要载体。磁性地层结果表明，山神庙嘴沉积层序记录了Brunhes年代、Jaramillo亚年代和晚Matuyama年代。山神庙嘴、小长梁和大长梁剖面之间的岩性、磁化率和磁极性序列的地层对比表明，山神庙嘴哺乳动物化石层比小长梁和大长梁人工石层更年轻，此前估计小长梁和大长梁人工石层的年龄约为1.36 Ma。该剖面底部的山神庙嘴哺乳动物化石层的年龄估计约为1.2Ma。山神庙嘴剖面的新磁性地层学为泥河湾盆地岩石地层和生物地层对比提供了有用的约束。
Timing of the mammalian faunas in the Nihewan Basin, North China has provided insights into our understanding of Quaternary biochronology and biostratigraphy in East Asia. Here we contribute to this topic with detailed magnetostratigraphic investigation, coupled with mineral magnetic measurements on a fluvio-lacustrine sequence in this basin, which contains the Shanshenmiaozui mammalian fauna. Magnetite and hematite were identified as the main carriers for the characteristic remanent magnetizations. Magnetostratigraphic results show that the Shanshenmiaozui sedimentary sequence recorded the Brunhes chron, the Jaramillo subchron, and the late Matuyama chron. Stratigraphic correlation in terms of lithology, magnetic susceptibility and magnetic polarity sequences between the Shanshenmiaozui, Xiaochangliang and Dachangliang sections indicates that the Shanshenmiaozui mammalian fossil layer is younger than the Xiaochangliang and Dachangliang artefact layers, which have been previously estimated to be about 1.36 Ma. The age of the Shanshenmiaozui mammalian fossil layer at the bottom of the section is estimated to be about 1.2 Ma. The new magnetostratigraphy of the Shanshenmiaozui section provides useful constraints on lithostratigraphic and biostratigraphic correlations in the Nihewan Basin.
登录
查看更多内容
影响因子：
3.9
作者：
Egli, R
通讯作者：
Egli, R
影响因子：
3.9
作者：
D. Dunlop
通讯作者：
D. Dunlop
影响因子：
2.2
作者：
Hao-wen Tong
通讯作者：
Hao-wen Tong
影响因子：
64.8
作者：
R. Zhu;K. Hoffman;R. Potts;C. Deng;Yongxin Pan;B. Guo;C. Shi;Zhengtang Guo;B. Yuan;
通讯作者：
R. Zhu;K. Hoffman;R. Potts;C. Deng;Yongxin Pan;B. Guo;C. Shi;Zhengtang Guo;B. Yuan;
影响因子：
2.3
作者：
Deng, Chenglong;Zhu, Rixiang;Pan, Yongxin
通讯作者：
Pan, Yongxin