首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Reconstruction of High Resolution Timescale in Weinan Loess Section of Late Quaternary
Authors:Wang Wenyuan  Liu Jiaqi  Pan Mao  Liu Tungsheng
Abstract:Seven samples of loess and paleosol collected from the major stratigraphic boundaries of the strata of the Weinan section, Shaanxi Province, are dated using the fine-grained TL technique.Based on the TL results and previously ages-published from this section, the polynomial fitting methods are applied to the development of the high resolution time scale for the Weinan loess section in the late Quaternary. According to this time scale, the ages of S0/L1, L1-1/L1-2, L1-4/L1-5, L1/S1 and S1/L2 stratigraphic boundary of Weinan section are 1. 1, 2. 5, 5. 1,7. 6 and 12. 8 ka B. P., which, with exception of the maximum difference between the ages of L1-4/ L1-5 and the ages of 3/4 stage boundary of the deep-sea oxygen isotopes, are generally consistent with the ages of 1/2, 2/3, 4/5 and 5/6 stage boundary of the deep-sea oxygen isotopes in the SPECMAP curve.
Keywords:loess  thermoluminescence dating  high resolution  time scale
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号