用户名: 密码: 验证码:
Re-Examination of the Age of Beiyao Site, Luoyang City
详细信息   
摘要

Beiyao Site is situated in the third sequence of Chanhe River, one branch of Luohe River. In the course of archaeological excavations, the authors collected a set of loess samples with 10 cm spacing, measured magnetic susceptibility and grain size data in the Sedimentary Laboratory of Institute of Geology and Geophysics, Chinese Academy of Sciences. First of all, the magnetic susceptibility of Beiyao section has 3 peaks, which is respectively 169.8×10-8 m3/kg, 158×10-8 m3/kg and 224.5×10-8 m3/kg, There are also three peaks in Duanjiapo section and deep-sea oxygen isotope curve. Secondly, the morphology of Beiyao curve has two-peaks-three-valleys structure between the first and second peaks, second and third peaks. The same pattern is also present in Duanjipo section and marine isotope curve, so the authors can correspond three peaks respectively to S1, S2, S3 or Layer 2, 4, and 7 in field section.


    

 


    

 

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700