supported by the National Natural Science Foundation of China (Grant No. 40730104) ;National Basic Research Program of China (Grant No. 2004CB720203)
Major element concentrations were analyzed on the sediments of a 203.6-m core from the North China Plain near Tianjin. The chemical index of alteration (CIA), Al2O3-(CaO+Na2O)-K2O diagram and elemental ratios, such as...
This work was supported by the National Basic Research Program of China(Grant No.2004CB720203);the National Natural Science Foundation of China(Grant Nos.40231001 and 40372083);the Chinese Academy of Sciences(Grant No.KZCX3-SW-139).
The first near continuous mollusk fossil record from the Qinan Miocene loess-soil se-quence is presented. Results show that mollusk species are abundant in the QA-I section between 22 and 6.2 Ma, and both loess layers...