Acknowledgements The authors thank Drs. Meng Xianwei, Liu Jihua, Chen Zhihua and Bu Wenrui for helpful discussion in sample analysis and measurements. The preliminary treatment of samples for ^10Be dating was made at ^10Be Laboratory, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences; the ferromanganese crust samples were collected by R/V Dayang No. 1 during D Y105-11 cruise and provided by China 0cean Repository. This work was supported by China 0cean Mineral Resources Association (Grant Nos. DY105-01-04-08, DY105-01-04-02) and the National Natural Science Foundation of China (Grant No. 40173027).
Based on results of nannofossil analysis and 10Be dating in ferromanganese crusts M1-1 and A1-1 (no nannofossils were found in it),from the western and central Pacific respectively,it is found that the crust growth ag...
This work was supported by the National Key Basic Research Special Foundation Project (Grant No. G2000078502);the National Natural Science Foundation of China (Grant No. 49999560).
Oxygen and carbon isotopic analyses have been carried out on calcareous nannofossils from ODP Site 1143 in the southern South China Sea. The results demonstrate that the δ18O values of calcareous nannofossils for the...