The study of Mg isotopes has been carried out for about 40 years since 1970 s.With analytical progress,the study is not only limited to the excess of 26Mg due to decay of short-lived 26Al in primitive
The molecular biomarker compositions of the ornithogenic sediments(YN),from Svalbard,Arctic were investigated.The results showed that n-alkanes had a bimodal pattern and their odd-even preference was
The concentration and profile characters of nutrients in sediment pore water of the South Ocean,sampled during the cruise of CHINARE-18 of the austral summer 20