^pLaboratory;
of;
Surficial;
Geochemistry,;
School;
of;
Earth;
Sciences;
and;
Engineering,;
Nanjing;
University,;
Nanjing;
210093,;
China;
^pof;
Geography,;
Nanjing;
Normal;
University,;
Nanjing;
210000,;
China;
Sr-Nd同位素; 水文站; 长江; 水深; 悬浮沉积物; 同位素组成; 个例; 大通;