(Tables 1-3) Silicon dioxide, Corg and trace element concentrations in sedime...

The main question, posed in the work scheme before laboratory analysis was started, was expressed as follows: Do marked seasonal fluctuations occur in trace element content of...在正式启动实验室分析前的工作方案中提出的核心研究问题表述如下：……的微量元素含量是否存在显著的季节波动？