Geochemical analyses from different surface sediment samples of Lake Towuti, ...

For granulometric, geochemical and mineralogical analyses, approximately 25 ml of each surface sample was frozen for 24 hours and subsequently lyophilized using a Christ BETA...针对粒度分析（granulometric analysis）、地球化学分析（geochemical analysis）及矿物学分析（mineralogical analysis），每份表层样品（surface sample）取约25毫升，先经24小时冷冻处理，随后使用Christ BETA……进行冷冻干燥。