Diatom sea ice index in marine sediment core MD01-2414 from the central Okhot...

The diatom valves were counted at magnifications of 1000 times; at least 400 valves were counted per sample. Percentages are based on the total diatom sum. The samples with poor...硅藻瓣片将以1000倍放大倍率进行计数；每个样品至少需计数400个瓣片。百分比数值均以硅藻总计数之和为基准计算得到。部分质量不佳的样品……