TABLE 1.
Depth (m) | Age (yr) | Time to filter (min)a | pH | No. of GCEs/ ml ice core water (mean ± SD) |
---|---|---|---|---|
158 | 600 | 14 | 5.0 | 2.0 ± 0.3 |
480 | 2,000 | 23 | 5.0 | 1.2 ± 0.4 |
834 | 40,00 | 35 | 5.0 | 2.0 ± 0.8 |
The amount of time it takes to finish filtering 450 ml ice core meltwater. This parameter indicates the turbidity of ice core samples.