Table 2 Number of tephra per drill hole in bins of 10 for up to 200 and bins of 100 for >200.
From: VOLCORE, a global database of visible tephra layers sampled by ocean drilling
Number of tephra per drill hole | Number of drill holes with each number of tephra |
|---|---|
0 | 2719 |
1–10 | 741 |
11–20 | 127 |
21–30 | 58 |
31–40 | 40 |
41–50 | 30 |
51–60 | 25 |
61–70 | 13 |
71–80 | 23 |
81–90 | 18 |
91–100 | 12 |
101–110 | 10 |
111–120 | 8 |
121–130 | 6 |
131–140 | 4 |
141–150 | 3 |
151–160 | 3 |
161–170 | 4 |
171–180 | 3 |
181–190 | 1 |
191–200 | 2 |
201–300 | 8 |
301–400 | 8 |
401–500 | 1 |
501–600 | 0 |
601–700 | 0 |
701–800 | 0 |
801–900 | 0 |
901–1000 | 3 |
>1000 | 3 |
