Table T6. Volcanic ash layers recovered at Site 1147.
Core,
section interval (cm) |
Top | Bottom | Thickness (cm) |
Remarks/comments | |||
---|---|---|---|---|---|---|---|
Depth (mbsf) |
Depth (mcd) |
Depth (mbsf) |
Depth (mcd) |
||||
184-1147A- | |||||||
1H-4, 30-64 | 4.80 | 4.95 | 5.14 | 5.29 | 34 | Round burrows filled with light gray volcanic ash | |
2H-5, 89 | 12.29 | 13.74 | 12.29 | 13.74 | <1 | Light gray volcanic ash filling round burrows | |
4H-2, 126 | 27.16 | 30.11 | 27.16 | 30.11 | <1 | White ash layer | |
6H-2, 40-46 | 45.30 | 49.55 | 45.36 | 49.61 | 6 | Brownish gray volcanic ash filling burrows | |
6H-2, 77-78 | 45.67 | 49.92 | 45.68 | 49.93 | 1 | White ash layer | |
6H-2, 80-82 | 45.70 | 49.95 | 45.72 | 49.97 | 2 | Brownish ash layer | |
184-1147B- | |||||||
1H-3, 144, to 1H-4, 8 | 4.44 | 4.44 | 4.58 | 4.58 | 24 | Round burrows filled with light gray volcanic ash | |
1H-6, 5 | 7.55 | 7.55 | 7.55 | 7.55 | <1 | Light gray volcanic ash filling round burrows | |
2H-5, 88 | 16.38 | 16.88 | 16.38 | 16.88 | <1 | Light gray volcanic ash filling round burrows | |
4H-1, 9 | 28.59 | 30.99 | 28.59 | 30.99 | <1 | Light gray volcanic ash filling round burrows | |
4H-4, 59 | 33.59 | 35.29 | 33.59 | 35.29 | 1 | Dark brown ash layer | |
6H-2, 3 | 49.03 | 52.38 | 49.03 | 52.38 | <1 | Pumice fragment | |
184-1147C- | |||||||
2H-2, 91-131 | 5.01 | 5.61 | 5.41 | 6.01 | 40 | Zone of ash-filled burrows | |
4H-5, 44-72 | 28.04 | 30.09 | 28.32 | 30.37 | 28 | Zone of ash-filled burrows | |
5H-3, 130-132 | 35.42 | 37.60 | 35.44 | 37.62 | 2 | Dispersed fine-grained dark gray ash | |
6H-5, 3-13 | 46.63 | 49.63 | 46.73 | 49.73 | 10 | Round burrows filled with light gray volcanic ash | |
6H-5, 38-45 | 46.98 | 49.98 | 47.05 | 50.05 | 7 | Round burrows filled with light gray volcanic ash |