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