Table T6. Volcanic ash layers recovered at Site 1148.

Core, section, interval (cm) Top
Bottom Thickness (cm) Remarks/comments
Depth
(mbsf)
Depth
(mcd)

Depth
(mbsf)
Depth
(mcd)
184-1148A-






2H-6, 41 8.71 13.56


<1 Light gray volcanic ash as burrow fill
3H-4, 78-81 15.51 20.36
15.54 20.39 3 Black pumice lump, 4 cm long
4H-2, 86-89 22.16 27.01
22.19 27.04 3 Light gray ash layer, mottles and burrows with ash between 79 and 92 cm
4H-3, 71 23.51 28.36


<1 Small burrow filled with beige ash
4H-6, 86-90 28.16 33.01
28.20 33.05 4 Black volcanic ash, overlain by a turbidite
6H-2, 86-91 41.16 46.96
41.21 47.01 5 Beige ash in burrows
6H-2, 129-133 41.59 47.39
41.63 47.43 4 Beige ash in burrows
11H-2, 133-136 89.13 97.85
89.16 97.88 3 Medium gray volcanic ash layer with green clay at the bottom
12H-4, 39-44 100.69 110.36
100.74 110.41 5 Bioturbated dark gray ash layer and ash in burrows
18X-2, 46-48 154.86 167.08
154.88 167.10 2 Medium gray ash with green clay mottles above and below
33X-3, 115-120 301.45 313.67
301.50 313.72 5 Dispersed ash in greenish gray reduction zone (low magnetic susceptibility)
33X-5, 95-101 304.25 316.47
304.31 316.53 6 Black ash layer in greenish gray reduction zone (low magnetic susceptibility)
184-1148B-






3H-1, 77-81 18.37 19.22
18.41 19.26 4 Light gray ash layer with small ash-filled burrows below
5H-3, 137-138 44.97 44.62
44.98 44.63 1 Pumice clast
5H-5, 76-77 47.36 47.01
47.37 47.02 1 Light gray ash layer
5H-5, 89-89 47.49 47.14


<1 Burrow filled with light gray ash
6H-5, 94-100 57.04 57.39
57.10 57.45 6 Dispersed volcanic ash
10H-5, 135-138 95.45 97.77
95.48 97.80 3 Medium gray volcanic ash layer with sharp base and gradational upper contact