Table T5. Volcanic ash layers recovered at Site 1144.
| Core,
section, interval (cm) |
Top | Bottom | Thickness (cm) | ||||
|---|---|---|---|---|---|---|---|
| (mbsf) | (mcd) | (mbsf) | (mcd) | Description | |||
| 184-1144A- | |||||||
| 5H-3, 80-82 | 39.20 | 40.69 | 39.22 | 40.71 | 1.5 | Light gray bioturbated volcanic ash | |
| 11H-5, 139-139 | 99.79 | 108.12 | 99.79 | 108.12 | 0.5 | Thin, discontinuous light gray ash with sharp basal contact | |
| 18H-3, 0-6 | 161.90 | 176.07 | 161.96 | 176.13 | 6.0 | Graded ash with sharp basal contact | |
| 18H-5, 0-5 | 164.90 | 179.07 | 164.95 | 179.12 | 5.0 | Graded ash with sharp basal contact | |
| 21H-4, 79-81 | 192.69 | 210.81 | 192.71 | 210.83 | 2.0 | Quartz sandy silt (altered volcanic ash?) | |
| 22H-4, 103-104 | 202.43 | 221.30 | 202.44 | 221.31 | 1.0 | Light gray silt-size volcanic ash | |
| 38X-4, 86-90 | 352.46 | 396.61 | 352.50 | 396.65 | 4.0 | Dispersed and bioturbated greenish gray volcanic ash | |
| 48X-5, 2-5 | 449.25 | 514.65 | 449.28 | 514.68 | 3.0 | Volcanic ash, spherules, and pyrite lenticular bed | |
| 184-1144B- | |||||||
| 18H-7, 92-98 | 161.21 | 176.05 | 161.27 | 176.11 | 6.0 | Graded ash | |
| 25X-3, 6-8 | 221.86 | 249.15 | 221.88 | 249.17 | 2.0 | Dispersed light gray volcanic ash | |
| 30X-2, 11-13 | 264.82 | 297.60 | 264.83 | 297.62 | 2.0 | Light gray, strongly bioturbated ash | |
| 30X-6, 138-143 | 272.07 | 304.86 | 272.13 | 304.92 | 6.0 | Light gray, strongly bioturbated ash | |
| 39X-1, 136-136 | 351.36 | 396.25 | 351.36 | 396.26 | 1.0 | Dispersed and bioturbated volcanic ash | |
| 40X-6, 118-119 | 368.38 | 412.75 | 368.39 | 412.76 | 1.0 | Dispersed and bioturbated volcanic ash | |
| 184-1144C- | |||||||
| 4H-4, 4-6 | 32.24 | 36.28 | 32.26 | 36.30 | 2.0 | Light colored volcanic ash, with sharp base and normal grading | |
| 17H-4, 93-96 | 161.60 | 176.01 | 161.66 | 176.07 | 6.0 | Light gray volcanic ash, with sharp base and normal grading upward | |