Table T16. Polarity zonation, Holes U1305A, U1305B, and U1305C.
| Polarity chron interpretation | Age (Ma) |
Interval | Hole U1305A | Hole U1305B | Hole U1305C | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Core, section, interval (cm) |
Depth (mbsf) |
Depth (mcd) |
Core, section, interval (cm) |
Depth (mbsf) |
Depth (mcd) |
Core, section, interval (cm) |
Depth (mbsf) |
Depth (mcd) |
|||
| 303-U1305A- | 303-U1305B- | 303-U1305C- | |||||||||
| C1n (b) Matuyama/Brunhes | 0.78 | Upper | 12H-6, 20 | 111.60 | 127.17 | 13H-2, 80 | 115.10 | 127.31 | 13H-4, 105 | 115.75 | 126.2 |
| Lower | 12H-7, 20 | 113.10 | 128.67 | 13H-3, 50 | 116.30 | 128.51 | 13H-6, 60 | 118.30 | 128.75 | ||
| C1r.1n (t) Jaramillo | 0.99 | Upper | 15H-4, 110 | 138.00 | 156.21 | 15H-6, 105* | 140.45 | 153.82 | 16H-2, 130 | 141.50 | 156.05 |
| Lower | 15H5, 90 | 139.30 | 158.51 | 16H-2, 50 | 142.99 | 157.80 | 16H-4, 5 | 143.24 | 157.70 | ||
| C1r.1n (b) Jaramillo | 1.07 | Upper | 16H-5, 25 | 148.15 | 167.21 | 17H-1, 70 | 151.5 | 166.93 | 17H-3, 20 | 151.38 | 167.48 |
| Lower | 16H-6, 125 | 150.65 | 169.71 | 17H-3, 55 | 154.3 | 169.70 | 17H-4, 95 | 153.62 | 169.72 | ||
| (b) Cobb Mountain | 1.20 | Upper | 20H-2, 25 | 181.66 | 205.30 | 21H-2, 95 | 185.06 | 204.42 | |||
| Lower | 20H-3, 125 | 184.18 | 207.82 | 21H-4, 100 | 188.08 | 207.44 | |||||
| C2n (t) Olduvai | 1.77 | Upper | 30H-2, 70 | 275.58 | 308.43 | ||||||
| Lower | 30H-4, 95 | 278.84 | 311.69 | ||||||||
Note: (t) = top, (b) = bottom.
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