Table T20. Polarity boundaries, Site U1385.
| Polarity boundary |
Age (Ma) |
Hole U1385A | Hole U1385B | Hole U1385D | Hole U1385E | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Core, section, interval (cm) |
Depth (mbsf) |
Depth (mcd) |
Core, section, interval (cm) |
Depth (mbsf) |
Depth (mcd) |
Core, section, interval (cm) |
Depth (mbsf) |
Depth (mcd) |
Core, section, interval (cm) |
Depth (mbsf) |
Depth (mcd) |
||
| 339-U1385A- | 339-U1385B- | 339-U1385D- | 339-U1385E- | ||||||||||
| Brunhes/Matuyama | 0.781 | 11H-5, ~80 | 93.8 | 102.68 | 11H-1, ~20 | 91.8 | 102.73 | 11H-6, ~36 | 97.3 | 102.89 | 12H-1, ~0 | 92.0 | 103.85 |
| T Jaramillo | 0.988 | 13H-1, ~80 | 106.8 | 115.48 | 12H-1, ~10 | 101.2 | 113.08 | 12H-6, ~82 | 107.3 | 113.92 | 13H-1, ~0 | 101.5 | 113.92 |
| B Jaramillo | 1.072 | 14H-2, ~68 | 117.7 | 126.92 | 13H-2, ~130 | 113.4 | 126.36 | 13H-6, ~30 | 116.3 | 125.71 | 14H-1, ~20 | 111.2 | 124.95 |
| T Cobb Mountain | 1.173 | 15H-4, ~143 | 131.0 | 140.90 | 14H-6, ~133 | 129.0 | 141.61 | 14H-7, ~44 | 127.4 | 138.58 | 16H-2, ~70 | 130.8 | 143.02 |
| B Cobb Mountain | 1.185 | 15H-5, ~129 | 132.4 | 142.30 | 15H-2, ~105 | 132.1 | 144.68 | 15H-2, ~139 | 130.3 | 141.89 | 16H-3, ~69 | 132.3 | 144.52 |
Bold = relatively well defined boundaries. T = top, B = bottom.
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