Table T21. Lithologic features and magnetic reversal boundaries used for correlating Holes U1312A and U1312B.
| Feature description | Hole U1312A | Hole U1312B | MIS | ||
|---|---|---|---|---|---|
| Core, section, interval (cm) |
Depth (mbsf) |
Core, section, interval (cm) |
Depth (mbsf) |
||
| Dark/light contact | 1H-1, 133 | 1.33 | 2H-1, 133 | 5.23 | 5/6 |
| Dark band (~2 cm thick) above light unit | 2H-2, 99 | 6.39 | 8/9 | ||
| Diffuse dark/light contact | 2H-3, 114 | 8.04 | 9/10 | ||
| Gray/white contact | 2H-4, 130 | 9.7 | 10/11 | ||
| Diffuse light/dark contact with another gray/brownish gray contact below | 2H-5, 132 | 16.82 | 3H-1, 47 | 13.87 | 13/14 |
| Dark/light contact | 2H-6, 21 | 17.21 | 3H-2, 25 | 15.15 | 14/15 |
| Light/dark contact | 2H-6, 33 | 17.33 | 3H-2, 70 | 15.6 | 15/16 |
| Brunhes/Matuyama | 2H-6, 140 | 18.4 | 3H-3, 55 | 16.96 | 19.3 |
| Top Jaramillo | 3H-6, 15 | 21.05 | 28 | ||
| Base Jaramillo | 4H-2, 45 | 24.85 | 31 | ||
| Thin turbidite | 4H-3, 88 | 32.38 | 5H-1, 87 | 33.26 | |
| Top of foraminifer turbidite | 13H-3, 110 | 118.1 | 13H-4, 122 | 114.12 | |
| Base of foraminifer turbidite | 13H-4, 38 | 118.5 | 13H-5, 4 | 114.44 | |
Notes: Contacts are described as young/old (e.g., dark/light is a darker layer overlying a lighter layer). MIS = marine isotope stage in which the lithologic feature or magnetic reversals occur.
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