Table T13. Summary of AF demagnetization results for discrete samples, Hole U1409A.
|
Core, section, interval (cm) |
Depth (mbsf) |
Declination 20 mT or PCA (°) |
Inclination 20 mT or PCA (°) |
PCA MAD (°) |
PCA range (mT) |
NRM 20 mT (A/m) |
Measurement error (%) |
|---|---|---|---|---|---|---|---|
| 342-U1409A- | |||||||
| 2H-3W, 75–77 | 4.86 | –22.1 | 63.5 | 8.8 | 10–60 | 1.47E–02 | 3.5 |
| 2H-6W, 75–77 | 9.36 | 181.8 | –48.9 | 8.52E–03 | 4.6 | ||
| 3H-2W, 75–77 | 12.86 | 208.2 | –39.2 | 7.0 | 10–40 | 1.38E–02 | 2.9 |
| 3H-5W, 75–77 | 17.36 | 164.5 | 66.7 | 2.54E–03 | 3.6 | ||
| 4H-3W, 75–77 | 23.86 | 14.5 | 33.4 | 3.72E–04 | 14.9 | ||
| 4H-5W, 75–77 | 26.86 | 38.4 | 47.9 | 5.74E–03 | 3.6 | ||
| 5H-1W, 75–77 | 30.36 | 50.1 | 0.8 | 3.45E–05 | 3.3 | ||
| 5H-2W, 75–77 | 31.86 | 45.3 | –28.6 | 3.28E–05 | 5.1 | ||
| 5H-3W, 70–72 | 33.31 | 4.6 | 56.6 | 1.60E–04 | 3.9 | ||
| 5H-4W, 75–77 | 34.86 | 1.4 | 50.0 | 1.29E–05 | 24.0 | ||
| 5H-5W, 75–77 | 36.36 | 20.7 | 58.6 | 2.07E–05 | 11.7 | ||
| 5H-6W, 75–77 | 37.86 | –64.0 | 49.6 | 1.85E–05 | 18.0 | ||
| 6H-1W, 74–76 | 39.85 | 202.9 | 60.9 | 3.27E–05 | 15.9 | ||
| 6H-2W, 74–76 | 41.35 | 41.1 | –26.6 | 2.39E–05 | 15.3 | ||
| 6H-3W, 88–90 | 42.99 | –6.5 | –53.3 | 2.10E–05 | 10.7 | ||
| 6H-4W, 72–74 | 44.33 | 221.2 | –79.0 | 4.53E–05 | 6.4 | ||
| 6H-5W, 74–76 | 45.85 | 228.9 | 0.7 | 5.63E–04 | 7.1 | ||
| 7H-3W, 74–76 | 52.35 | –70.1 | 32.8 | 1.98E–05 | 15.1 | ||
| 7H-6W, 74–76 | 56.87 | –24.4 | 72.1 | 2.74E–05 | 15.7 | ||
| 8H-1W, 74–76 | 58.85 | 136.3 | –59.5 | 4.12E–05 | 9.8 | ||
| 8H-2W, 80–82 | 60.41 | 70.4 | –2.8 | 2.23E–05 | 21.5 | ||
| 8H-3W, 74–76 | 61.85 | 135.4 | –43.5 | 2.95E–05 | 13.5 | ||
| 8H-5W, 74–76 | 64.85 | 140.3 | –52.2 | 2.67E–05 | 21.7 | ||
| 9H-2W, 86–88 | 69.97 | 183.3 | –21.8 | 4.06E–04 | 3.2 | ||
| 9H-3W, 74–76 | 71.36 | 190.0 | 6.4 | 5.7 | 20–60 | 3.22E–03 | 2.7 |
| 9H-4W, 74–76 | 72.86 | 204.3 | –22.6 | 5.01E–03 | 3.4 | ||
| 9H-5W, 74–76 | 74.36 | 213.9 | –47.2 | 1.21E–04 | 1.9 | ||
| 9H-6W, 74–76 | 75.86 | 195.0 | –25.0 | 3.32E–05 | 8.7 | ||
| 10H-1W, 74–76 | 77.85 | 156.4 | –27.7 | 4.22E–05 | 7.2 | ||
| 10H-2W, 74–76 | 79.35 | 174.7 | –38.9 | 1.66E–05 | 20.1 | ||
| 10H-3W, 74–76 | 80.85 | 152.3 | –36.2 | 3.32E–05 | 8.8 | ||
| 10H-4W, 74–76 | 82.35 | 160.3 | –21.2 | 4.13E–05 | 6.4 | ||
| 10H-5W, 74–76 | 83.85 | 257.1 | –58.2 | 1.21E–05 | 34.9 | ||
| 10H-6W, 64–66 | 85.25 | 154.3 | –8.5 | 1.77E–05 | 15.2 | ||
| 11H-1W, 74–76 | 87.35 | 245.4 | –17.9 | 2.04E–03 | 7.2 | ||
| 11H-3W, 74–76 | 90.35 | 32.2 | 45.3 | 3.1 | 20–60 | 3.79E–03 | 4.8 |
| 11H-5W, 83–85 | 93.44 | 10.2 | 48.5 | 6.41E–05 | 9.0 | ||
| 12H-1W, 74–76 | 96.85 | –84.6 | 53.0 | 4.30E–05 | 10.3 | ||
| 12H-3W, 74–76 | 99.85 | –65.7 | 44.6 | 7.49E–05 | 4.7 | ||
| 12H-5W, 74–76 | 102.85 | 231.8 | –45.8 | 4.91E–05 | 12.8 | ||
| 13H-1W, 74–76 | 106.35 | 147.9 | –48.4 | 9.51E–05 | 4.8 | ||
| 13H-3W, 74–76 | 109.39 | 17.2 | 54.8 | 9.8 | 10–60 | 9.53E–05 | 9.0 |
| 13H-5W, 74–76 | 112.39 | 138.5 | –35.7 | 6.02E–04 | 2.7 | ||
| 14H-2W, 74–76 | 117.35 | –18.2 | –69.5 | 4.73E–04 | 6.9 | ||
| 14H-3W, 74–76 | 118.85 | 85.4 | 53.6 | 8.86E–04 | 3.9 | ||
| 14H-4W, 78–80 | 120.39 | –49.2 | –20.3 | 7.93E–04 | 7.9 | ||
| 14H-5W, 74–76 | 121.85 | 9.0 | 46.9 | 2.08E–03 | 3.5 | ||
| 14H-6W, 74–76 | 123.35 | 1.3 | 45.0 | 2.05E–03 | 3.9 | ||
| 14H-7W, 29–31 | 124.40 | 14.7 | 42.6 | 1.52E–03 | 3.2 | ||
| 15H-1W, 63–65 | 125.24 | 255.3 | 77.0 | 1.14E–03 | 3.4 | ||
| 17X-1W, 82–84 | 127.83 | –24.0 | –47.9 | 2.64E–04 | 10.0 | ||
| 17X-3W, 55–57 | 130.56 | 27.8 | –20.0 | 6.17E–04 | 2.3 | ||
| 18X-2W, 73–75 | 133.84 | –5.8 | 16.8 | 4.16E–04 | 6.5 | ||
| 18X-3W, 96–98 | 135.57 | –50.4 | 51.5 | 4.49E–04 | 5.8 | ||
| 18X-5W, 40–42 | 138.01 | –1.1 | –25.0 | 9.17E–04 | 5.2 | ||
| 20X-2W, 70–72 | 153.01 | 46.4 | 22.9 | 2.09E–03 | 1.7 | ||
| 20X-3W, 35–37 | 154.16 | 4.3 | –13.0 | 1.06E–03 | 5.2 | ||
| 20X-4W, 29–31 | 155.60 | –2.8 | –26.8 | 7.61E–04 | 5.9 | ||
| 20X-5W, 75–77 | 157.56 | 35.6 | 12.6 | 3.84E–04 | 2.1 | ||
| 20X-6W, 75–77 | 159.06 | –21.3 | 33.5 | 1.97E–04 | 6.8 | ||
| 21X-1W, 63–65 | 161.04 | 42.6 | –20.9 | 1.58E–04 | 1.5 | ||
| 22X-1W, 62–64 | 170.63 | –2.1 | –65.2 | 1.36E–04 | 8.2 | ||
| 22X-3W, 117–119 | 174.18 | –43.4 | –60.2 | 3.66E–04 | 7.9 | ||
| 22X-5W, 71–73 | 176.72 | –14.6 | –25.4 | 3.39E–04 | 6.6 | ||
| 22X-6W, 66–68 | 178.17 | 11.6 | 18.4 | 9.81E–04 | 3.6 | ||
| 23X-2W, 59–61 | 181.70 | –23.4 | –25.3 | 9.63E–04 | 6.3 | ||
| 23X-4W, 73–75 | 184.84 | 27.3 | –24.5 | 1.56E–03 | 2.7 | ||
| 23X-5W, 52–54 | 186.13 | 22.0 | –41.2 | 8.76E–04 | 4.2 | ||
| 23X-6W, 38–40 | 187.49 | 0.8 | –19.3 | 1.73E–03 | 4.4 | ||
| 24X-2W, 70–72 | 191.41 | –26.2 | –29.2 | 2.36E–03 | 6.2 | ||
| 24X-4W, 74–76 | 194.45 | 156.6 | –68.1 | 8.10E–04 | 5.3 | ||
| 24X-5W, 75–77 | 195.96 | –37.8 | –54.8 | 5.20E–05 | 7.3 | ||
| 26X-1W, 32–34 | 199.63 | –14.9 | –25.6 | 6.49E–05 | 7.0 | ||
Declinations for Cores 2H to 15H in geographic coordinates. PCA = principal component analysis, MAD = maximum angle of deviation, NRM = natural remanent magnetism.
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