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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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