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Table T2. Discrete sample paleomagnetic results, Hole U1347A.

Core, section,
interval (cm)
Depth
(mbsf)
Flow
unit
Lithology Analysis
location
Demagnetization
treatment
Steps
(mT, °C)
N Inc anc
(°)
MAD anc
(°)
Inc
(°)
MAD
(°)
324-U1347A-
12R-1, 20.5–22.5 159.90 4 Aphyric basalt Shipboard AF 12–100 10 –2.3 4.9    
12R-1, 33–35 159.93 4 Aphyric basalt Shipboard TH 475–600 6 18.8 12.3    
12R-1, 69–71 160.29 4 Aphyric basalt Shipboard AF 12–100 10 –14.2 1.2    
12R-1, 78–80 160.38 4 Aphyric basalt Shipboard AF 25–100 7 –1.4 3.7    
12R-1, 93–95 160.53 4 Aphyric basalt WWU TH 310–520 7 54.1 4.4 56.3 3.2
12R-1, 104–106 160.64 4 Aphyric basalt WWU AF 25–60 7 4.4 2.9 4.4 2.9
12R-2, 2–4 160.96 4 Aphyric basalt WWU AF 20–65 10 4.1 3.3 3.8 2.9
12R-2, 9–11 161.03 4 Aphyric basalt Shipboard AF 10–100 11 7.9 3.3    
12R-2, 42–44 161.36 4 Aphyric basalt Shipboard TH 400–600 10 34.0 4.7    
12R-2, 81–83 161.75 4 Aphyric basalt WWU TH 480–550 6 4.6 6.2 4.6 6.2
13R-1, 7–9 167.07 4 Aphyric basalt WWU TH 310–520 7 42.0 7.5 46.6 3.6
13R-1, 24–26 167.24 4 Aphyric basalt Shipboard TH 500–600 5 26.1 5.8    
13R-2, 14–16 168.63 4 Aphyric basalt WWU AF 20–60 8 13.7 3.5 15.5 3.4
13R-2, 90–92 169.39 4 Aphyric basalt Shipboard TH 500–600 5 50.2 5.7    
13R-3, 23–25 170.05 4 Aphyric basalt WWU TH 360–520 6 18.4 6.8 18.5 9.6
13R-4, 2–4 170.96 4 Aphyric basalt Shipboard AF 15–120 11 23.0 2.5    
13R-6, 13–15 172.95 4 Aphyric basalt Shipboard TH 500–600 5 37.5 8.8    
13R-6, 132–136 174.14 4 Aphyric basalt WWU AF 40–110 9 18.5 3.2 17.5 3.5
14R-1, 51–53 177.11 5 Amygdaloidal basalt WWU AF 30–65 8 13.3 5.1 14 6.8
14R-1, 84–86 177.44 5 Amygdaloidal basalt WWU TH 360–550 9 14.3 11.2 14.5 13.6
14R-1, 145–147 178.05 5 Amygdaloidal basalt Shipboard TH 350–600 10 23.3 11.0    
14R-2, 110–112 179.17 5 Amygdaloidal basalt WWU TH 310–520 7 13.8 1.4 13.8 1.5
15R-1, 13–15 186.33 5 Amygdaloidal basalt Shipboard TH 500–600 5 26.7 5.5    
15R-2, 15–17 187.62 7 Amygdaloidal basalt WWU AF 20–80 10 23.7 1.2 23.6 1.3
16R-1, 21–23 195.01 9 Amygdaloidal basalt WWU TH 360–520 6 37.3 4.2 35.4 5.7
16R-1, 89–91 195.69 9 Amygdaloidal basalt Shipboard TH 500–600 5 39.1 7.3    
16R-2, 14–16 196.44 9 Amygdaloidal basalt WWU AF 30–70 7 18.6 4.2 18.3 4.8
16R-3, 29–31 198.07 9 Amygdaloidal basalt WWU TH 280–450 5 64.3 6.4 68.2 4.9
16R-4, 10–12 198.37 9 Amygdaloidal basalt Shipboard TH 475–600 6 3.2 27.1    
16R-5, 107–109 200.65 9 Amygdaloidal basalt Shipboard AF 20–100 8 19.3 1.4    
16R-5, 116–118 200.74 9 Amygdaloidal basalt WWU AF 25–60 7 13.2 3.3 13.1 4.0
17R-2, 54–56 206.37 11 Plagioclase phyric basalt Shipboard TH 425–600 8 15.6 4.5    
17R-2, 94–96 206.77 11 Plagioclase phyric basalt WWU TH 310–520 7 15.1 3.0 15.4 3.4
17R-3, 86–88 208.15 11 Plagioclase phyric basalt WWU AF 20–70 9 18.0 1.4 18.1 1.4
17R-3, 107–109 208.36 11 Plagioclase phyric basalt Shipboard TH 500–600 5 16.0 4.7    
18R-1, 44–46 214.44 11 Plagioclase phyric basalt Shipboard AF 10–100 11 10.2 4.3    
18R-3, 75–77 217.34 11 Plagioclase phyric basalt Shipboard AF 10–100 11 12.9 1.1    
18R-3, 143–145 218.01 13 Aphyric amygdaloidal basalt WWU TH 280–450 5 33.0 5.4 27.3 4.6
18R-4, 54–56 218.58 14 Aphyric amygdaloidal basalt WWU AF 35–120 11 –2.0 1.4 –2.1 1.5
18R-5, 66–68 220.12 17 Sparsely plagioclase phyric basalt WWU TH 280–450 5 9.9 2.1 10.9 2.3
18R-5, 82–84 220.28 17 Sparsely plagioclase phyric basalt Shipboard TH 400–550 7 24.2 11.8    
18R-6, 34–36 221.24 19 Sparsely plagioclase phyric basalt WWU AF 30–100 10 12.5 1.9 12.6 2.2
19R-1, 32–34 223.92 20 Aphyric basalt Shipboard AF 15–80 8 20.8 9.0    
19R-1, 117–119 224.77 22 Aphyric basalt WWU TH 280–450 6 10.3 2.6 10.9 4.1
19R-2, 100–102 225.88 26 Aphyric basalt WWU AF 25–120 13 4.2 1.8 4.3 1.8
19R-3, 14–16 226.44 26 Aphyric basalt WWU TH 280–450 5 10.0 2.4 11.8 3.0
19R-4, 8–10 227.70 29 Aphyric basalt Shipboard TH 375–600 10 22.3 8.3    
19R-4, 20–22 227.82 29 Aphyric basalt WWU AF 35–100 9 0.9 1.1 1.2 1.3
20R-1, 22–24 233.42 30 Plagioclase phyric basalt WWU AF 25–100 11 8.7 2.5 8.8 2.7
20R-2, 44–46 235.08 33 Plagioclase phyric basalt WWU TH 280–450 5 24.3 2.4 25.9 2.1
20R-3, 5–7 235.90 33 Plagioclase phyric basalt WWU AF 25–100 11 5.5 2.7 5.8 3.0
20R-3, 46–48 236.31 34 Plagioclase phyric basalt Shipboard AF 25–100 7 3.8 3.9    
20R-3, 118–120 237.03 34 Plagioclase phyric basalt Shipboard TH 200–600 14 46.3 6.1    
21R-3, 72–74 245.21 37 Plagioclase phyric basalt Shipboard TH 300–500 9 5.9 5.9    
21R-3, 14–16 247.39 37 Plagioclase phyric basalt Shipboard AF 10–100 11 26.6 1.5    
21R-4, 12–14 246.11 37 Plagioclase phyric basalt WWU TH 310–450 4 25.8 3.8 33.2 2.6
21R-4, 121–123 253.61 40 Aphyric basalt Shipboard AF 12–60 8 24.3 1.2    
21R-5, 65–67 247.90 41 Aphyric basalt WWU AF 30–50 5 18.8 8.5 15.3 9.2
22R-1, 51–53 252.91 41 Aphyric basalt WWU TH 280–450 5 35.8 3.5 37.1 4.5
22R-2, 74–76 254.60 42 Amygdaloidal basalt WWU AF 15–45 7 14.7 1.0 14.8 1.0
22R-2, 95–97 254.81 42 Amygdaloidal basalt Shipboard TH 475–600 6 17.5 12.2    
22R-3, 70–72 255.97 42 Amygdaloidal basalt Shipboard TH 475–600 6 25.0 17.9    
22R-4, 12–14 256.84 42 Amygdaloidal basalt Shipboard TH 150–600 10 43.8 5.6    
22R-4, 135–137 258.06 42 Amygdaloidal basalt Shipboard AF 10–80 10 24.2 0.9    
22R-5, 9–11 258.19 42 Amygdaloidal basalt WWU AF 25–60 8 21.8 6.5 23.8 6.7
22R-5, 61–63 258.71 44 Plagioclase phyric basalt WWU TH 500–550 5 11.8 5.0 12.6 9.5
22R-5, 86–88 258.96 46 Plagioclase phyric basalt Shipboard TH 200–600 13 9.7 6.2    
23R-2, 76–78 262.98 48 Sparsely plagioclase phyric basalt Shipboard TH 425–600 8 15.9 7.0    
23R-2, 134–136 263.56 48 Sparsely plagioclase phyric basalt WWU TH 220–450 5 15.2 2.6 15.9 2.8
23R-3, 9–11 263.72 49 Sparsely plagioclase phyric basalt Shipboard TH 200–600 13 29.3 3.0    
23R-3, 34–36 265.38 49 Sparsely plagioclase phyric basalt Shipboard AF 20–120 9 13.0 3.5    
23R-3, 62–64 264.26 50 Sparsely plagioclase phyric basalt WWU AF 30–80 11 3.8 1.7 3.9 1.7
23R-4, 103–105 266.07 53 Sparsely plagioclase phyric basalt WWU TH 280–450 5 10.7 3.4 13.2 5.1
23R-6, 96–98 267.79 53 Sparsely plagioclase phyric basalt Shipboard TH 450–600 7 18.7 5.7    
24R-1, 34–36 271.94 53 Sparsely plagioclase phyric basalt Shipboard TH 350–600 11 39.7 19.0    
24R-3, 61–63 274.70 53 Sparsely plagioclase phyric basalt Shipboard AF 10–100 11 8.0 1.6    
24R-3, 136–138 275.45 56 Sparsely plagioclase phyric basalt WWU AF 40–75 8 0.8 2.4 0.7 3.0
24R-5, 41–43 277.38 57 Sparsely plagioclase phyric basalt Shipboard AF 20–140 9 16.4 2.5    
24R-5, 49–51 277.46 57 Sparsely plagioclase phyric basalt WWU TH 280–450 5 21.7 6.6 20.6 6.8
24R-6, 30–32 278.45 60 Sparsely plagioclase phyric basalt Shipboard AF 15–100 9 13.6 1.7    
24R-6, 69–71 278.84 60 Sparsely plagioclase phyric basalt WWU AF 30–55 6 15.4 7.8 18.4 7.0
24R-6, 90–92 279.05 60 Sparsely plagioclase phyric basalt Shipboard TH 200–600 10 32.3 6.4    
24R-7, 45–47 279.81 61 Sparsely plagioclase phyric basalt Shipboard TH 450–600 7 –7.1 0.7    
24R-8, 24–26 280.64 62 Sparsely plagioclase phyric basalt Shipboard TH 400–600 9 30.2 5.2    
24R-8, 65–67 281.05 64 Sparsely plagioclase phyric basalt WWU TH 360–550 9 13.5 14.9 14.3 16.2
24R-8, 127–129 281.67 65 Sparsely plagioclase phyric basalt WWU AF 25–60 8 7.7 2.7 7.8 3.0
25R-1, 44–46 281.64 65 Sparsely plagioclase phyric basalt Shipboard AF 15–100 9 13.9 2.9    
25R-1, 84–86 282.04 65 Sparsely plagioclase phyric basalt WWU AF 45–80 8 1.5 5.3 2.2 7.4
25R-2, 81–83 283.31 67 Sparsely plagioclase phyric basalt Shipboard TH 350–575 10 43.2 8.6    
25R-3, 65–67 284.53 68 Sparsely plagioclase phyric basalt Shipboard AF 20–80 7 6.2 4.3    
25R-4, 102–104 286.40 69 Sparsely plagioclase phyric basalt Shipboard TH 450–600 9 35.3 3.9    
25R-4, 125–127 286.63 70 Sparsely plagioclase phyric basalt WWU AF 25–75 11 5.2 1.3 5.3 1.2
25R-5, 59–61 287.34 71 Sparsely plagioclase phyric basalt Shipboard TH 300–600 13 48.9 4.6    
26R-1, 58–60 291.28 79 Sparsely plagioclase phyric basalt Shipboard TH 475–600 6 –10.4 12.8    
26R-1, 103–105 291.73 79 Sparsely plagioclase phyric basalt WWU TH 310–450 4 8.0 2.3 9.3 3.3
26R-2, 29–31 292.49 81 Sparsely plagioclase phyric basalt WWU AF 25–65 9 –4.0 2.9 –2.6 3.1
26R-2, 84–86 293.04 81 Sparsely plagioclase phyric basalt Shipboard TH 150–350 6 80.4 4.6    
27R-2, 23–25 294.74 81 Sparsely plagioclase phyric basalt Shipboard AF 20–80 7 14.1 5.1    
27R-2, 78–80 295.29 81 Sparsely plagioclase phyric basalt WWU AF 20–65 10 10.3 4.2 7.1 3.4
27R-3, 8–10 295.69 81 Sparsely plagioclase phyric basalt WWU TH 360–450 3 1.4 7.9 43.5 26.3
27R-3, 65–67 296.24 81 Sparsely plagioclase phyric basalt WWU AF 30–50 5 –7.9 3.4 –3.2 14.2
27R-4, 63–65 297.10 81 Sparsely plagioclase phyric basalt Shipboard TH 450–600 9 –38.7 44.8    
27R-5, 4–6 297.90 81 Sparsely plagioclase phyric basalt WWU AF 25–65 9 –1.7 2.8 –1.0 3.2
27R-5, 120–122 299.06 81 Sparsely plagioclase phyric basalt WWU TH 120–310 5 88.5 1.6 88.3 1.5
27R-6, 22–24 299.37 81 Sparsely plagioclase phyric basalt WWU AF 15–45 7 21.4 10.6 24.1 11.0
27R-6, 123–125 300.38 81 Sparsely plagioclase phyric basalt Shipboard TH 150–325 5 55.6 7.2    
28R-1, 8–10 300.48 81 Sparsely plagioclase phyric basalt WWU TH 220–450 6 80.3 2.2 81.0 1.4
28R-1, 67–69 301.07 81 Sparsely plagioclase phyric basalt Shipboard AF 12–60 8 79.3 4.5    
28R-2, 28–30 301.92 81 Sparsely plagioclase phyric basalt WWU AF 20–45 6 19.9 7.1 20.9 7.7
28R-3, 44–46 303.39 81 Sparsely plagioclase phyric basalt Shipboard TH 450–550 7 –6.9 14.1    
28R-5, 16–18 305.61 81 Sparsely plagioclase phyric basalt Shipboard AF 20–50 5 26.5 9.5    
28R-6, 49–51 307.15 81 Sparsely plagioclase phyric basalt Shipboard TH 425–600 8 –75.7 22.6    
28R-7, 13–15 308.11 81 Sparsely plagioclase phyric basalt WWU TH 180–310 6 82.1 1.9 82.2 1.7
28R-8, 80–82 310.04 81 Sparsely plagioclase phyric basalt Shipboard AF 7–60 10 77.8 10.2    
29R-1, 23–25 310.13 81 Sparsely plagioclase phyric basalt Shipboard TH 350–600 11 25.4 25.1    
29R-3, 68–70 312.89 81 Sparsely plagioclase phyric basalt WWU AF 15–40 6 64.2 4.6 65.4 3.5
29R-4, 57–59 314.22 81 Sparsely plagioclase phyric basalt Shipboard TH 150–325 5 63.4 4.1    
29R-4, 142–144 315.07 82 Sparsely plagioclase phyric basalt Shipboard TH 350–600 11 30.7 2.6    
29R-5, 86–88 316.01 82 Sparsely plagioclase phyric basalt WWU AF 35–55 5 9.3 7.4 5.3 10.3

AF = alternating field, TH = thermal demagnetization, Steps = demagnetization steps used to calculate principal component direction, N = number of points in used in principle component calculation, Inc = inclination, MAD = maximum angular deviation, anc = principal component analysis calculated with anchor at origin. WWU = Northwest Paleomagnetism Laboratory at Western Washington University (USA).

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