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Table T1. Discrete sample paleomagnetic results, Hole U1346A.

Core, section,
interval (cm)
Depth
(mbsf)
Flow
unit
Lithology Analysis
location
Demagnetization
treatment
Steps
(mT, °C)
N Inc anc
(°)
MAD anc
(°)
Inc
(°)
MAD
(°)
324-U1346A-
6R-1, 83–85 139.73 19 Highly vesicular basalt WWU AF 25–60 8 –24.0 3.0 –23.4 2.8
6R-1, 111–113 140.01 20 Vesicular aphyric basalt Shipboard TH 300–475 6 –26.4 1.7    
7R-1, 53.5–55.5 142.24 22 Aphyric amygdaloidal pillow basalt Shipboard TH 300–475 6 –20.5 2.4    
7R-1, 92–94 142.62 23 Aphyric amygdaloidal pillow basalt Shipboard TH 300–425 4 –9.8 2.3    
7R-2, 39–41 143.50 23 Aphyric amygdaloidal pillow basalt Shipboard AF 10–60 8 –19.0 0.8    
7R-3, 49–51 145.10 24 Aphyric amygdaloidal pillow basalt WWU TH 310–450 4 –18.9 1.9 –18.6 2.4
7R-4, 12–14 145.59 26 Aphyric amygdaloidal pillow basalt Shipboard TH 300–425 4 –25.7 1.5    
7R-4, 53–55 146.00 26 Aphyric amygdaloidal pillow basalt WWU AF 20–50 7 27.6 1.1 27.7 1.2
8R-1, 136–138 149.96 31 Vesicular aphyric basalt WWU TH 280–450 5 –24.0 2.2 –23.7 2.5
8R-2, 11–13 150.13 31 Vesicular aphyric basalt Shipboard TH 200–525 9 –18.9 3.0    
9R-1, 104.5–106.5 155.88 32 Vesicular/amygdaloidal aphyric basalt WWU TH 220–450 6 –21.9 4.9 –21.1 6.1
9R-2, 95–98 155.78 32 Vesicular/amygdaloidal aphyric basalt Shipboard TH 300–450 5 –13.4 3.3    
10R-1, 21.5–23.5 158.42 34 Aphyric amygdaloidal basalt Shipboard AF 10–100 11 –20.8 3.6    
10R-1, 40–42 158.60 34 Aphyric amygdaloidal basalt WWU AF 10–50 9 –26.9 1.1 –26.9 1
10R-2, 75–77 158.74 35 Aphyric amygdaloidal basalt WWU TH 310–440 4 –26.5 6.0 –26.2 6.4
11R-1, 35–37 163.35 36 Aphyric pillow basalt Shipboard TH 300–450 6 –17.7 6.2    
11R-1, 97–99 163.97 37 Aphyric pillow basalt WWU AF 15–55 9 –16.1 1.8 –15.8 1.8
13R-1, 5–7 172.55 37 Aphyric pillow basalt WWU AF 25–50 6 –5.9 2.9 –4 1.7
13R-1, 76–78 173.26 38 Aphyric amygdaloidal pillow basalt Shipboard TH 300–500 8 –21.5 3.0    
13R-2, 38–41 174.15 39 Aphyric amygdaloidal pillow basalt Shipboard AF 10–100 11 –15.7 1.6    
13R-2, 59–61 174.36 40 Aphyric amygdaloidal pillow basalt WWU AF 20–55 10 –29.1 1.3 –29.2 1.3
14R-1, 14–16 177.54 40 Aphyric amygdaloidal pillow basalt Shipboard TH 300–500 7 –22.3 1.6    
14R-1, 136–138 178.76 45 Aphyric amygdaloidal basalt WWU TH 400–540 7 –26.5 4.0 –26.2 4.3
14R-2, 32–34 179.16 46 Aphyric amygdaloidal basalt Shipboard TH 100–525 11 –24.1 1.7    
14R-2, 121–123 180.05 47 Aphyric amygdaloidal basalt Shipboard TH 100–475 9 –24.3 2.2    
15R-1, 6–9 182.26 50 Aphyric amygdaloidal basalt Shipboard AF 10–80 10 –17.2 0.7    
16R-1, 78–80 187.78 52 Aphyric amygdaloidal basalt WWU AF 25–55 7 –23.1 2.9 –24 1.7
16R-2, 35–37 188.31 54 Aphyric amygdaloidal basalt WWU TH 310–450 4 –20.5 0.7 –20.6 0.9
16R-2, 89–91 188.85 56 Aphyric amygdaloidal basalt Shipboard TH 300–525 9 –31.8 3.4    

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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