Table T5. Summary of paleomagnetic analyses of cores recovered, Hole 1243B.
Core, section
Type
Max.
treat.
(mT)*
Depth
in core
(cm)
Depth
(mbsf)
NRM
without
treatment
(A/m)
Dec
(°)
Inc
(°)
MAD
(°)
Interval
used
(mT)*
Mean
Inc
(°)
MAD
(°)
Mean
depth of
sample (mT)
203-1243B-










2R-1 Long 60 76 109.36 1.56 142.7 4.8 0.4 50-60




60 78 109.38 1.49 141.8 5.2 0.5 50-60




60 80 109.40 1.30 139.9 8.2 0.8 50-60 6.1 1.8 109.38
2R-1 Disc 70 78 109.38 1.94 -33.6 4.6 2.5 40-70 4.6 2.5 109.38
3R-1 Long 60 13 113.33 2.69 253.3 16.6 1.8 40-60




60 15 113.35 2.75 253.7 17.7 1.9 35-60




60 17 113.37 2.46 249.6 21.8 2.4 40-60 21.2 5.6 113.35


60 19 113.39 2.31 243.6 28.9 1.9 50-60


3R-1 Disc 70 14 113.34 3.51 57.6 -0.3 1.1 60-70 -0.3 1.1 113.34
3R-2 Disc 55 6 114.76 1.02 -13.0 0.5 0.5 50-55 0.5 0.5 114.76
3R-2 Disc 580°C 6 114.76 2.68 -6.7 6.9 6.5 500°-580°C


3R-2 Long 40 84 115.54 2.21 44.9 18.5 1.0 35-40




40 88 115.58 3.10 51.1 28.9 0.8 35-40 23.7 7.3 115.56
3R-2 Disc 70 89 115.59 1.82 240.5 -9.1 5.6 50-70 -9.1 5.6 115.59
3R-2 Long 40 32 118.52 5.92 14.7 14.3 1.2 15-40




40 36 118.56 5.28 19.4 21.5 2.1 20-40




40 40 118.60 2.92 30.5 23.2 1.8 30-40




40 44 118.64 1.39 35.3 24.1 2.0 30-44 20.7 4.4 118.58
4R-2 Disc 70 70 120.40 2.31 246.9 21.9 5.1 35-70 21.9 5.1 120.40
5R-1 Disc 70 15 122.85 2.13 49.7 9.8 5.4 50-70 9.8 5.4 122.85
5R-1 Long 70 28 122.98 3.71 49.4 8.2 2.6 40-70




70 32 123.02 3.77 54.7 10.0 1.4 50-70




70 44 123.14 3.58 189.6 34.5 2.6 50-70




70 48 123.18 3.36 183.0 23.5 1.9 50-70 19.0 12.3 123.08
5R-1 Disc 55 47 123.17 4.31 7.5 2.0 0.4 50-55 2.0 0.4 123.17
5R-1 Disc 580°C 47 123.17 2.62 13.2 -0.5 2.0 425°-580°C 2.0 0.4 123.17
5R-2 Long 70 26 124.43 3.74 64.6 14.2 4.2 40-70




70 30 124.47 4.27 68.5 17.8 3.8 40-70




70 34 124.51 2.97 91.8 22.2 2.1 50-70




70 32 124.49 3.64 73.9 22.9 4.4 40-70




70 38 124.55 2.52 125.0 11.5 1.1 50-70




70 42 124.59 3.14 125.6 8.6 1.2 50-70 16.2 5.8 124.51
6R1 Disc 70 69 128.39 6.56 56.3 4.5 3.0 60-70 4.5 4.5 128.39
7R-1 Disc 55 106 138.46 2.93 268.1 -1.0 0.8 50-55 -1.0 0.8 138.46
7R-2 Long 50 10 138.87 2.44 222.4 19.3 2.4 40-50




50 12 138.89 2.83 222.3 21.5 2.6 40-50




50 14 138.91 2.89 222.6 23.6 2.6 40-50




50 16 138.93 2.63 223.0 24.7 2.4 40-50 22.3 2.4 138.90
7R-2 Long 50 38 139.15 4.05 -19.9 7.9 6.1 35-50




50 40 139.17 5.60 -17.1 6.5 4.6 35-50




50 42 139.19 6.80 -15.3 5.3 3.7 35-50 6.6 1.3 139.16
7R-2 Long 50 58 139.35 7.09 254.0 8.3 0.6 35-50




50 62 139.39 4.66 258.6 12.4 1.8 35-50




50 64 139.41 3.73 263.3 15.8 3.0 35-50




50 66 139.43 3.10 268.5 15.7 4.0 35-50 13.0 3.5 139.40
7R-2 Long 50 90 139.67 4.66 -10.8 6.7 4.2 40-50




50 94 139.71 5.56 -15.8 9.9 5.6 40-50 8.3 2.3 139.69
7R-2 Disc 55 96 139.73 3.26 191.3 1.1 1.0 50-55 1.1 1.0 139.73
7R-3 Long 50 4 140.26 4.62 146.4 6.1 0.2 40-50




50 8 140.30 5.99 146.9 4.7 0.3 40-50




50 12 140.34 5.62 148.9 4.6 0.3 40-50 5.1 0.8 140.30
7R-3 Long 50 22 140.44 5.59 9.6 3.5 0.2 40-50




50 26 140.48 6.32 12.2 7.7 0.4 40-50




50 30 140.52 5.07 15.8 11.3 0.8 40-50




50 34 140.56 4.29 18.3 14.2 1.1 40-50




50 38 140.60 4.43 18.3 17.5 2.7 35-50




50 42 140.64 5.90 18.7 14.5 2.2 35-50




50 46 140.68 6.52 19.2 11.0 1.6 35-50 11.4 4.7 140.56
7R-3 Disc 55 37 140.59 4.74 192.9 0.1 10.0 55 0.1 10.0 140.59
9R-1 Disc 55 11 147.11 3.49 51.8 6.9 0.1 50-55 6.9 0.1 147.11
9R-1 Long 55 132 148.32 2.28 263.9 11.0 3.4 35-50




55 134 148.34 2.81 254.5 9.4 2.3 40-50




55 136 148.36 3.05 248.3 8.4 1.7 40-50 9.6 1.3 148.34
9R-2 Disc 55 12 148.62 5.65 222.0 -2.1 0.4 50-55 -2.1 0.4 148.62
9R-2 Disc 580°C 12 148.62 5.44 220.9 -0.3 1.5 400°-580°C -2.1 0.4 148.62
9R-2 Long 50 18 148.68 3.94 79.1 5.5 0.6 35-50




50 22 148.72 3.14 91.2 6.2 2.4 40-50




50 26 148.76 2.81 88.2 6.9 2.6 40-50





30 148.80 1.80 86.4 9.9 3.2 40-50 7.1 1.9 148.74
9R-2 Disc 55 75 149.25 3.34 13.7 -1.3 1.1 50-55 -1.3 1.1 149.25
9R-2 Long 50 50 149.00 2.72 159.3 2.7 2.5 40-50




50 55 149.05 3.44 160.4 2.1 2.2 40-50




50 60 149.10 2.02 162.0 0.5 2.7 40-50




50 65 149.15 2.07 278.6 2.6 6.3 35-50




50 70 149.20 1.59 227.7 7.0 3.0 35-50




50 75 149.25 2.51 196.2 2.5 3.1 35-50




50 80 149.30 1.98 189.7 3.4 2.3 40-50




50 85 149.35 1.11 190.2 4.7 2.0 40-50




50 90 149.40 1.94 205.3 3.5 1.2 40-50




50 95 149.45 3.65 234.2 5.0 0.4 40-50




50 100 149.50 4.03 238.1 4.6 0.3 40-50




50 105 149.55 4.01 239.6 4.1 0.2 40-50




50 110 149.60 2.81 239.0 4.2 0.3 40-50




50 115 149.65 1.67 233.1 4.8 0.3 40-50




50 120 149.70 2.00 235.1 3.8 0.4 40-50 3.7 1.5 149.35
9R-2 Long 50 140 149.90 4.67 243.4 4.7 0.3 40-50




50 142 149.92 5.41 244.0 4.9 0.5 40-50




50 144 149.94 7.09 245.3 5.9 1.0 40-50 5.2 0.6 149.92
10R-1 Disc 55 27 151.77 2.92 270.0 3.9 1.1 45-55 3.9 1.1 151.77
10R-2 Disc 55 9 152.83 1.52 187.0 -49.0 0.2 50-55 -49.0 0.2 152.83
10R-2 Long 50 10 152.84 3.07 9.3 -28.0 1.9 40-50




50 14 152.88 3.01 7.8 -25.0 1.8 40-50 -26.5 2.1 152.86
10R-2 Long 50 20 152.94 2.52 9.6 -23.9 1.8 40-50




50 25 152.99 2.67 14.5 -22.8 1.6 40-50




50 30 153.04 2.90 17.7 -18.6 0.6 40-50 -21.8 2.8 152.99
11-R1 Disc 55 90 157.40 3.41 159.7 -3.3 3.4 40-55 -3.3 3.4 157.40
12R-1 Disc 55 85 160.45 1.93 75.3 -12.7 2.0 40-55 -12.7 2.0 160.45
12R-1 Disc 55 88 160.48 6.13 72.8 -5.7 1.0 50-55 -5.7 1.0 160.48
12R-1 Disc 580°C 88 160.48 2.25 86.0 -11.6 2.8 425°-580°C -5.7 1.0 160.48
12R-1 Long 50 40 160.00 1.62 48.6 -5.7 1.9 40-50




50 44 160.04 2.70 53.6 -3.2 1.9 40-50




50 48 160.08 2.76 50.3 -1.5 1.6 40-50 -3.5 2.1 160.40
12R-1 Long 50 130 160.90 4.07 109.0 0.0 0.6 35-50




50 132 160.92 5.29 108.4 0.4 0.9 35-50




50 134 160.94 5.89 107.5 1.2 1.2 35-50 0.5 0.6 160.92
13R-1 Long 50 34 166.44 NA 306.0 0.8 0.8 40-50




50 36 166.46 NA 305.8 3.5 0.6 40-50




50 38 166.48 NA 305.1 6.1 0.6 40-50




50 40 166.50 NA 304.5 9.5 0.6 40-50 5.0 3.7 166.47
13R-1 Disc 55 62 166.72 8.37 59.6 -18.6 0.4 30-55 -18.6 0.4 166.72
14R-1 Disc 55 36 171.16 8.18 -42.9 -3.5 0.8 45-55 -3.5 0.8 171.16
15R-1 Disc 55 7 175.97 6.55 34.5 17.0 1.7 45-55 17.0 1.7 175.97
15R-1 Disc 55 98 176.88 0.67 225.5 13.0 0.5 40-55 13.0 0.5 176.88
15R-1 Disc 580°C 98 176.88 1.06 248.3 19.1 6.0 375°-580°C 13.0 0.5 176.88
17R-1 Disc 55 17 185.57 0.69 266.9 17.4 1.0 45-55 17.4 1.0 185.57

Notes: All values mT, except where noted. Natural remanent magnetization (NRM) intensity without treatment, ChRM direction (Dec [Declination] and Inc [Inclination]), and maximum angular deviation (MAD) angle (which is a measure of how well the vector demagnetization data fit a line) are listed for selected basalt pieces. Long = long core section, Disc = discrete sample. * = except where noted. NA = not available. Max. treat. = maximum treatment. This table is also available in ASCII.