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Table T9. Paleomagnetic data from the igneous section, Hole U1301B.

Core, section,
interval (cm) 		Depth
(mbsf)		 NRM
(A/m) 		PCA
(°)		 Demag.
type		 N Demag. steps
(mT/°C) 		MAD
(°)		 Qual.
301-U1301B-







1R-1, 70 351.88 5.71 63.2 AF 5 15–35 2.8 A1
1R-1, 72 351.90 4.51 56.0 TH 5 300–475 2.2 A1
1R-1, 87 352.07 4.16 50.1 AF 4 25–40 2.1 A1
1R-1, 92 352.12 8.22 58.2 TH 5 300–475 1.6 A1
1R-1, 120 352.40 4.71 72.7 AF 4 15–25 0.9 C2
1R-1, 130 352.50 12.59 68.7 AF 7 20–50 1.6 A1
2R-1, 17 357.27 4.72 55.1 AF 6 25–50 4.0 A1
2R-1, 30 357.40 3.16 68.3 AF 5 30–50 1.9 A1
2R-1, 73 357.83 6.90 39.3 AF 5 20–40 1.8 C2
2R-1, 79 357.89 6.81 49.2 TH 5 300–475 4.6 A2
2R-1, 100 358.10 3.18 52.2 AF 4 35–50 2.1 A1
2R-1, 137 358.47 11.06 39.3 AF 8 20–60 0.9 C2
2R-2, 22 358.76 7.68 36.4 AF 7 20–50 2.1 A1
2R-2, 110 359.64 3.00 40.2 AF 5 30–50 1.3 A1
2R-2, 115 359.69 9.75 29.0 AF 6 15–40 1.2 A1
2R-3, 3 360.07 8.05 39.6 AF 4 25–40 3.4 C1
2R-3, 95 360.99 7.02 50.1 TH 7 350–550 9.3 A2
2R-3, 123 361.27 12.57 45.6 AF 6 20–50 1.0 A1
3R-3, 130 361.34 2.95 41.9 AF 5 30–50 1.7 A1
3R-1, 24 361.34 8.09 48.0 TH 3 300–450 4.9 A1
3R-1, 30 361.40 4.41 58.7 AF 5 20–40 1.4 A1
3R-1, 31 361.41 6.90 42.4 AF 6 15–40 0.4 A1
3R-1, 112 362.22 3.88 51.2 AF 6 25–50 0.7 A1
3R-1, 130 362.40 8.70 49.2 AF 5 15–35 0.7 B2
3R-1, 135 362.45 4.80 45.7 AF 6 25–50 0.9 A1
3R-2, 10 362.70 3.79 61.9 AF 5 30–50 1.9 A1
3R-2, 12 362.72 11.49 –54.6 TH 5 250–450 0.5 A1
3R-2, 58 363.18 10.00 25.8 AF 6 20–50 0.5 A1
3R-2, 88 363.48 10.37 44.8 AF 5 20–40 0.4 A1
3R-2, 107 363.67 5.60 52.8 AF 5 30–50 0.5 A1
4R-1, 37 366.97 11.74 54.3 TH 4 250–450 0.1 A1
4R-1, 55 367.15 6.88 71.3 AF 4 35–50 0.8 C1
4R-1, 110 367.70 9.98 40.5 AF 5 25–45 1.3 A1
4R-1, 134 367.94 8.59 41.0 TH 4 350–500 10.0 A2
4R-2, 20 368.26 6.06 59.7 AF 4 40–60 2.0 C1
4R-2, 23 368.29 10.70 66.4 AF 4 20–35 1.1 A1
4R-2, 84 368.90 4.45 42.4 AF 5 30–50 0.6 A1
4R-2, 88 368.94 9.41 35.8 TH 5 250–500 1.8 A1
4R-3, 1 369.40 3.58 43.9 AF 5 35–60 1.5 A1
4R-3, 25 369.64 12.18 47.2 TH 4 300–500 2.2 A1
4R-3, 27 369.66 9.07 51.3 AF 6 25–60 2.8 A1
4R-3, 64 370.03 7.33 63.1 AF 5 30–50 2.2 B2
4R-3, 132 370.71 14.61 49.9 AF 5 20–40 1.7 A1
4R-4, 45 371.29 13.94 63.5 TH 4 200–400 1.1 B2
5R-1, 37 376.67 8.48 53.2 AF 6 25–60 1.4 A1
5R-1, 57 376.87 4.47 24.0 AF 4 40–60 0.5 A1
5R-1, 100 377.30 2.08 56.0 AF 5 35–60 2.7 A1
5R-2, 27 378.07 1.69 69.4 AF 5 30–50 0.5 A1
5R-2, 104 378.84 16.65 35.8 AF 6 30–50 3.5 A1
5R-2, 105 378.85 1.92 60.8 AF 5 35–60 2.0 A1
5R-2, 109 378.89 16.49 53.6 TH 7 275–475 1.9 B1
5R-3, 44 379.74 28.52 59.7 TH 4 375–475 12.6 A1
5R-3, 55 379.85 2.69 45.9 AF 5 35–60 1.6 A1
6R-1, 33 386.33 12.49 67.8 TH 5 150–350 2.7 B2
6R-1, 41 386.41 15.96 81.9 AF 4 25–40 1.5 C2
6R-1, 48 386.48 5.78 67.4 AF 3 45–60 1.6 B1
6R-1, 64 386.64 12.53 59.6 AF 4 35–60 2.4 B1
6R-1, 86 386.86 4.59 76.8 AF 4 30–45 1.5 B1
6R-1, 92 386.92 4.81 83.2 AF 6 30–60 1.7 B1
6R-2, 4 387.49 4.28 66.0 AF 5 35–60 3.3 A1
6R-2, 35 387.80 17.24 –56.7 AF 5 35–60 0.4 A1
6R-2, 44 387.89 4.74 78.2 AF 5 35–60 2.5 A1
6R-2, 67 388.12 10.22 66.8 TH 4 350–475 1.2 A1
7R-1, 29 395.89 14.67 62.2 AF 6 25–60 0.9 C1
7R-1, 30 395.90 60.81 63.8 AF 6 30–60 1.6 A1
7R-1, 52 396.12 9.26 –6.9 TH 4 150–275 1.7 A1
7R-1, 57 396.17 6.68 –45.6 AF 4 35–50 3.5 A1
7R-2, 4 397.14 10.90 42.6 AF 4 40–60 12.8 C2
8R-1, 19 405.39 6.90 –59.7 AF 5 35–60 1.8 B2
8R-1, 43 405.63 6.26 37.7 AF 6 30–60 0.3 A1
8R-1, 44 405.64 8.79 47.7 AF 6 30–60 1.0 A1
8R-1, 63 405.83 5.78 –2.8 AF 3 45–60 1.9 C2
9R-1, 30 410.50 10.76 57.3 TH 4 425–500 10.3 A1
9R-1, 32 410.52 4.69 36.1 AF 4 40–60 2.9 A1
9R-1, 53 410.73 8.03 57.6 AF 5 35–60 0.4 A1
9R-1, 63 410.83 13.78 75.5 TH 5 400–500 7.9 A1
9R-1, 63 410.83 4.79 62.4 AF 4 30–45 0.8 A1
10R-1, 26 415.06 6.18 49.8 AF 5 35–60 0.7 A1
10R-1, 79 415.59 9.11 61.8 TH 5 400–500 8.7 A1
10R-1, 95 415.75 6.05 73.6 TH 5 400–500 5.7 A1
10R-1, 131 416.11 13.04 64.5 TH 6 375–500 4.5 A1
10R-2, 57 416.82 14.02 64.8 AF 4 35–50 1.5 A1
10R-2, 67 415.92 4.73 45.5 AF 5 35–60 1.1 C1
10R-2, 96 417.21 6.62 66.7 AF 4 40–60 2.4 C1
11R-1, 67 425.07 5.14 76.7 AF 4 40–60 1.2 A1
11R-1, 68 425.08 13.96 84.5 TH 4 425–500 3.4 B2
11R-1, 94 425.34 34.41 35.0 TH 3 450–500 6.3 A1
11R-1, 107 425.47 5.36 49.3 AF 5 30–45 1.5 B1
12R-1, 27 429.17 25.58 32.7 TH 6 300–500 8.8 A1
12R-1, 91 429.81 28.52 69.7 AF 6 30–60 3.8 A1
12R-1, 93 429.83 30.58 64.1 AF 6 30–60 2.9 A1
13R-1, 14 430.04 6.06 57.1 AF 5 35–60 2.7 A1
13R-1, 22 430.12 28.60 63.1 TH 4 400–475 12.4 B2
13R-1, 68 430.58 32.17 70.1 AF 5 30–50 6.3 A1
13R-1, 94 430.84 2.80 70.3 AF 5 30–50 1.1 A1
13R-2, 5 431.38 17.70 63.8 TH 4 350–450 13.8 A1
13R-2, 14 431.47 4.18 84.2 AF 3 40–50 0.6 C2
13R-2, 17 431.50 1.33 47.5 AF 4 25–40 15.1 D
14R-1, 26 434.26 6.88 66.5 AF 4 30–45 0.4 B2
14R-1, 45 434.45 4.75 49.2 AF 4 35–50 8.7 C1
14R-1, 55 434.55 6.08 48.8 AF 5 30–50 7.2 A1
14R-1, 81 434.81 25.51 54.0 AF 5 30–50 4.8 A1
14R-1, 132 435.32 13.73 77.6 TH 4 250–375 1.4 D
14R-1, 133 435.33 7.13 66.9 AF 3 45–60 1.3 A1
14R-1, 142 435.42 3.61 84.3 AF 4 35–50 0.7 B2
15R-1, 45 444.05 6.61 54.2 AF 4 35–50 1.1 A1
15R-1, 94 444.54 11.58 61.6 TH 3 425–500 5.0 A1
15R-1, 108 444.68 15.33 55.1 AF 4 35–50 12.1 B2
15R-1, 113 444.73 16.83 62.5 AF 7 20–50 1.8 A1
15R-2, 9 445.19 27.40 63.2 AF 6 20–45 5.2 A1
15R-2, 20 445.30 23.98 62.4 AF 4 20–35 8.3 A1
15R-2, 91 446.01 27.89 55.1 TH 6 350–475 14.4 A1
15R-2, 93 446.03 30.91 43.0 AF 5 30–50 4.7 A1
15R-3, 10 446.70 24.62 30.5 AF 5 35–60 3.7 A1
15R-3, 22 446.82 5.76 48.7 AF 3 35–45 1.3 C2
15R-3, 41 447.01 5.26 51.0 AF 4 40–60 0.6 A1
15R-3, 81 447.41 39.73 66.4 AF 5 35–60 1.2 A1
15R-3, 144 448.04 6.58 51.2 AF 4 30–45 1.8 B2
15R-4, 5 448.15 3.67 48.1 AF 5 35–60 0.4 B1
15R-4, 21 448.31 23.39 46.3 AF 4 25–40 9.2 A1
15R-4, 29 448.39 3.30 –72.6 AF 4 35–50 3.0 A1
15R-4, 65 448.75 15.99 67.2 AF 5 20–45 3.9 A1
15R-4, 101 449.11 36.80 65.7 AF 4 40–60 1.4 A1
16R-1, 22 453.42 6.76 62.2 AF 3 35–45 1.3 B1
16R-1, 38 453.58 7.14 41.7 AF 4 40–60 2.2 B1
16R-1, 81 454.01 14.46 66.5 TH 4 425–500 6.0 A2
16R-1, 100 454.20 3.91 32.9 AF 3 45–60 3.4 A1
16R-1, 107 454.27 3.90 62.7 AF 5 20–40 2.0 B2
16R-1, 144 454.64 2.23 44.4 AF 4 30–45 7.5 C2
17R-1, 32 461.72 3.19 48.3 TH 5 400–500 8.9 A1
17R-1, 58 461.98 5.36 –6.1 AF 4 40–60 2.0 A1
17R-1, 73 462.13 7.47 75.6 AF 4 30–45 19.3 B2
17R-1, 76 462.16 7.26 34.5 TH 6 375–500 5.9 A1
18R-1, 34 471.34 20.80 23.7 TH 5 400–500 11.9 A1
18R-1, 53 471.53 5.43 7.5 AF 4 30–50 3.5 C2
18R-1, 65 471.65 12.83 –25.1 AF 4 425–500 2.0 A1
18R-1, 96 471.96 25.51
AF


C2
18R-2, 13 472.43 17.07 –36.5 AF 5 20–40 1.6 A1
18R-2, 24 472.54 10.28 33.9 AF 4 35–50 6.6 B2
18R-2, 32 472.62 30.02 67.7 AF 3 45–60 7.1 D
18R-2, 78 473.08 15.11
AF


D
18R-2, 108 473.38 21.42
AF


D
18R-3, 44 474.00 26.67
TH


D
18R-3, 112 474.68 26.04
AF


D
18R-4, 21 475.09 19.57 41.7 TH 3 475–525 3.2 A1
18R-4, 65 475.53 9.78 30.7 AF 4 30–45 7.9 C2
18R-4, 71 475.59 16.16
AF


C2
18R-4, 84 475.72 4.18 –4.4 TH 3 450–500 7.2 C2
18R-4, 84 475.72 5.83 –16.0 AF 3 40–60 10.5 A1
18R-4, 115 476.03 4.06
AF


C2
18R-5, 5 476.38 6.08 23.1 AF 5 35–60 5.4 B1
19R-1, 21 476.31 8.88 –11.6 AF 5 35–60 0.5 A1
19R-1, 32 476.42 4.99 2.8 AF 4 40–60 3.8 C2
19R-1, 35 476.45 2.78 6.9 TH 3 450–500 2.7 A1
19R-1, 47 476.57 4.80 45.6 AF 3 30–40 0.2 B2
19R-1, 51 476.61 2.67 57.5 AF 4 25–40 1.9 B2
19R-1, 105 477.15 9.12
AF


B2
19R-2, 28 477.85 6.75 25.0 TH 4 400–475 15.6 A1
19R-2, 58 478.15 4.49 –29.3 AF 3 35–45 0.5 C1
20R-1, 23 480.83 5.77 32.7 AF 3 30–40 1.6 C2
20R-1, 47 481.07 12.78 –25.2 TH 4 425–500 3.8 A1
20R-1, 71 481.31 4.42 36.5 AF 4 40–60 1.0 A1
20R-1, 72 481.32 8.34
AF


C2
20R-1, 117 481.77 5.15 43.4 AF 3 30–40 0.6 C1
21R-1, 60 490.80 12.31 32.6 AF 5 25–45 1.8 A1
21R-1, 104 491.24 29.82 45.3 TH 4 450–525 2.7 A1
21R-2, 14 491.70 6.50 64.5 TH 3 475–525 5.1 A1
21R-2, 30 491.86 5.36 –61.6 AF 3 45–60 2.1 B2
21R-2, 62 492.18 1.77
AF


B2
21R-2, 99 492.55 5.13
TH


D
21R-2, 136 492.92 3.15 49.1 AF 3 35–45 0.9 A1
21R-3, 46 493.45 5.51
AF


B2
21R-3, 55 493.54 3.34 56.1 AF 4 30–45 1.1 B1
21R-3, 118 494.17 3.12 11.5 AF 4 40–60 6.6 B2
21R-4, 3 494.52 8.00 –16.6 TH 3 450–500 7.2 A1
21R-4, 49 494.98 5.05 60.5 AF 4 40–60 1.3 A1
21R-4, 71 495.20 31.86 52.9 TH 5 425–525 4.1 A1
22R-1, 23 495.63 15.86 –32.6 AF 4 40–60 3.4 A1
22R-1, 53 495.93 3.55 49.9 AF 5 35–60 0.7 A1
22R-1, 96 496.36 11.16
AF


B2
22R-1, 107 496.47 5.65
AF


B2
22R-1, 131 496.71 11.74 57.6 TH 4 425–500 5.2 B1
22R-2, 5 496.88 4.60 58.4 AF 5 35–60 0.7 A1
22R-2, 26 497.09 10.10 64.1 TH 3 475–525 9.7 A1
22R-2, 48 497.31 11.16 12.7 AF 4 30–45 1.0 A1
22R-2, 60 497.43 7.95 50.8 AF 5 30–50 2.0 A1
23R-1, 29 500.19 7.11 46.9 AF 4 40–60 1.9 A1
23R-1, 50 500.40 2.70 –31.5 TH 5 425–525 14.1 A1
23R-1, 66 500.56 4.81 37.6 AF 3 45–60 1.1 B2
23R-1, 93 500.83 4.48
AF


B2
23R-1, 131 501.21 5.81 50.4 AF 4 40–60 2.5 B1
23R-2, 10 501.46 10.47
AF


C2
23R-2, 46 501.82 5.62 50.6 AF 3 45–60 4.3 B1
23R-2, 141 502.77 7.64
AF


C2
23R-3, 8 502.94 17.42 58.5 TH 4 425–500 2.9 A1
23R-3, 24 503.10 8.47 32.5 AF 4 30–45 1.1 B1
24R-1, 13 506.03 3.72 9.9 AF 4 35–50 0.6 B2
24R-1, 34 506.24 7.14 5.3 TH 4 425–500 25.7 A1
24R-1, 59 506.49 3.73 22.0 AF 3 35–45 1.0 C1
24R-1, 89 506.79 5.19 32.0 AF 4 35–50 2.4 C2
24R-1, 103 506.93 10.73 53.1 AF 4 35–50 1.1 A1
24R-1, 126 507.16 30.43 53.7 TH 6 400–525 10.2 A1
24R-2, 8 507.30 3.00 35.4 AF 3 35–45 2.6 A1
24R-2, 9 507.31 32.91 51.1 TH 4 400–500 17.6 B2
24R-2, 37 507.59 32.83 41.6 TH 3 475–525 2.3 A1
25R-1, 11 509.61 5.80 66.6 AF 4 35–50 0.7 B1
25R-1, 42 509.92 3.21 –51.9 AF 4 25–40 0.9 B2
25R-1, 54 510.04 8.14 61.0 TH 3 475–525 11.4 B1
25R-1, 75 510.25 4.46 55.8 AF 4 35–50 2.5 A1
25R-1, 110 510.60 4.46 52.8 AF 3 35–45 1.3 C2
25R-1, 132 510.82 15.32 74.2 TH 5 400–500 3.9 A1
25R-2, 6 510.97 9.70 40.3 TH 3 475–525 7.3 A1
25R-2, 55 511.46 3.90 43.6 AF 3 35–45 1.5 B2
25R-2, 76 511.67 6.08 50.9 AF 3 35–45 0.8 C2
25R-2, 97 511.88 11.35 –5.5 AF 3 35–45 0.9 B2
26R-1, 37 515.87 4.36 –77.7 TH 3 450–500 4.8 A1
26R-1, 37 515.87 3.13 46.8 AF 4 30–45 3.2 A1
27R-1, 66 519.66 4.49 67.2 AF 3 35–45 0.2 B2
27R-1, 68 519.68 10.26
AF


C2
27R-1, 84 519.84 15.91 54.1 TH 3 475–525 1.5 A1
27R-1, 136 520.36 6.75 –65.1 AF 4 35–50 0.9 B1
27R-2, 4 520.54 5.98 62.9 AF 3 35–45 1.6 C2
27R-2, 13 520.63 6.12 69.0 AF 3 30–40 0.5 A1
27R-2, 26 520.76 17.10 68.4 TH 4 425–500 12.5 A1
28R-1, 19 528.79 8.40
TH


C2
28R-1, 46 529.06 16.31 44.2 TH 3 475–525 5.9 A1
28R-1, 49 529.09 6.33 66.3 AF 3 30–40 0.7 C2
30R-1, 47 535.67 8.61 48.7 AF 4 40–60 2.3 B2
30R-1, 63 535.83 4.66 63.2 TH 3 500–550 19.1 B2
30R-1, 98 536.18 5.35 47.6 AF 4 35–50 0.7 A1
30R-1, 99 536.19 4.22 –61.0 TH 3 450–525 0.9 A1
30R-1, 106 536.26 3.13 –46.2 TH 3 500–550 5.1 A1
30R-1, 116 536.36 7.59 –54.7 AF 3 45–60 2.3 A1
31R-1, 49 544.89 3.18 52.9 AF 3 45–60 7.2 C2
31R-1, 51 544.91 3.37 –43.7 TH 3 500–550 9.2 A1
32R-1, 19 550.19 2.64 –8.3 AF 4 30–45 1.4 B2
32R-1, 36 550.36 11.36 21.8 AF 4 40–60 3.9 A1
32R-1, 81 550.81 4.99 39.9 TH 3 475–550 2.4 A1
32R-1, 119 551.19 3.66 55.4 AF 3 20–30 3.2 C2
32R-1, 129 551.29 18.58 22.0 AF 3 35–45 0.6 C1
32R-2, 18 551.62 5.28
AF


C2
32R-2, 54 551.98 5.84 55.8 AF 3 40–50 0.2 B1
32R-2, 83 552.27 15.50 –30.2 AF 3 40–50 1.9 B2
32R-2, 105 552.49 8.71 60.0 TH 3 500–550 43.1 B2
32R-3, 4 552.98 10.71 –13.0 TH 3 450–525 14.8 C2
32R-3, 19 553.13 5.09 –2.5 AF 4 35–50 2.1 B2
32R-3, 33 553.27 7.23 –2.9 TH 3 500–550 10.9 A1
33R-1, 67 554.67 2.40 64.0 TH 3 500–550 7.4 A1
33R-1, 83 554.83 6.41 58.9 AF 3 30–40 0.6 B1
33R-1, 110 555.10 15.56
AF


C2
33R-1, 132 555.32 3.53 43.4 AF 4 30–45 1.7 B1
33R-2, 7 555.57 5.64 34.9 AF 3 40–50 1.2 A1
33R-2, 19 555.69 6.16 –36.1 TH 4 475–550 9.7 A1
33R-2, 40 555.90 2.17 78.5 AF 3 30–40 1.4 C2
33R-2, 105 556.55 3.11 37.7 AF 4 40–60 1.6 B1
33R-2, 124 556.74 5.44 23.5 TH 3 500–550 1.5 A1
34R-1, 3 560.63 6.33 36.6 TH 5 425–550 14.2 A1
34R-1, 28 560.88 7.96 –38.8 AF 4 35–50 1.1 C1
34R-1, 49 561.09 3.95 32.7 TH 3 500–550 12.6 A1
34R-1, 80 561.40 4.57 11.1 AF 3 35–45 0.7 B2
34R-2, 26 562.36 4.16 –46.5 TH 4 450–525 4.5 A1
34R-2, 35 562.45 4.44 51.2 AF 3 40–50 0.9 B1
34R-2, 87 562.97 4.64 –72.5 AF 3 35–45 1.5 A1
34R-2, 98 563.08 7.85 –46.3 AF 4 30–45 2.3 A1
34R-2, 119 563.29 9.10 11.5 TH 4 475–550 5.3 B2
35R-1, 16 563.76 3.05 –0.6 TH 4 475–550 4.3 B1
35R-1, 27 563.87 7.61 –14.2 TH 4 450–525 14.2 A1
35R-1, 54 564.14 3.17 –6.3 AF 3 40–50 12.7 C2
35R-1, 77 564.37 7.17 45.2 AF 3 40–50 1.3 A1
35R-2, 20 565.27 6.03 51.2 AF 3 35–45 1.2 C1
35R-2, 41 565.48 5.07 38.2 AF 4 35–50 1.3 A1
35R-2, 104 566.11 27.67 64.2 TH 4 450–550 17.9 A1
35R-2, 118 566.25 10.46 38.8 TH 3 475–525 18.4 A1
35R-2, 128 566.35 5.30 34.9 AF 4 40–60 2.2 A1
35R-3, 12 566.61 21.16 32.1 TH 4 450–525 17.5 A1
36R-1, 30 573.50 16.51 66.5 AF 4 40–60 2.3 C2
36R-1, 41 573.61 7.00 34.6 AF 3 35–45 2.7 C1
36R-1, 90 574.10 3.26 –52.6 TH 5 450–550 6.3 A1
36R-1, 124 574.44 5.74 56.4 AF 3 35–45 0.7 B1
36R-1, 144 574.64 6.09 –19.9 TH 2 525–550 7.5 C2
36R-2, 8 574.78 4.25 –50.9 TH 3 500–550 1.4 A1
36R-2, 85 575.55 5.43 52.8 AF 3 35–45 2.2 B1
36R-2, 101 575.71 8.19 53.9 AF 3 25–35 1.7 C2
36R-2, 122 575.92 6.63 –55.3 TH 4 475–550 3.3 A1
36R-3, 36 576.53 3.76 –61.9 TH 3 500–550 0.9 A1
36R-3, 85 577.02 3.10 –25.1 TH 4 450–550 9.6 A1

Notes: NRM = natural remanent magnetization intensity. PCA = inclination of characteristic remanent magnetization determined by principal component analysis. Demag. type = method of sample demagnetization. AF = alternating field, TH = thermal. N = number of demagnetization steps used for principal component fit. Demag. steps = demagnetization steps used for principal component analysis. MAD = maximum angle of deviation (error parameter; see Kirschvink, 1980). Qual. = subjective classification of demagnetization behavior. A1 = univectorial decay toward orthogonal vector (OV) plot origin with low scatter, A2 = univectorial decay toward OV origin with higher scatter, B1 = univectorial decay, close to but not directly to OV origin, B2 = univectorial decay, but not close to OV origin, C1 = sample directions veer from OV origin at high demagnetization steps but trend close to origin, C2 = sample directions veer from OV origin at high demagnetization steps and trends away from OV origin, D = directions inconsistent.

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