Table T9. Summary of discrete sample data, Holes 1270A, 1270B, 1270C, and 1270D.
Core, section, interval (cm)
Depth (mbsf)
Piece
Lithology
PCA
polarity
N
Decay type
MAD (°)
Remanence direction (°) Demagnetization (mT)
J
(A/m)
PCA
(%)
Declination
Inclination
Low
High
209-1270A-




1R-1, 108 1.08 19 2
I
 5
+
 6.5 276.8 45.6 40 80 0.1386 3.1
209-1270B-




1R-1, 98 0.98 16 10
R
 9
+
 2.3 174.9 –1.2 25 80 0.3955 6.0
1R-1, 115 1.15 17 10
R
 7
+
 1.7 201.4 –6.7 35 100 0.4809 2.9
4M-1, 104 18.54 14 10
R
 8
+
 2.8 155.3 –8.4 20 60 0.4628 4.8
4M-2, 57 19.57 9 10
R
 8
+
 4.7 163.8 –23.4 20 60 0.7258 4.8
4M-2, 125 20.25 19 16
R
 10
+
 7.8 51.7 2.9 10 60 0.3968 13.7
4M-3, 6 20.49 1 16
R
 8
+
 4.1 170.9 –17.8 25 80 0.2650 4.0
7R-1, 105 32.55 17 16
R
 7
F
 3.7 328.4 –27.9 20 60 0.1250 16.7
7R-2, 122 34.12 13 10
R
 9
+
 6.7 310.7 –7 20 70 0.3701 2.0
8R-1, 127 37.77 20B 10
R
 6
+
 3.3 221.6 –17 15 35 1.060 7.0
10M-1, 27 46.07 6 16
R
 9
+
 4.0 84.8 –31 25 100 0.4021 0.8
209-1270C-




1R-1, 50 0.50 9 2
I
 8
F
 1.5 332.2 9.5 8 40 1.472 80.4
1R-1, 63 0.63 10 2
I
 8
F
 1.0 357.3 8.4 10 50 1.924 73.1
1R-1, 71 0.71 11 2
I
 10
F
 1.7 8.2 –8.9 10 80 2.271 76.5
2R-1, 67 13.17 12 2
I
 10
F
 1.9 153.3 –12.5 6 50 1.036 85.6
209-1270D-




3R-1, 59 19.49 8B 2
I
 9
F
 3.5 16.8 –2.7 8 40 0.2050 39.4
3R-2, 49 20.65 3 2
I
 7
F
 1.4 344.2 3.6 20 60 0.3811 47.0
3R-2, 53 20.69 3 2
I
 8
F
 1.1 346.9 0.9 15 60 1.209 66.8
4R-1, 91 24.31 12A 1.5
I
 9
F
 1.3 332.3 4.9 15 80 3.015 74.6
4R-1, 101 24.41 12B 1.5
I
 9
F
 1.7 328.0 4.7 15 80 2.880 67.8
6R-1, 33 33.23 4B 2
I
 6
F
 5.0 92.5 –41.3 15 40 0.6965 109.5

Notes: Lithology: 1.5 = dunite/harzburgite, 2 = harzburgite, 10 = gabbro, 16 = microgabbro. PCA (principal component analysis) polarity = polarity for reorientation studies: R = rotate to 180°, N = rotate to 360°, I = indeterminate. N = number of points. Decay type: F = free of origin, + = includes origin as point. MAD = maximum angular deviation. PCA (%) = percentage of natural remanent magnetization intensity. This table is also available in ASCII.