Table T13. Magnetic survey of the superconducting rock magnetometer (SRM). (See table notes.)
|
Distance (cm) |
x (long axis) (mG) |
y (port side) (mG) |
z (up) (mG) |
Total (mG) |
Total (nT) |
Total (μT) |
Comment |
|---|---|---|---|---|---|---|---|
| 0.0 | –17.00 | 33.00 | 327.00 | 329.10 | 32,910.0 | 32.91 | At the home switch |
| 10.5 | –11 | 38 | 355 | 357.20 | 35,719.7 | 35.72 |
|
| 21.0 | 2 | 22 | 375 | 375.65 | 37,565.0 | 37.57 |
|
| 31.5 | 4 | 23 | 405 | 405.67 | 40,567.2 | 40.57 |
|
| 42.0 | –3 | 19 | 437 | 437.42 | 43,742.3 | 43.74 |
|
| 52.5 | 0 | 10 | 493 | 493.10 | 49,310.1 | 49.31 |
|
| 63.0 | –4 | 9 | 557 | 557.09 | 55,708.7 | 55.71 |
|
| 73.5 | –28 | –5 | 653 | 653.62 | 65,361.9 | 65.36 |
|
| 84.0 | –87 | –20 | 790 | 795.03 | 79,502.8 | 79.50 |
|
| 94.5 | –213 | –77 | 979 | 1,004.86 | 100,485.8 | 100.49 |
|
| 105.0 | –744 | –163 | 1,253 | 1,466.33 | 146,632.7 | 146.63 |
|
| 115.5 | –1,357 | 20 | 1,116 | 1,757.07 | 175,707.3 | 175.71 |
|
| 126.0 | –1,054 | 143 | 624 | 1,233.18 | 123,318.3 | 123.32 |
|
| 136.5 | –580 | 159 | 550 | 814.97 | 81,497.3 | 81.50 |
|
| 147.0 | –108 | 35 | 569 | 580.22 | 58,021.5 | 58.02 |
|
| 157.0 | 3.8 | 1 | 51.5 | 51.65 | 5,165.0 | 5.16 | In the magnetometer |
| 167.0 | –3.2 | –2 | 2.2 | 4.37 | 436.8 | 0.44 |
|
| 177.0 | –4 | –2.4 | 1.2 | 4.82 | 481.7 | 0.48 |
|
| 187.0 | –5.2 | –2.3 | –1.9 | 5.99 | 599.5 | 0.60 |
|
| 197.0 | –3.7 | –1.4 | –1.2 | 4.13 | 413.4 | 0.41 |
|
| 207.0 | –2.5 | –0.9 | –1 | 2.84 | 283.9 | 0.28 |
|
| 217.0 | –1.7 | –0.5 | –0.9 | 1.99 | 198.7 | 0.20 |
|
| 227.0 | –1 | –0.3 | –0.7 | 1.26 | 125.7 | 0.13 |
|
| 237.0 | –0.54 | –0.1 | –0.36 | 0.66 | 65.7 | 0.07 |
|
| 247.0 | –0.23 | –0.05 | –0.08 | 0.25 | 24.9 | 0.02 |
|
| 257.0 | –0.018 | 0.03 | –0.063 | 0.07 | 7.2 | 0.01 | At sensor |
| 267.0 | 0.092 | 0.017 | –0.153 | 0.18 | 17.9 | 0.02 |
|
| 277.0 | 0.091 | –0.001 | –0.397 | 0.41 | 40.7 | 0.04 |
|
| 287.0 | 0.02 | 0.005 | –0.795 | 0.80 | 79.5 | 0.08 |
|
| 296.0 | –0.067 | 0.001 | –1.213 | 1.21 | 121.5 | 0.12 |
|
| 305.0 | –0.093 | –0.054 | –1.78 | 1.78 | 178.3 | 0.18 |
|
| 314.0 | –0.07 | –0.15 | –2.43 | 2.44 | 243.6 | 0.24 |
|
| 323.0 | 0.06 | –0.19 | –3.15 | 3.16 | 315.6 | 0.32 |
|
| 332.0 | 0.32 | –0.23 | –3.52 | 3.54 | 354.2 | 0.35 |
|
| 341.0 | 1.9 | –0.3 | 4.8 | 5.17 | 517.1 | 0.52 |
|
| 350.0 | 13.4 | –1.1 | 47.3 | 49.17 | 4,917.4 | 4.92 |
|
| 360.0 | –19.3 | –5 | 138.4 | 139.83 | 13,982.9 | 13.98 | Shield break |
| 369.0 | –2.9 | –0.7 | 29.5 | 29.65 | 2,965.0 | 2.97 |
|
| 378.0 | –0.5 | –0.2 | 5.6 | 5.63 | 562.6 | 0.56 |
|
| 387.0 | –0.1 | –0.1 | 1.9 | 1.91 | 190.5 | 0.19 |
|
| 396.0 | 0.08 | –0.06 | 1.53 | 1.53 | 153.3 | 0.15 |
|
| 405.0 | 0.28 | –0.07 | 2.63 | 2.65 | 264.6 | 0.26 |
|
| 414.0 | 0.2 | –0.2 | 2.5 | 2.52 | 251.6 | 0.25 |
|
| 423.0 | 1.1 | –0.3 | 7.6 | 7.69 | 768.5 | 0.77 |
|
| 432.0 | 3 | –1.3 | 32.5 | 32.66 | 3,266.4 | 3.27 | Shield break |
| 442.0 | 0.9 | 3.8 | 14.6 | 15.11 | 1,511.3 | 1.51 |
|
| 451.0 | 0.7 | 0.5 | 6.4 | 6.46 | 645.8 | 0.65 |
|
| 460.0 | –0.1 | 0.3 | 4 | 4.01 | 401.2 | 0.40 |
|
| 469.0 | –0.01 | 0.3 | 3.8 | 3.81 | 381.2 | 0.38 |
|
| 478.0 | –0.4 | 0.1 | 3.6 | 3.62 | 362.4 | 0.36 |
|
| 487.0 | –0.1 | 0.1 | 3.6 | 3.60 | 360.3 | 0.36 |
|
| 496.0 | 0 | –0.2 | 3.8 | 3.81 | 380.5 | 0.38 |
|
| 505.0 | –0.1 | –0.1 | 3 | 3.00 | 300.3 | 0.30 | ~1 m from end |
Notes: Measured in transit after magnetometer was reconfigured. Date = 24 February 2009, location = Pacific Ocean (~300 km northeast of the Marshall Islands), latitude = 8.55, longitude = 175.167, heading = N61°E. Coordinate system used is same as SRM (Table T10).
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