Quick Gravity Reduction Sheet
Bouguer Density 2.67 g/cc Enter values in Bold
Station Count0
Time, min Counter Reading Count1 Val0, mGal Val1, mGal
CA1 0.4111111 3140.378 3200 3300 3272.88 3375.14
CA2 0.4993056 3141.178 3200 3300 3272.88 3375.14
CA3 0.7430556 3141.180 3200 3300 3272.88 3375.14
CA4 0.6631944 3141.175 3200 3300 3272.88 3375.14
CA5 0.5270833 3136.340 3200 3300 3272.88 3375.14
CA6 0.725 3137.093 3200 3300 3272.88 3375.14
CA7 0.4583333 3139.543 3200 3300 3272.88 3375.14
CA8 0.4756944 3139.765 3200 3300 3272.88 3375.14
CA9 0.4881944 3140.743 3200 3300 3272.88 3375.14
CA10 0.5090278 3141.088 3200 3300 3272.88 3375.14
CA11 0.5972222 3141.145 3200 3300 3272.88 3375.14
CA12 0.5493056 3139.938 3200 3300 3272.88 3375.14
CA13 0.6111111 3139.857 3200 3300 3272.88 3375.14
CA14 0.7180556 3140.615 3200 3300 3272.88 3375.14
CA15 0.6319444 3139.795 3200 3300 3272.88 3375.14
CA16 0.6472222 3140.038 3200 3300 3272.88 3375.14
CA17 0.6604167 3140.745 3200 3300 3272.88 3375.14
CA18 0.67569444 3141.7025 3200 3300 3272.88 3375.14
CA19 0.68611111 3141.83 3200 3300 3272.88 3375.14
CA20 0.69652778 3141.7975 3200 3300 3272.88 3375.14
A1 0.40625 3299.9 3200 3300 3272.88 3375.14
A2 0.48611111 329.994 3200 3300 3272.88 3375.14
A3 0.43055556 3298.905 3200 3300 3272.88 3375.14
A4 0.45277778 3291.87 3200 3300 3272.88 3375.14
A5 0.46527778 3300.5275 3200 3300 3272.88 3375.14
A6 0.47569444 3300.2975 3200 3300 3272.88 3375.14
A7 0.48888889 3299.885 3200 3300 3272.88 3375.14
A8 0.58333333 329.996 3200 3300 3272.88 3375.14
A9 0.50416667 3299.475 3200 3300 3272.88 3375.14
A10 0.51458333 3299.46 3200 3300 3272.88 3375.14
A11 0.525 3299.27 3200 3300 3272.88 3375.14
A12 0.53472222 3298.3575 3200 3300 3272.88 3375.14
A13 0.54791667 3295.0725 3200 3300 3272.88 3375.14
A14 0.56736111 3299.9875 3200 3300 3272.88 3375.14
A15 0.57777778 3298.7025 3200 3300 3272.88 3375.14
A16 0.58958333 3299.34 3200 3300 3272.88 3375.14
A17 0.68472222 329.9445 3200 3300 3272.88 3375.14
A18 0.63472222 3300.3275 3200 3300 3272.88 3375.14
A19 0.65625 3300.4075 3200 3300 3272.88 3375.14
A20 0.66805556 3291.9025 3200 3300 3272.88 3375.14
A21 0.7 3299.8925 3200 3300 3272.88 3375.14
A22 0.61319444 3299.5225 3200 3300 3272.88 3375.14
A23 0.70833333 3300.1075 3200 3300 3272.88 3375.14
AA1 0.40069444 3299.905 3200 3300 3272.88 3375.14
AA2 0.51180556 3299.65167 3200 3300 3272.88 3375.14
AA3 0.41805556 3299.755 3200 3300 3272.88 3375.14
AA4 0.44375 3300.27 3200 3300 3272.88 3375.14
AA5 0.46111111 3300.695 3200 3300 3272.88 3375.14
AA6 0.47777778 3299.525 3200 3300 3272.88 3375.14
AA7 0.49236111 3299.24167 3200 3300 3272.88 3375.14
1994 G-509 calibration sheet
0.004
0.004
0.004
0.004
0
0
0.05063
0
0
0.0346
0.0346
0.00133
0.02264
0.02264
0.02263
0.00133
0
0
0
0
0.05463
0.05463
0.05326
0
0
0.00133
0.00133
0.00663
0
0
0
0.01068
0
0
0
0
0
0
0.05326
0
0
0.05597
0.0186
0.0186
0.0186
0.0186
0
0
0.00267
0
0
Values in Bold-Italic are results
Drift,
Reading, mGal mGal dz, m B BC
Free Air, mGal ouguer, mGal Terrain, mGal
3211.910 0.000 -20.70 -6.382 2.317 0.004
3212.728 -0.133 -20.70 -6.382 2.317 0.004
3212.731 -0.500 -20.70 -6.382 2.317 0.004
3212.726 -0.380 -20.70 -6.382 2.317 0.004
3207.781 -0.175 18.20 5.611 -2.037 0.000
3208.551 -0.473 18.20 5.611 -2.037 0.000
3211.056 -0.071 -1.80 -0.555 0.201 0.051
3211.284 -0.097 -32.60 -10.051 3.649 0.000
3212.284 -0.116 -17.80 -5.488 1.992 0.000
3212.636 -0.148 -15.10 -4.655 1.690 0.035
3212.695 -0.281 -15.10 -4.655 1.690 0.035
3211.460 -0.208 -31.20 -9.619 3.492 0.001
3211.377 -0.301 -3.25 -1.002 0.364 0.023
3212.153 -0.463 -3.25 -1.002 0.364 0.023
3211.314 -0.333 -3.50 -1.079 0.392 0.023
3211.562 -0.356 -5.60 -1.726 0.627 0.001
3212.286 -0.376 -10.40 -3.206 1.164 0.000
3213.265 -0.399 -15.40 -4.748 1.724 0.000
3213.395 -0.415 -16.50 -5.087 1.847 0.000
3213.362 -0.430 -18.50 -5.704 2.071 0.000
3375.038 0.007 1221.20 376.496 -136.685 0.055
338.012 -0.113 1221.20 376.496 -136.685 0.055
3374.020 -0.029 0.000 0.000 0.000
3366.826 -0.063 1266.20 390.369 -141.721 0.053
3375.679 -0.082 1224.60 377.544 -137.065 0.000
3375.444 -0.097 1221.80 376.681 -136.752 0.000
3375.022 -0.117 1220.90 376.403 -136.651 0.001
338.014 -0.260 1220.90 376.403 -136.651 0.001
3374.603 -0.140 1220.30 376.218 -136.584 0.007
3374.588 -0.156 1218.90 375.787 -136.427 0.000
3374.394 -0.172 1220.00 376.126 -136.550 0.000
3373.460 -0.186 1225.70 377.883 -137.188 0.000
3370.101 -0.206 1240.00 382.292 -138.789 0.011
3375.127 -0.236 1219.70 376.034 -136.517 0.000
3373.813 -0.251 1220.80 376.373 -136.640 0.000
3374.465 -0.269 1220.80 376.373 -136.640 0.000
337.961 -0.412 1221.10 376.465 -136.673 0.000
3375.475 -0.337 1221.50 376.588 -136.718 0.000
3375.557 -0.370 1225.30 377.760 -137.143 0.000
3366.859 -0.387 1264.10 389.722 -141.486 0.053
3375.030 -0.435 0.000 0.000 0.000
3374.652 -0.305 1221.30 376.527 -136.696 0.000
3375.250 -0.448 1221.20 376.496 -136.685 0.056
3375.043 0.016 1220.80 376.373 -136.640 0.019
3374.784 -0.152 1220.80 376.373 -136.640 0.019
3374.889 -0.010 1221.60 376.619 -136.729 0.000
3375.416 -0.049 1221.70 376.650 -136.740 0.000
3375.851 -0.075 1222.20 376.804 -136.796 0.003
3374.654 -0.100 1221.30 376.527 -136.696 0.000
3374.365 -0.122 1220.30 376.218 -136.584 0
404.500
404.000
403.500
403.000
402.500
402.000
401.500
401.000
400.500
400.000
265800 266000
SBA, mGal X, m Y, m Z, m Bouguer Slab depth, m
-4.061 CA1 -584.2 75.5 -20.7 194 0.000
-3.376 CA2 -584.2 75.5 -20.7 161
-3.741 CA3 -584.2 75.5 -20.7 178
-1.000
-3.625 CA4 -584.2 75.5 -20.7 173
-0.730 CA5 961.9 -142.6 18.2 35
-0.258 CA6 961.9 -142.6 18.2 12
-2.000
-1.228 CA7 197.6 -8.5 -1.8 59
-7.125 CA8 -1076.9 263.3 -32.6 340
-3.238 CA9 -354.3 64.5 -17.8 154 -3.000
-2.352 CA10 -222.1 62 -15.1 112
-2.426 CA11 -222.1 62 -15.1 116
-6.784 CA12 -1006.6 220.2 -31.2 324 -4.000
-1.450 CA13 163.6 -6.7 -3.25 69
-0.835 CA14 163.6 -6.7 -3.25 40
-1.593 CA15 51.7 17.7 -3.5 76 -5.000
-1.802 CA16 -43.8 21.9 -5.6 86
-2.042 CA17 -108.4 45.9 -10.4 97
-6.000
-2.068 CA18 -273.1 62.8 -15.4 99
-2.169 CA19 -314.2 59.8 -16.5 104
-2.611 CA20 -398.1 63.1 -18.5 125 -7.000
403.001 A1 266421.2 4450880.5 1221.2
-2634.145 A2 266421.2 4450880.5 1221.2
162.081 A3 AP Official BM (See recorded info) -8.000
403.555 A4 266778.5 4451256.5 1266.2 -1500
404.167 A5 266649.7 4451128 1224.6
403.366 A6 266524.7 4450993 1221.8
402.749 A7 266411.1 4450856 1220.9
-2634.402 A8 266411.1 4450856 1220.9
402.195 A9 266305.6 4450723.5 1220.3
-1500
401.882 A10 266201.1 4450585.5 1218.9
0
401.888 A11 266070.8 4450457 1220
402.059 A12 265938.3 4450323 1225.7
401.499 A13 266010 4449928.5 1240 50
402.499 A14 266262.9 4450318.5 1219.7
401.385 A15 266374 4450521 1220.8
402.019 A16 266374 4450521 1220.8 100
-2634.569 A17 266525.4 4450736 1221.1
403.098 A18 266675.5 4450921.5 1221.5
403.894 A19 266836.5 4451093 1225.3 150
402.851 A20 266958.1 4451211 1264.1
162.685 A21 Offset?
200
402.268 A22 266614.8 4450805.5 1221.3
402.759 A23 266421.2 4450880.5 1221.2
402.900 AA1 266332.6 4450767 1220.8 250
250
402.474 AA2 266332.6 4450767 1220.8
402.859 AA3 266221.7 4450886 1221.6
403.366 AA4 266379.8 4451038.5 1221.7 300
403.873 AA5 266261.8 4451188 1222.2
402.475 AA6 266614.8 4450805.5 1221.3
401.970 AA7 266772.9 4450683 1220.3 350
dip= 9.92624551 400
Astor Pass SBA
266000 266200 266400 266600 266800 267000 267200
Calif. Wash SBA
-1000 -500 0 500 1000 1500
1500 -1000 -500
Depth
Bouguer-Slab500
0 1000 1500