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Table T20. Estimated azimuth of seismometers in walkaway VSP experiment, Hole C0009A. (See table notes.)
Depth
DRF (m)
|
x
|
y
|
Difference in estimated
azimuth (x – y) (°)
|
First motion
amplitude
|
Estimated
azimuth (°)
|
First motion
amplitude
|
Estimated
azimuth (°)
|
|
2989
|
0.041
|
75.0
|
0.04
|
341.7
|
93.3
|
|
3004
|
0.036
|
96.4
|
0.038
|
5.0
|
91.4
|
|
3019
|
0.037
|
139.9
|
0.032
|
49.2
|
90.7
|
|
3034
|
0.035
|
184.1
|
0.032
|
89.0
|
95.1
|
|
3050
|
0.032
|
216.6
|
0.035
|
135.5
|
81.1
|
|
3065
|
0.031
|
291.2
|
0.03
|
195.9
|
95.3
|
|
3080
|
0.034
|
324.1
|
0.031
|
230.0
|
94.1
|
|
3095
|
0.039
|
343.2
|
0.033
|
253.2
|
90.0
|
|
3111
|
0.029
|
26.3
|
0.031
|
308.6
|
77.6
|
|
3126
|
0.008
|
56.2
|
0.012
|
333.1
|
83.1
|
|
3141
|
0.031
|
125.9
|
0.031
|
23.9
|
102.0
|
|
3156
|
0.027
|
185.2
|
0.022
|
95.1
|
90.1
|
|
3172
|
0.024
|
204.2
|
0.02
|
125.5
|
78.7
|
|
3187
|
0.023
|
168.2
|
0.023
|
85.8
|
82.4
|
|
3202
|
0.028
|
149.7
|
0.022
|
57.0
|
92.6
|
|
3217
|
0.031
|
151.6
|
0.026
|
76.9
|
74.8
|
Notes: Azimuth estimated using amplitude of first motion of shots in circle shooting. Differences of estimated azimuth between x- and y-components are indicated on the right.
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