Q1: A forward and reverse refractive seismic survey was conducted, and the arrival times of seismic waves on the surface were recorded. The results were recorded as shown in the table. The required: -1. Calculate the seismic velocity in the layers that appears on the distance-time curve.2. Calculate the angle of inclination of the refracting surface of the seismic waves.3. Calculate the depth to the fracture surface under the surface of the earth

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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Q1: A forward and reverse refractive
seismic survey was conducted, and
the arrival times of seismic waves
on the surface were recorded. The
results were recorded as shown in
the table.The required: -1. Calculate
the seismic velocity in the layers
that appears on the distance-time
curve.2. Calculate the angle
inclination of the refracting surface
of the seismic waves.3. Calculate
the depth to the fracture surface
under the surface of the earth
Geo.
Distance
Time fw.
Time Re.
(m)
(msec)
(msec)
No.
1
5
4.2
4.1
10
8.8
8.6
15
13.0
13.1
4
20
17.2
17.1
25
21.8
21.6
30
24.0
25.8
7
35
25.5
30.5
8
40
27.0
34.5
9
45
28.5
36.8
10
50
30.0
37.5
11
55
31.5
38.3
12
60
33.1
39.0
Transcribed Image Text:Q1: A forward and reverse refractive seismic survey was conducted, and the arrival times of seismic waves on the surface were recorded. The results were recorded as shown in the table.The required: -1. Calculate the seismic velocity in the layers that appears on the distance-time curve.2. Calculate the angle inclination of the refracting surface of the seismic waves.3. Calculate the depth to the fracture surface under the surface of the earth Geo. Distance Time fw. Time Re. (m) (msec) (msec) No. 1 5 4.2 4.1 10 8.8 8.6 15 13.0 13.1 4 20 17.2 17.1 25 21.8 21.6 30 24.0 25.8 7 35 25.5 30.5 8 40 27.0 34.5 9 45 28.5 36.8 10 50 30.0 37.5 11 55 31.5 38.3 12 60 33.1 39.0
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