Investor Presentaiton
5. NA Inversion
DEPTH (km)
0.00.0
T
1.0
MODEL: Demo
S VELOCITY (km/s)
2.0
3.0
10.0
20.0
30.0
40.0
50.0
די
ויייי
60.0
1
NO. OF MODELS
OF THE BEST 1000
100
10
70.0
1.5
2.0
2.5
3.0
1000
Vp/Vs RATIO
Misfit = 0.238
0.34
0.30
0.25
4.0
5.0
0.21
Amplitude
0.17
0.13
0.08
0.04
0.00
-0.04
Observed and predicted receiver functions
-5.0
-2.5
Misfit 0.238
Demo
0.0
2.5
5.0
7.5
10.0
Neighbourhood Algorithm (NA-sampler)
NA is used to produce seismic velocity profiles by inversion of the RFs; these
profiles also help to constrain the depth and transitional nature of the Moho.
Figure on the left shows S velocity profiles obtained from inversion of RFs from
station KSM. Red line (left) shows the Vp/Vs ratio result from inversion and red
model (right) is the best fit model. The coloured section shows the best 1000
models and the red arrow shows possible Moho depth.
The result obtained from the inversion estimated the Moho to be around
-27 km, which is consistent with the H-k stacking method.
Figure on the top right shows the fit between observed (black) and predicted (blue)
receiver function following the inversion.
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