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Fig. 11.38
Real Wiese-Parkinson tippers Re
W
along profiles I-I, II-II, III-III, IV-IV, V-V crossing
the Kirghiz Tien Shan,
T
=1600 s (Trapeznikov et al., 1997) 1- MTS, 2- long-period deep MTS,
3- Re
W
, 4- sedimentary basins: Chu (1), Fergana (2), Ili (3), Naryn (4), Atbashi (5), Susamyr
(6), Issyk Kul (7)
moving north, we meet a vast area with large induction arrows which are directed
toward the northwest, north and northeast. We can believe that such anomaly is
caused by a deep conductive layer whose resistivity increases from the south to the
north.
Figure 11.39 shows a map of the south-west of the East European platform with
real Wiese-Parkinson tippers Re
W
plotted for
T
300 s (Jankovski et al., 2004).
We see a striking correlation between the iduction arrows and configuration of the
crystalline basement depth isolines. The vectors Re
W
are directed toward the base-
ment uplift, being transverse to the depth isolines. Here the induction arrows reflect
the topography of the crystalline basement.
One more example of the real Wiese-Parkinson tippers Re
W
taken from the
audiomagnetotellurics surveys in Jakutia is shown in Fig. 11.40. We see here the
induction arrows plotted for
T
=
001 s. They run out of an isometric conductive
zone that coincides with the known diamond pipe filled with loose volcanic
formations.
=
0
.
11.4.2 Constructing Impedance and Tipper Polar Diagrams
The typical polar diagrams of the impedance tensor, phase tensor, and tipper were
shown in Figs. 1.7, 1.8, 3.12, 4.2. Now we consider the polar diagrams of the
