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⊥
,
⊥
,
Fig.
8.24
The
transverse
and
longitudinal
magnetotelluric
curves
and
obtained at different distance
y
from the epicentre of the regional asthenosphere uplift (
v
=
250 km);
˙
n
,
n
and ¨
˙
n
,
n
- locally normal curves outside and over the asthenosphere
¨
uplift.
For
the
model from Fig. 8.22 with parameters
1
=
10 Ohm
·
m
,
h
1
=
1km
,
2
=
10000 Ohm
·
m
,
h
2
=
h
2
=
99 km
,
49 km
,
h
=
50 km
,
3
=
10 Ohm
·
m
h
2
=
h
5 km is hardly
distinguishable because of screening and low-frequency flattening. Here the curves
⊥
and
=
h
1
+
50 km is the depth to the uplift. The uplift with
v
=
n
-curve characterizing the uplift sur-
roundings. These distortions are marked by small values of the galvanic and induc-
are close to the locally normal ˙
