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In closing, consider Fig. 8.34, which presents the two-dimensional models IA-I
(isotropic asthenolith) and AA-I (anisotropic asthenolith) with the lithosphere resis-
tance of 1.5
m
2
. The model IA-I contains the deep-seated extended
isotropic asthenolith of resistivity of 18.2 Ohm
10
9
·
Ohm
·
m, width of 500 km and amplitude of
100 km. In the model AA-I we have the same asthenolith composed of alternating
vertical layers of resistivities of 10 and 100 Ohm
·
·
m (the strike of vertical layers
coincides with the asthenolith strike). Here
Fig. 8.32
Two-dimensional models of the asthenosphere uplift. The model IAU-I contains an
isotropic asthenosphere uplift, the model AAU-I contains an anisotropic asthenosphere uplift with
alternating vertical dykes
