Geology Reference
In-Depth Information
In summary, co-ordinate curvature contributes the extra double-force density
terms for the dip-slip system,
r
r
0
sin 2α
+
θ
cot
θ
0
φ
r
0
cos 2α,
r
0
δsin 2α
+
(9.79)
and the extra double-force density terms for the strike-slip system,
θ
r
0
cosα
+
φ
cot
θ
0
−
r
0
δsinα.
(9.80)
Using the orthogonality relations (1.205) and (1.209), as outlined, the radial
spheroidal, transverse spheroidal and torsional radial coe
cients can be extrac-
ted from the dipole force densities for the dip-slip system (9.63). In the limit as θ
0
approaches zero, we find
2
n
+
1
u
n
(
r
)
4π
r
2
δ
(
r
=
−
r
0
) sin 2α,
i
(
2
n
+
1
)
u
−
n
(
r
)
=−
n
(
n
+
1)δ(
r
−
r
0
)cos2α,
8π
r
3
i
(2
n
1)
8π
r
3
δ(
r
+
u
n
(
r
)
=−
−
r
0
)cos2α,
i
(2
n
+
1)
v
−
n
(
r
)
8π
r
2
δ
(
r
=
−
r
0
)cos2α,
i
(2
n
+
1)
1
1)
δ
(
r
v
n
(
r
)
=
−
r
0
)cos2α,
8π
r
2
n
(
n
+
2
n
1
8π
r
3
+
v
−
n
(
r
)
=−
(
n
−
1)(
n
+
2)δ(
r
−
r
0
) sin 2α,
(9.81)
2
n
+
1
n
(
r
)
v
=−
1)
δ(
r
−
r
0
) sin 2α,
8π
r
3
n
(
n
+
2
n
+
1
t
−
n
(
r
)
8π
r
2
δ
(
r
=−
−
r
0
)cos2α,
+
2
n
1
t
n
(
r
)
1)
δ
(
r
=
−
r
0
)cos2α,
8π
r
2
n
(
n
+
i
(2
n
+
1)
t
−
n
(
r
)
=−
(
n
−
1)(
n
+
2)δ(
r
−
r
0
) sin 2α,
8π
r
3
i
(2
n
+
1)
t
n
(
r
)
=
1)
δ(
r
−
r
0
) sin 2α.
8π
r
3
n
(
n
+
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