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1
M5
M7
M6
2
3
M8
M12
M13
M14
M9
M11
M10
4
SE
NW
400 nT
M11
200
M10N
M15
0
M7
M5
5
M6
0
100
200 km
M8
M9
M10
6
SMT
M10N
M11
M12
M18
M15
M16
M17
7
8
9
SMT
M7
M9
M11
M15
M16
M17
M18
M19
M12
M6
M8
M10
M8 M9
M10
Model
M5M6M7 M8 M9
M10
M10N
M11
M12
M13M14 M15
16
M17
18
M19
130
135
140
145
147 Ma
Fig. 20
Identification of selected magnetic anomalies profiles projected approximately normal to
the magnetic anomaly lineations. Locations of the profiles are shown in Fig.
3
. Magnetic anomaly
reversal sequence is from Gradstein et al. (
2004
). Normally magnetized blocks are solid.
SMT
represents a seamount.
Dashed lines
distinguish possible pseudofaults caused by propagating
spreading ridges. The skewness parameter for calculation of the model profile is −230° that is the
same as that used in Nakanishi et al. (
1989
)
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