Geoscience Reference
In-Depth Information
135°E
140°E
145°E
150°E
155°E
45°N
45°N
Hokkaido
40°N
40°N
NFZ
JSM
Honshu
35°N
KFZ
35°N
30°N
30°N
25°N
25°N
135°E
140°E
145°E
150°E
155°E
6500 6000 5500 5000 4500 4000 3500 3000 2500 2000 1500 1000
5000
Fig. 1 The bathymetric map around the Japan islands. Bathymetric data are ETOPO1 (Amante
and Eakins, 2009 ). Contour interval is 500 m. A red rectangle represents the area of Figs. 2 - 4 .
KFZ Kashima Fracture Zone, NFZ Nosappu Fracture Zone, JSM Joban Seamounts
trenches with special attention to patterns of fault structures. A priority of mention is
made for the southern portion of the Japan Trench, south of 38°N, which was not
elaborated in detail by the previous works of Kobayashi et al. ( 1998 ) and Sasaki
( 2003 ). Magnetic anomaly lineations are reidentified based on the geomagnetic data
newly collected after the previous works (Nakanishi et al. 1989, 1999 ). Finally, com-
bining the studies of bathymetry and magnetic anomaly lineations, the controlling
factors to determine the strike of the bending-related structures are investigated.
Search WWH ::




Custom Search