Scale 1:1,000,000.- Covers the area east to west, from Northwest Pacific Basin to Shikoku Basin and north to south, from Ogasawara Trough to West Mariana Ridge.Appendices: 1. Geomagnetic anomaly map 2. Free-air gravity anomaly map 3. Bouguer gravity anomaly map.Includes cross sections, location map, and chart of Traverse lines and sites.