LIST OF FIGURES 



Page 



1. Generalized tectonic and crustal age chart of the Western 



Pacific 2 



2. Track location and geophysical data plotted on bathymetric 

 contour chart of the Caroline Basin area 3 



3. Line drawings of seismic reflection profiles across the 



Ayu Trough 13 



4. Seismic reflection profiles in the West Caroline Basin 14 



5. Enlarged segments of profiles 1-3, Fig. 4 16 



6. East-west seismic reflection profiles at the northern and 



southern sides of the Caroline Basin 19 



7. Line drawings of seismic reflection profiles in the East 



Caroline Basin 21 



8. Observed magnetic profiles in the West Caroline Basin 



compared to model profiles 27 



9. Observed magnetic profiles in the East Caroline Basin 



compared to model profiles 30 



10. Observed magnetic components (F; I), and aircraft heading 



elements (TH: MH) used in the computation of D 33 



11. Anomalous magnetic component data computed from the 



information in Fig. 10 35 



12. Summary areal display of the results of the model studies 



of Figs. 8 and 9 41 



13. Sediment isopachs in the Caroline Basin 47 



14. Bathymetric and gravity profiles across the West Caroline 



Trough and the Eauripik Rise 51 



15. Tectonic interpretation chart of the Caroline Basin and 



margins on bathymetric base 57 



16. Evolution of the Caroline Region: 52-40 m.y. B.P 73 



17. Evolution of the Caroline Region: 40-27 m.y. B.P 74 



