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 BEFORE COMPLETING FORM 



1. REPORT NUMBER 



2. GOVT ACCESSION NO. 



3. RECIPIENT'S CATALOG NUMBER 



4. r\T\.E (and Subline) 



Geophysics and Tectonic Development 

 of the Caroline Basin 



5. TYPE OF REPORT & PERIOD COVERED 



Technical Report 



6. PERFORMING ORG. REPORT NUMBER 



TR-283 



7. AUTHORrs; 



Dewey R. Bracey 



8. CONTRACT OR GRANT NUMBERfs; 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



Code 8212 



U. S. Naval Oceanographic Office 



Bay St. Louis, MS 39522 



10. PROGRAM ELEMENT, PROJECT. TASK 

 AREA a WORK UNIT NUMBERS 



11. CONTROLLING OFFICE NAME AND ADDRESS 



12. REPORT DATE 



May 1983 



13. NUMBER OF PAGES 



82 



l«. MONITORING AGENCY NAME ft ADDRESSfi/ d(//eren( Irom ControlUng OtUce) 



15. SECURITY CLASS, (ot this report) 



UNCLASSIFIED 



15a. DECLASSIFI CATION/ DOWN GRADING 

 SCHEDULE 



16. DISTRIBUTION ST ATEMENT fo/ this Report; 



Approved for public release; distribution unlimited 



17. DISTRIBUTION STATEMENT (ol the abatraet entered In Block 20, It dIUerent Irom Report) 



IB. SUPPLEMENTARY NOTES 



19. KEY WORDS (Continue on reverse aide It neceeaary and Identity by block number) 



Caroline Basin Geophysics Marine Geology 

 Southwest Pacific Geomagnetics Seismic Reflection 



20. ABSTRACT (Continue on reverse side It necessary and Identity by block number) 



Contradictory hypothesis on the origin of the Caroline Basin suggested that 

 an attempt be made to arrive at a reasonable synthesis of basin origin. 

 This thesis attempts such a synthesis. 



The principal conclusions reached are that the Caroline Basin formed by a 

 complex sea floor spreading mechanism in Tertiary time behind a southward 

 advancing island arc. Mantle plume development in the eastern basin during 



DD ,:^ 



EDITION OF 1 NOV 65 IS OBSOLETE 



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