Initial reports of the Deep Sea Drilling Project. Volume XC, covering leg 90 of the cruises of the drilling vessel Glomar Challenger, Noumea, New Caledonia, to Wellington, New Zealand, December 1982-January 1983 : a project planned by and carried out with the advice of the Joint Oceanographic Institutions for Deep Earth Sampling (JOIDES) / editor, Jan H. Blakeslee ; prepared for the National Science Foundation, National Ocean Sediment Coring Program under contract C-482 by the University of California, Scripps Institution of Oceanography