37 33 31 



EQ 10°N 2 0°N 30°N 40°N 50°N 60°N 



LATITUDE 



7 0°N 



Figure 2. — Radiocarbon in tlie Northwestern Atlantic, 1972- 

 73 (in thousandths of total carbon). 



Table 2.— Laboratories conducting trace element and 

 radioactive constituent analyses for GEOSECS 



Battelle Laboratories-Northwest, Richland, Wash. 



Centre National de la Recherche Scientifique de Faibles 



Radioactive, Gif-sur-Yvette, France 

 University of Hawaii, Honolulu, Hawaii 

 Lamont-Doherty Geological Observatory, Palisades, N.Y. 

 Louisiana State University, Baton Rouge, La. 

 McMaster University, Hamilton, Ontario, Canada 

 Physical Research Laboratory, Ahmedabad, India 

 Scripps Institution of Oceanography, La Jolla, Calif. 

 University of Southern California, Los Angeles, Calif. 

 University of Washington, Seattle, Wash. 

 Woods Hole Oceanographic Institution, Woods Hole, Mass. 

 Yale University, New Haven, Conn. 



Ku, T. L., and M. C. Lin. 1976. -^Ra distribution in the Ant- 

 arctic Ocean. Earth and Planet. Sci. Lett. 32 (GEOSECS 

 Collected Papers: 1973-1976) :236-248. 



Longinelli, A., M. Bartclloni, and G. Cortecci. 1976. The iso- 

 topic cycle of oceanic phosphate, L Earth and Planet. Sci. 

 Lett. 32 (GEOSECS Collected Papers: 1973-1976): 

 389-392. 



Lupton, J. E. 1976. The 'He distribution in deep water over the 

 Mid-Atlantic Ridge. Earth and Planet. Sci. Lett. 32 

 (GEOSECS Collected Papers: 1973-1976) :371-374. 



Millero, F. J., A. Gonzalez, P. G. Brewer, and A. Bradshaw. 

 1976. The density of North Atlantic and North Pacific 

 deep waters. Earth and Planet. Sci. Lett. 32 (GEOSECS 

 Collected Papers: 1973-1976) :468-472. 



Nozaki, Y., J. Thompson, and K. K. Turekian. 1976. The dis- 

 tribution of -'"Pb and -'"Po in the surface waters of the 

 Pacific Ocean. Earth and Planet. Sci. Lett. 32 (GEO 

 SECS Collected Papers: 1973-1976) :304-312. 



Nozaki, Y., and S. Tsunogai. 1976. -'Ra, -'"Pb, and ""Po 

 disequilibria in the Western North Pacific. Earth and 

 Planet. Sci. Lett. 32 (GEOSECS Collected Papers: 1973- 

 1976):313-321. 



Park, P. K., L. I. Gordon, and S. Alvarez-Borrego. 1974. The 

 carbon dioxide system of the Bering Sea. In; Oceanog- 

 raphy of the Bering Sea (D. W. Hood and E. J. Kelley, 

 eds.) Chap. 5, Inst. Mar. Sci., Univ. of Alaska, p. 107- 

 147. 



Ribbat, B., W. Roether, and K. O. Munnich. 1976. Turnover 

 of Eastern Caribbean deep water from '^C measurements. 

 Earth and Planet. Sci. Lett. 32 (GEOSECS Collected 

 Papers: 1973-1976) :331-341. 



Sarmiento, J. L., D. E. Hammond, and W. S. Broecker. 1976. 

 The calculation of the statistical counting error for -^Rn 

 scintillation counting. Earth and Planet. Sci. Lett. 32 

 (GEOSECS Collected Papers: 1973-1976) : 35 1-356. 



Sarmiento, J. L., H. W. Feely, W. S. Moore, A. E. Bain- 

 bridge, and W. S. Broecker. 1976. The relationship be- 

 tween vertical eddy diffusion and buoyancy gradient in 

 the deep sea. Earth and Planet. Sci. Lett. 32 (GEO 

 SECS Collected Papers: 1973-1976) :357-370. 



Sclater, F. R., E. Boyle, and J. M. Edmond. 1976. On the 

 marine geochemistry of nickel. Earth and Planet. Sci. 

 Lett. 31:119-128. 



Somayajulu, B. L. K., and H. Craig. 1976. Particulate and sol- 

 uble -"'Pb activities in the deep sea. Earth and Planet. 

 Sci. Lett. 32 (GEOSECS Collected Papers: 1973-1976): 

 268-276. 



Spencer, D. W., and A. Bainbridge. 1971. GEOSECS: A pro- 

 gram for the International Decade of Ocean Exploration. 

 Mar. Tech. Soc. 5:23-26. 



Stuiver, M. 1976. The '^C distribution in west Atlantic abyssal 

 waters. Earth and Planet. Sci. Lett. 32 (GEOSECS Col- 

 lected Papers; 1973-1976) : 322-330. 



Takahashi, T., M. O. Weaver, and L. A. Prince. 1976. The 

 effect of oxygen in the carrier gas for infrared gas analysis 

 of CO.,. J. Geophys. Res. 81:3736-3738. 



Takahashi, T., P. Kaiteris, and W. S. Broecker. 1976. A 

 method for shipboard measurement of CO^ partial pres- 

 sure in seawater. Earth and Planet. Sci. Lett. 32 (GEO 

 SECS Collected Papers: 1973-1976) :451-457. 



Takahashi, T., P. Kaiteris, W. S. Broecker, and A. E. Bain- 

 bridge. 1976. An evaluation of the apparent dissociation 

 constants of carbonic acid in seawater. Earth and Planet. 

 Sci. Lett. 32 (GEOSECS Collected Papers: 1973-1976): 

 458-467. 



Thompson, J., and K. K. Turekian. 1976. ^"'Po and ='"Pb dis- 

 tributions in ocean water profiles from the eastern South 

 Pacific. Earth and Planet. Sci. Lett. 32 (GEOSECS Col- 

 lected Papers: 1973-1976) :297-303. 



Tomlinson, R. D., and L. I. Gordon. 1973. A sample changer 



