scholarly journals Bomb-Produced Carbon-14 in the Surface Water of the Pacific Ocean

Radiocarbon ◽  
1980 ◽  
Vol 22 (3) ◽  
pp. 599-606 ◽  
Author(s):  
Timothy W Linick

The distribution of 14C concentrations in the dissolved inorganic carbon in the surface waters of the Pacific Ocean is shown to have a primarily latitudinal pattern with Δ14C maxima at mid-latitudes in both hemispheres and a minimum at the equator. Oceanographic causes of this phenomenon are discussed.

2013 ◽  
Vol 27 (1) ◽  
pp. 65-76 ◽  
Author(s):  
Shinya Kouketsu ◽  
Akihiko Murata ◽  
Toshimasa Doi

Radiocarbon ◽  
1978 ◽  
Vol 20 (3) ◽  
pp. 333-359 ◽  
Author(s):  
T W Linick

The La Jolla Radiocarbon Laboratory has measured carbon-14 concentrations in seawater samples collected from 1957 through 1972. The dissolved inorganic carbon in seawater was extracted on board research vessels and was returned to the laboratory for processing and measurement. Both surface and sub-surface samples were collected, primarily from the Pacific Ocean, but also from the Indian Ocean. The purpose of the seawater measurements was to determine the distribution of bomb-produced radiocarbon in the surface water of the Pacific and Indian Oceans, the sub-surface penetration of bomb 14C, the change in 14C/12C ratios with depth, and thus the rate of uptake of bomb 14C by the oceans. This project was the basis of the author's doctoral dissertation (Linick, 1975).


1965 ◽  
Vol 70 (24) ◽  
pp. 6087-6097 ◽  
Author(s):  
Charles D. Keeling ◽  
Norris W. Rakestraw ◽  
Lee S. Waterman

1998 ◽  
Vol 49 (3) ◽  
pp. 203 ◽  
Author(s):  
Simon C. Apte ◽  
Graeme E. Batley ◽  
Ronald Szymczak ◽  
Paul S. Rendell ◽  
Randall Lee ◽  
...  

Concentrations of ten trace elements at five localities in New South Wales coastal waters were measured by ultratrace sampling and analysis. Mean concentrations of cadmium (2.4 ng L-1), copper (31 ng L-1), nickel (180 ng L-1), lead (9 ng L-1) and zinc (<22 ng L-1) are among the lowest reported in the Southern Hemisphere and are consistent with recent oceanographic data for the surface waters of the Pacific Ocean. Waters from the southernmost sampling locality (Eden) contained higher phosphate, silicate, cadmium and nickel, but lower chromium concentrations than waters from the other four localities, reflecting the inputs of water from the Tasman Sea in the south compared with the dominance of waters from the Coral Sea along the rest of the coast. Cadmium concentrations were positively correlated with both phosphate and silicate. Chromium and lead concentrations were also significantly correlated. It is likely that a major source of lead is atmospheric deposition. The trace metal concentrations were comparable to those in the surface waters of the Pacific Ocean, indicating that fluvial inputs or processes occurring in the coastal margin were of limited importance in determining trace metal concentrations.


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