. Carbon and the biosphere; proceedings of the 24th Brookhaven symposium in biology, Upton, , May 16-18, 1972. Carbon cycle (Biogeochemistry). 6180 FORAM G. RUBER -127 — O < 11 — V-12 - 122 VAN DONK 290-. 220 CARBON-TO-PHOSPHORUS RATIO, TEMPERATURE AND ICE VOLUME DEEP SEA Fig. 6 The 6' 3 C and <5 ' 8 O ratio as a function of depth and age in a sediment core from the Caribbean Sea. The difference of 2 per mil between surface and deep water is recorded by the forams that grow in these two reservoirs. Shells that grow in surface water record the C in the
. Carbon and the biosphere; proceedings of the 24th Brookhaven symposium in biology, Upton, , May 16-18, 1972. Carbon cycle (Biogeochemistry). 6180 FORAM G. RUBER -127 — O < 11 — V-12 - 122 VAN DONK 290-. 220 CARBON-TO-PHOSPHORUS RATIO, TEMPERATURE AND ICE VOLUME DEEP SEA Fig. 6 The 6' 3 C and <5 ' 8 O ratio as a function of depth and age in a sediment core from the Caribbean Sea. The difference of 2 per mil between surface and deep water is recorded by the forams that grow in these two reservoirs. Shells that grow in surface water record the C in the surface ocean; shells that grow in deep water record l 3C at the bottom of the ocean. The difference between their I3C contents is a reflection of the difference in the carbon isotope ratios in the dissolved carbon in the ocean. And that depends on the ratio of the phosphorus to carbon dissolved in the sea (Fig. 6). One of the key factors in understanding paleochemistry is to ascertain the ratios of nutrient elements, one to another. First we will consider the calcium. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Brookhaven National Laboratory; Woodwell, G. M; Pecan, Erene V. [Washington] Technical Information Center, U. S. Atomic Energy Commission; [available from National Technical Information Service, Springfield, Va. ]
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