Globigerinoides sacculifer

Nagler T. F., Eisenhauer A., Muller A., Hemleben C., and Kramers J. (20(X)) The S Ca-temperature calibration on fossil and cultured Globigerinoides sacculifer. new tool for reconstruction of past sea surface temperatures. Geochem. Geophys. Geosys. 1, (Paper number 2000GC000091). 

Rosenthal Y., Lohmann G. P., Lohmann K. C., and SherreU R. M. (2000) Incorporation and preservation of Mg in Globigerinoides sacculifer implications for reconstructing the temperature and of seawater. Paleoceanography... 

Spero H. J. and Lea D. W. (1993) Intraspecific stable isotope variability in the planktonic foraminifera Globigerinoides sacculifer. results from laboratory experiments. Mar. Micropaleontol. 22, 221-234. 

Globigerinoides sacculifer. implications for reconstructing the temperature and of seawater. Paleoceanography... 

Sanyal A., Bijma J., Spero H., and Lea D. W. (2001) Empirical relationship between pH and the boron isotopic composition of Globigerinoides sacculifer. implications for the boron isotope paleo-pH proxy. Paleoceanography 16, 515-519. 

Fig. 6. Relationship between Mg/Ca and calcification temperature determined for two species of planktonic foraminifera Globigerina bulloides and Globigerinoides sacculifer) recovered from core-tops, culture experiments and sediment traps. Data are from Elderfield Ganssen (2000), Anand et al. (2003), Lea et al. (1999) and Nurnberg et al. (1996).

Some organism-specific calibrations are shown in Figure 4. They include results from controlled culture experiments with the two planktonic foraminiferal species Globigerinoides sacculifer and Orbulina universa (Sanyal et al. 1996, 2001) and the coral species Porites cylindrica and two species of Acropora (Honisch et al. 2004 Reynaud et al. 2004). 

Fig. 4. Empirical relationships between 8 and culture seawater pH measured in three species of corals (Pontes and Acropora), two species of planktonic foraminifera (Globigerinoides sacculifer and Orbulina universa), and inorganically precipitated calcite. Palaeoceanographic reconstractions use the empirical curves for reconstracting past seawater pH. The upper black sohd, the dotted, and the dashed black line represent the 8"B of B(OH)4 using B3-b4) — 1.019, 1.027, and 1.030 (Kakihana Kotaka 1977 Liu Tossell 2005 Zeebe 2005a). The dot-dashed black line represents the experimental (b3-b4) = 1.0285 of Byrne etal. (2006). Note that 8"B b(OH) and the 8 B in carbonates are two different quantities and that one cannot be deduced from the other (see text).

J0RGENSEN, B. B., Erez, J., Revsbech, N. P. Cohen, Y. 1985. Symbiotic photosynthesis in a planktonic foraminiferan, Globigerinoides sacculifer (Brady), studied with microelectrodes. Limnology Oceanography, 30, 1253-1267. 

Be, a. W. H. 1980. Gametogenic calcification in a spinose planktonic foraminifer, Globigerinoides sacculifer (Brady). Journal of Foraminiferal Research, 10, 117-128. 

Hastings, D. W., Russell, A. D. Emerson, S. R. 1998. Foraminiferal magnesium in Globigerinoides sacculifer as a paleotemperature proxy. Paleoceanography, 13, 161-169. 

Fig. 4. Element to calcium ratios in Globigerinoides sacculifer and G. ruber determined by laser ablation ICPMS indicating the spatial heterogeneity in Mg concentrations in G. sacculifer but not in G. ruber (modified after Eggins et al. 2003). The Mg concentrations are higher in the inner part of G. sacculifer but constant in G. ruber which lacks Mg-poor gametogenic calcite. In contrast, Sr concentrations are relatively stable throughout the test and very similar for both species. Note that the 1 pm layer with very high Mg values, which we interpret as contamination on the outside of the test, has been excluded from this plot to highlight the internal variability. The different duration of the analysis is determined by the thickness of the foraminiferal test.

Anderson, O. R. Faber, W. W. 1984. An estimation of calcium carbonate deposition rate in a planktonic foraminifer Globigerinoides sacculifer using Ca as a tracer a recommended procedure for improved accuracy. Journal of Foraminiferal Research, 14, 303-308. 

Caron, D. A., Bh, A. W. H. Anderson, O. R. 1981. Effects of variations in light intensity on Ufe processes of the planktonic foraminifer Globigerinoides sacculifer in laboratory culture. Journal of the Marine Biological Association of the United Kingdom, 62, 435-451. 

---