Skip to main content
Article thumbnail
Location of Repository

Benthic Foraminiferal Oxygen Isotope Offsets Over The Last Glacial-Interglacial Cycle

By Babette Hoogakker, Henry Elderfield, Kevin Oliver and Simon Crowhurst


The oxygen isotope (?18O) offset between contemporaneous benthic foraminiferal species is often assumed constant with time and geographic location. We present an inventory of benthic foraminiferal species ?18O offsets from the major ocean basins covering the last glacial-interglacial cycle, showing that of the twenty down-core records investigated, twelve show significant temporal changes in ?18O offsets that do not resemble stochastic variability. Some of the temporal changes may be related to kinetic fractionation effects causing deglacial/interglacial enrichment or glacial depletion in mainly infaunal species, but additional research is needed to confirm this. In addition to stratigraphic implications the finding of temporally varying offsets between co-existing benthic foraminiferal species could have implications for sea-level, deep water temperature, and regional deep water ?18O estimates

Year: 2010
OAI identifier:
Provided by: e-Prints Soton

Suggested articles


  1. (2000). 200,000 yr diatom records from Atlantic upwelling sites reveal maximum productivity during LGM and shift in phytoplankton community structure at 185,000 yr. doi
  2. (2001). A multiproxy reconstruction of the evolution of deep and surface waters in the subarctic Nordic seas over the last 30,000 years. doi
  3. (2004). Absolute calibration of the Greenland time scale: implications for Antarctic time scales and for Δ14C. doi
  4. (2001). al for Paleoceanography 17 Figure 1. Location details of benthic foraminiferal isotope records used in this study,
  5. (1994). All other records can be found in online supporting material Figure S3. Data are from Sarnthein
  6. (2003). An experimental study of oxygen isotope fractionation between inorganically precipitated aragonite and water at low temperatures. doi
  7. (1999). An explanation of the effect of seawater carbonate concentration on foraminiferal oxygen isotopes. doi
  8. and improves the linear correlations (A', B'). Species Mean δ 18O offset ± S.D. (number of cores, sample pairs) in ‰. Individual records (sample pairs ≥ 20) δ 18O offset ± S.D. per core
  9. (1974). Attainment of isotopic equilibrium between ocean water and benthonic foraminifera genus Uvigerina: isotopic changes in the ocean during the last glacial.
  10. (2008). Benthic foraminiferal faunal and isotopic changes as recorded in Holocene sediments in the northwest Indian Ocean. doi
  11. (1986). Benthic foraminiferal δ 13 C and accumulation rates of organic carbon: Uvigerina peregrina group and Cibicidoides wuellerstorfi. doi
  12. (2004). C years with 500 year reservoir correction) are from
  13. (2004). Carbon sotopes of live benthic foraminifera from the South Atlantic: Sensitivity to bottom water carbonate saturation state and organic matter rain rates, doi
  14. (2007). Carbonate ion effect on Mg/Ca, Sr/Ca and stable isotopes on the benthic foraminifera Oridorsalis umbonatus off Namibia. doi
  15. (2001). Changes in Arctic Ocean paleoproductivity and hydrography during the last 145 kyr: the benthic foraminiferal record. doi
  16. (1994). Changes in east Atlantic deepwater circulation over the last 30,000 years: Eight time slice reconstructions. doi
  17. (1988). Changes in the distribution of δ13C of deep water ΣCO2 between the last glaciation and the Holocene, doi
  18. (1985). Changes in the oceanic 13C/12C ratio during the last 140,000 years: high latitude surface water records. doi
  19. (2006). Comparison of benthic foraminifera inside and outside a sulphur-oxidizing bacterial mat from the present oxygen-minimum zone off Pakistan doi
  20. (1968). Composition of magnesium calcites algae and pelecypods by electron microprobe analysis. doi
  21. (1998). Correlation of marine 14C-ages from the Nordic Seas with the GISP2 isotope record: Implications for radiocarbon calibration beyond 25ka BP.
  22. (2003). Data Report: calcareous nannofossil data from the Eocene to Oligocene, Leg 177, Hole 1090B. doi
  23. (1970). Differential isotopic fractionation in benthic foraminifera and paleotemperatures assessed. doi
  24. (2001). East Asian Monsoon variability on orbital- and millennial-to-subdecadal time scales. PhD Thesis, Mathematisch-Naturwissenschaftliche Fakultät der Christian-Albrechts-Universität zu Kiel, 164 pp. Hoogakker et al for
  25. (1999). East-Asian monsoon climate during the Late Pleistocene: high-resolution sediment records from the South China Sea. doi
  26. (1997). Effect of seawater carbonate concentration on foraminiferal carbon and oxygen isotopes.
  27. (2004). Environmental and biological effects on the stable isotope composition of recent deep-sea benthic foraminifera from the western Mediterranean Sea. doi
  28. (1997). Equilibrium and non-equilibrium oxygen isotope effects in synthetic calcites. doi
  29. (2005). Glacial water mass geometry and the distribution of δ 13C of ΣCO2 doi
  30. (1996). Hydrographic changes of the Southern Ocean (southeast Indian sector) over the last 230 kyr. doi
  31. in the western Atlantic Ocean. doi
  32. (1981). Labeyrie and Duplessy,
  33. (2006). Mediterranean outflow strengthening during northern hemisphere coolings: A salt source for the glacial Atlantic? doi
  34. (2006). Multispecies stable isotopes of benthic foraminifers reveal past changes of organic matter decomposition and deepwater oxygenation in the Arabian Sea. doi
  35. (1988). Norwegian Sea Deep Water variations over the last climatic cycle: Paleo-oceanographical implications. doi
  36. (2000). Phase relationships between millennialscale events 64,000-24,000 years ago. doi
  37. (1996). Quaternary paleoceanography: unpublished stable isotope records.
  38. (1998). Re-evaluation of the oxygen isotopic composition of planktonic foraminifera: Experimental results and revised temperature equations. doi
  39. (1999). Reassessing foraminiferal stable isotope geochemistry: impact of the ocean carbonate system (experimental results). From doi
  40. (2005). Role of marine biology in glacial-interglacial CO2 cycles. doi
  41. (2002). Sea-level and deep water temperature changes derived from benthic foraminifera isotopic records. doi
  42. (2002). Sea-surface temperature variability and deep water reorganisation in the subtropical North Atlantic during Isotope Stage 2-4. doi
  43. (1981). Seasonal reconstruction of the earth's surface at the last glacial maximum,
  44. (2008). Seawater carbonate-ion-δ13C systematics and application to glacial-interglacial North Atlantic ocean circulation. doi
  45. (1986). Spätquartäre Entwicklung von Küstenauftrieb und Tiefenwasserzirkulation im Nordost-Atlantik. Rekonstruktion anhand stabiler Isotope kalkschaliger Foraminiferen. Diploma Thesis,
  46. (1978). Stable isotopes in deep sea carbonates: Box core ERDC 92 west equatorial Pacific.
  47. (2006). Stable oxygen and carbon isotopes of live benthic foraminifera from the Bay of Biscay: Microhabitat impact and seasonal variability. doi
  48. (1995). Surface and deep hydrology of the Northern Atlantic Ocean during the last 150,000 years. doi
  49. (1993). The delta-C-13 in benthic foraminiferal tests of Fontbotia wuellerstorfi (Schwager) relative to delta-C-13 of dissolved inorganic carbon in Southern Ocean Deep Water -implications for glacial ocean circulation models. doi
  50. (1990). The influence of microhabitats on the carbon isotopic composition of deep-sea benthic foraminifera, doi
  51. (2001). The Northern North Atlantic: A Changing Environment, doi
  52. (1982). Tracers in the Sea, Lamont–Doherty Geological Observations,
  53. (1985). Two-Step Deglaciation: 14C-Dated High Resolution δ 18 O Records from the Tropical Atlantic Ocean. doi

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.