Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-23T13:15:53.913Z Has data issue: false hasContentIssue false
  • English
  • Français

GISP2 Oxygen Isotope Ratios

Published online by Cambridge University Press:  20 January 2017

Minze Stuiver  and
Pieter M. Grootes
Minze Stuiver
Affiliation:
Quaternary Isotope Laboratory, Box 351360, University of Washington, Seattle, Washington, 98195-1360
Pieter M. Grootes
Affiliation:
Quaternary Isotope Laboratory, Box 351360, University of Washington, Seattle, Washington, 98195-1360
Get access Rights & Permissions [Opens in a new window]

Abstract

The GISP2 oxygen isotope record, with its high-resolution detail, yields crucial information on past climate change. The glacial δ18O oscillations of the GISP2 core, with their very fast onsets, are templates of a prototype oscillation of variable duration with an amplitude of 3.9‰. The halfway mark of the cold–warm transition is reached in 2 years; the top is reached in 50 years. The δ18O–time gradient of the leading front is about 7.8‰ per 100 yr. After reaching the top, δ18O slowly declines by −0.14‰ per 100 yr. The duration of δ18O decline varies from a couple of centuries for fast oscillations to about 4000 yr for slower ones. The subsequent δ18O downturn during the warm–cold transition has a δ18O–time gradient of −3.2‰ per 100 yr and lasts about 80 yr.

Type
Research Article
Information
Quaternary Research , Volume 53 , Issue 3 , May 2000 , pp. 277 - 284
Copyright
University of Washington

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Alley, R.B, Shuman, C.A, Meese, D.A, Gow, A.J, Taylor, K.C, Cuffey, K.M, Fitzpatrick, J.J, Grootes, P.M, Zielinski, G.A, Ram, M, Spinelli, G, Elder, B, (1997). Visual-stratigraphic dating of the GISP2 ice core: Basis, reproducibility, and application. Journal of Geophysical Research 102, 26,367–26,381.Google Scholar
Cuffey, K.M, Alley, R.B, Grootes, P.M, Bolzan, J.M, (1994). Calibration of the δ18O isotopic paleothermometer for Central Greenland, using borehole temperatures. Journal of Glaciology 40, 341–359.CrossRefGoogle Scholar
Dahl-Jensen, D, Mosegaard, K, Gundestrup, N, Clow, G.D, Johnson, S.J, Hansen, A.W, Balling, N, (1998). Past temperatures directly from the Greenland ice sheet. Science 282, 268–271.Google Scholar
Grootes, P. M, Steig, E. J, Stuiver, M, Waddington, E. D, Morse, D., (no date). New 130,000-year long Taylor Dome Antarctic 18O record indicates synchroneity of global glacial climatic fluctuations, submitted.Google Scholar
Grootes, P.M, Steig, E.J, Stuiver, M, Waddington, E.D, Morse, D.L, (1994). A new ice core record from Taylor Dome, Antarctica. EOS Transactions 75, 225.Google Scholar
Grootes, P.M, Stuiver, M, (1997). Oxygen 18/16 variability in Greenland snow and ice with 10−3- to 105-year resolution. Journal of Geophysical Research 102, 26,455–26,470.Google Scholar
Hammer, C, Mayewski, P.A, Peel, D, Stuiver, M, (1997). Greenland Summit Ice Cores. Journal of Geophysical Research 102, 26,315–26,886.CrossRefGoogle Scholar
Jouzel, J, Alley, R.B, Cuffey, K.M, Dansgaard, W, Grootes, P.M, Hoffman, G, Johnson, S.J, Koster, R.D, Peel, D, Shuman, C.A, Stievenard, M, Stuiver, M, White, J.C, (1997). Validity of the temperature reconstruction from water isotopes in ice cores. Journal of Geophysical Research 102, 26,471–26,487.CrossRefGoogle Scholar
Meese, D.A, Gow, A.J, Alley, R.B, Zielinski, G.A, Grootes, P.M, Ram, M, Taylor, K.C, Mayewski, P.A, Bolzan, J.F, (1997). The Greenland Ice Sheet Project 2 depth–age scale: Methods and results. Geophysical Research 102, 26,411–26,423.CrossRefGoogle Scholar
Souchez, R, Tison, J.-L, Lorrain, R, Lemmens, M, Janssens, L, Stievenard, M, Jouzel, J, Sveinbjörnsdottir, A, Johnson, S.J, (1994). Stable isotopes in the basal silty ice preserved in the Greenland Ice Sheet at Summit: Environmental implications. Geophysical Research Letters 21, 693–696.Google Scholar
Stuiver, M, Braziunas, T.F, Grootes, P.M, Zielinski, G.A, (1997). Is there evidence for solar forcing of climate in the GISP2 oxygen isotope record?. Quaternary Research 48, 259–266.CrossRefGoogle Scholar
Stuiver, M, Grootes, P.M, Braziunas, T.F, (1995). The GISP2 δ18O climate record of the past 16,500 years and the role of the sun, ocean, and volcanoes. Quaternary Research 44, 341–354.CrossRefGoogle Scholar
Taylor, K.C, Lamorey, G.W, Doyle, G.A, Alley, R.B, Grootes, P.M, Mayewski, P.A, White, J.W.C, Barlow, L.K, (1993). The “flickering switch” of late Pleistocene climatic change. Nature 361, 432–436.CrossRefGoogle Scholar