The ICE-3G Model of Late Pleistocene Deglaciation: Construction, Verification, and Applications

  • W. R. Peltier
Part of the NATO ASI Series book series (ASIC, volume 334)


A refined model of late Pleistocene deglaciation has been constructed by employing a large set (192) of 14C controlled time series of relative sea level change from sites that were covered by ice at Würm-Wisconsin maximum. The RSL histories at these sites are predicted using a theoretical model of post-glacial rebound with an assumed known mantle viscosity and the ice thickness variations are adjusted in order to achieve a best fit to the observations. The global validity of this model is confirmed by comparing the predictions of theory with observations for 200 RSL time series from non-ice-covered sites. The ICE-3G model constructed in this way has proven itself to be very effective in a number of applications, notably in the solution of the inverse problem for mantle viscosity (see the paper by Mitrovica and Peltier in these proceedings) and in analysis of the extent to which tide gauge data on secular sea level change are contaminated by the influence of the glacial isostatic adjustment process. Recent results by Bard et al. (1990) on the calibration of the 14C timescale have proven to provide very important constraints on the validity of the new model.


Tide Gauge Glacial Isostatic Adjustment Tide Gauge Record Tide Gauge Data Mantle Viscosity 
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Copyright information

© Springer Science+Business Media Dordrecht 1991

Authors and Affiliations

  • W. R. Peltier
    • 1
  1. 1.Department of PhysicsUniversity of TorontoTorontoCanada

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