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Comparison of oxygen isotope records from the Greenland Ice Sheet Project 2 (GISP2) and Greenland Ice-core Project (GRIP) Greenland ice cores.

Author(s) : GROOTES P. M., STUIVER M., WHITE J. W. C., JOHNSEN S., JOUZEL J.

Type of article: Article

Summary

Recent results from the GRIP Summit ice core suggest that the climate in Greenland has been remarkably stable during the Holocene, but was extremely unstable for the time period represented by the rest of the core, spanning the last two glaciations and the intervening Eemian interglacial. The authors present the complete oxygen isotope record for GISP2 core, drilled 28 km west of the GRIP core. They observe large, rapid climate fluctuations throughout the last glacial period, which closely match those reported for the GRIP core. However, in the bottom 10% of the cores, spanning the Eemian interglacial and the previous glaciation, there are significant differences between the two records. It is possible that ice flow may have altered the chronological sequences of the stratigraphy for the bottom part of one or both of the cores. Further work is necessary.

Details

  • Original title: Comparison of oxygen isotope records from the Greenland Ice Sheet Project 2 (GISP2) and Greenland Ice-core Project (GRIP) Greenland ice cores.
  • Record ID : 1994-3228
  • Languages: English
  • Subject: Environment, General information
  • Source: Nature - vol. 366 - n. 6455
  • Publication date: 1993/12/09
  • Document available for consultation in the library of the IIR headquarters only.

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