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Continuous dust concentration profile of pre-Holocene ice from the Greenland Ice Sheet Project 2 ice core: Dust stadials, interstadials, and the Eemian

  • SUNY Buffalo

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67 Scopus citations

Abstract

In this paper, we present and discuss the pre-Holocene dust profile of the Greenland Ice Sheet Project 2 (GISP2) ice core retrieved from central Greenland measured using laser-light scattering (LLS) from ice and compare it with the electrical conductivity method and oxygen isotope profiles. We describe how we dated the pre-Holocene ice using the annual dust peaks observed with LLS (starting from the accepted chronology to 2250 m) and obtained a chronology in substantial accord with the gas-age dating of the ice. We also show that the GISP2 ice core penetrated the Eemian and that a record of a 10.2-kyr penultimate glaciation is present in the GISP2 core.

Original languageEnglish
Pages (from-to)26641-26648
Number of pages8
JournalJournal of Geophysical Research: Oceans
Volume102
Issue numberC12
DOIs
StatePublished - Nov 30 1997

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