Open AccessContinuous dust concentration profile of pre‐Holocene ice from the Greenland Ice Sheet Project 2 ice core: Dust stadials, interstadials, and the Eemian
Author(s) -
Ram Michael,
Koenig Gerson
Publication year - 1997
Publication title -
journal of geophysical research: oceans
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/96jc03548
Subject(s) - stadial , ice core , geology , eemian , holocene , ice sheet , greenland ice sheet , chronology , glacial period , ice sheet model , physical geography , cryosphere , climatology , ice stream , geomorphology , paleontology , interglacial , sea ice , geography
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.