Citation
M. Ram et G. Koenig, CONTINUOUS DUST CONCENTRATION PROFILE OF PRE-HOLOCENE ICE FROM THE GREENLAND ICE-SHEET PROJECT-2 ICE CORE - DUST STADIALS, INTERSTADIALS, AND THE EEMIAN, J GEO RES-O, 102(C12), 1997, pp. 26641-26648
Citations number
32
Journal title
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN journal
21699275
→ ACNP
Volume
102
Issue
C12
Year of publication
1997
Pages
26641 - 26648
Database
ISI
SICI code
2169-9275(1997)102:C12<26641:CDCPOP>2.0.ZU;2-8
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 cen
tral Greenland measured using laser-light scattering (LLS) from ice an
d compare it with the electrical conductivity method and oxygen isotop
e profiles. We describe how we dated the pre-Holocene ice using the an
nual dust peaks observed with LLS (starting from the accepted chronolo
gy 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 penet
rated the Eemian and that a record of a 10.2-kyr penultimate glaciatio
n is present in the GISP2 core.