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

被引：56

作者：

Ram, M

Koenig, G

机构：

[1] Department of Physics, 239 Fronczak Hall, State University of New York at Buffalo, Buffalo, 14260, NY

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS | 1997年 / 102卷 / C12期

关键词：

D O I：

10.1029/96JC03548

中图分类号：

P7 [海洋学];

学科分类号：

0707 ;

摘要：

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.

引用

页码：26641 / 26648

页数：8

共 34 条

[1] ABRUPT INCREASE IN GREENLAND SNOW ACCUMULATION AT THE END OF THE YOUNGER DRYAS EVENT [J].