STABLE ISOTOPES IN THE BASAL SILTY ICE PRESERVED IN THE GREENLAND ICE-SHEET AT SUMMIT - ENVIRONMENTAL IMPLICATIONS

被引：31

作者：

SOUCHEZ, R

TISON, JL

LORRAIN, R

LEMMENS, M

JANSSENS, L

STIEVENARD, M

JOUZEL, J

SVEINBJORNSDOTTIR, A

JOHNSEN, SJ

机构：

[1] CENS,CEA,DSM,MODELISAT CLIMAT & ENVIRONNEMENT LAB,F-91191 GIF SUR YVETTE,FRANCE

[2] LAB GLACIOL & GEOPHYS ENVIRONM,F-38402 ST MARTIN DHERES,FRANCE

[3] UNIV ICELAND,INST SCI,REYKJAVIK,ICELAND

[4] UNIV COPENHAGEN,NIELS BOHR INST,DEPT GEOPHYS,DK-2200 COPENHAGEN,DENMARK

来源：

GEOPHYSICAL RESEARCH LETTERS | 1994年 / 21卷 / 08期

关键词：

D O I：

10.1029/94GL00641

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Modelling ice sheet behaviour in the context of climatic changes depends on initial and boundary conditions which can be better defined by studying the composition of basal ice. This study deals with basal ice reached by deep drilling at Summit in Central Greenland (GRIP core). The isotopic composition of this ice indicates that ice formed at the ground surface in the absence of the ice sheet largely contributed to its formation. The basal silty ice is a remnant of a growing stage of the ice sheet, possibly the original build up.

引用

页码：693 / 696

页数：4

共 17 条

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