research article
Gas isotopes in ice reveal a vegetated central Greenland during ice sheet invasion
December 20, 2006
Environmental conditions prevailing during build-up of the Greenland Ice Sheet (GIS) are not yet established. Here we use results from gas isotopes from basal ice of the GRIP ice core to show that central Greenland was vegetated during invasion by the ice sheet. The δ 13 CCH4 and δ18O of O2 values obtained were never encountered before in ice core studies. Such values are indeed the signature of a significant biological activity. Copyright 2006 by the American Geophysical Union.
Type
research article
Web of Science ID
WOS:000243105900010
Author(s)
Souchez, R.
Jouzel, J.
Landais, A.
Chappellaz, J.
Lorrain, R.
Tison, J.-L.
Date Issued
2006-12-20
Publisher
Published in
Volume
33
Issue
24
Article Number
L24503
Editorial or Peer reviewed
REVIEWED
Written at
OTHER
EPFL units
Available on Infoscience
November 23, 2022
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