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A Record of Antarctic Climate and Ice Sheet History Recovered
Author(s)
Language
English
Obiettivo Specifico
3.8. Geofisica per l'ambiente
Status
Published
JCR Journal
N/A or not JCR
Title of the book
Issue/vol(year)
88/50(2007)
Publisher
AGU
Pages (printed)
557-568
Issued date
2007
Abstract
Antarctica’s late Cenozoic (the past ~15 million
years) climate history is poorly known
from direct evidence, owing to its remoteness,
an extensive sea ice apron, and an ice
sheet cover over the region for the past 34
million years. Consequently, knowledge
about the role of Antarctica’s ice sheets in
global sea level and climate has relied heavily
upon interpretations of oxygen isotope records
from deep-sea cores. Whereas these isotopic
records have revolutionized our understanding
of climate-ice-ocean interactions,
questions still remain about the specific
role of Antarctic ice sheets in global climate.
Such questions can be addressed
from geological records at the marine margin
of the ice sheets, recovered by drilling
from floating ice platforms [e.g., Davey et al.,
2001; Harwood et al., 2006; Barrett, 2007].
years) climate history is poorly known
from direct evidence, owing to its remoteness,
an extensive sea ice apron, and an ice
sheet cover over the region for the past 34
million years. Consequently, knowledge
about the role of Antarctica’s ice sheets in
global sea level and climate has relied heavily
upon interpretations of oxygen isotope records
from deep-sea cores. Whereas these isotopic
records have revolutionized our understanding
of climate-ice-ocean interactions,
questions still remain about the specific
role of Antarctic ice sheets in global climate.
Such questions can be addressed
from geological records at the marine margin
of the ice sheets, recovered by drilling
from floating ice platforms [e.g., Davey et al.,
2001; Harwood et al., 2006; Barrett, 2007].
Type
article
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