Terracesatolls: 3518 m Dowsett and Cronin, 1990

1
Mid Pliocene sea level estimates
Terraces/atolls 3518 m Dowsett
and Cronin, 1990
20-25 m Wardlaw and Quinn, 1991 d18O/SST
lt25 m Kennett and Hodell, 1993
2
Today size of EAIS limited by size of continent.
At 3 m.y.BP sea level may have been more than
35 meters higher than at present.
A 40-50 meter s.l. ice sheet (DeConto and
Pollard, 2003) Antarctica today 61 meters s.l.
WHEN WAS THIS THRESHOLD CROSSED????