Paleo Slide Set: Heinrich Events: Marine Record of Abrupt Climate Changes in the Late Pleistocene
Variability in sediment properties within Heinrich and non-Heinrich sediments from same core.

Other researchers are taking a closer look at variability within Heinrich events. This is particularly 
effective at sites close to former ice sheet margins, such as the Hudson Strait where Heinrich events 
can exceed 0.5 m in thickness. Moreover, these thick deposits were laid down during relatively short 
spans of a few hundred years, very rapidly in geological terms. Not only were the changes between Heinrich 
and non- Heinrich events abrupt, but conditions within Heinrich events could also vary to a greater extent 
than once thought. 

Photo Credits:
Donnie Barber and Thomas G. Andrews 
NOAA Paleoclimate Program