Paleo Slide Set: Heinrich Events: Marine Record of Abrupt Climate Changes in the Late Pleistocene
Core 9

In this image, note the entirety of the H-1 event represented by the light-colored sediment in the 
bottom half of the image. The black mottling within the Heinrich event is probably due to bioturbation, 
the churning and stirring of sediments after deposition by living organisms such as deep sea worms. 

Photo Credits:
Bedford Institute of Oceanography