I am a paleoceanographer/marine
geologist who uses geochemical analyses of marine sediments to understand
how and why past climates have changed.
Current research
projects include deep-sea sediment core investigations into the timing and abruptness of tthe African Humid Period between 10,000-5,000 years ago, a time when North Africa was much wetter than today. Our group is also developing paleoceanographic records of ocean temperature and salinity variations along meridional and zonal sediment core transects to place contraints on the amplitudes climate zone shifts in the past.
I've had a continuing interest
in Pliocene-Pleistocene African paleoenvironmental changes and their
relationships to evolutionary junctures in human evolution as well
as understanding the role of the tropical oceans in the mid-Pliocene
onset and amplification of glacial cycles.
Abrupt
Climate Change Research at Lamont
Updated:
October 3, 2008
