@conference {1549, title = {Abrupt vegetation changes in tropical South America over the last 120,000 years}, booktitle = {EOS Abstracts, 2006 Ocean Sciences Meeting}, year = {2006}, note = {id: 1078}, month = {2006}, address = {Honolulu, HI}, author = {Hughen, K. A. and Drenzek, N. and Bice, M. and Eglinton, T. I.} }