Deglacial changes of the southern margin of the southern westerly winds revealed by terrestrial records from sw patagonia (52 degrees s)

Much of the ongoing discussion regarding synchrony or bipolar asynchrony of paleoclimate events has centered on the timing and structure of the last glacial termination in the southern mid- latitudes, in particular the southwestern Patagonian region (50 � e55 � S). Its location adjacent to the Drake Passage and near the southern margin of the southern westerly winds (SWW) allows examining the postulated links between the Southern OceaneSWW coupled system and atmospheric CO2 variations through the last glacial termination. Results from two sites located in the Ultima Esperanza area (52