The last glacial-holocene transition in southern Chile

Warming at the Last glacial termination in the North Atlantic region was in terrupted by a period of renewed glacial activity during the Younger Dryas chronozone (YDC). The underlying mechanism of this cooling remains elusive, but hypotheses turn on whether it was a global or a North Atlantic phenome non. Chronological, sedimentological, and palaeoecological records from sed iments of small Lakes in oceanic southern Chile demonstrate that there was no YDC cooling in southern Chile. It is therefore Likely that there was lit tle or no cooling in southern Pacific surface waters and hence that YDC coo ling in the North Atlantic was a regional, rather than global, phenomenon.