Glacier in Chile Ended a Major Readvance about 36,000 Years Ago: Some Global Comparisons

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Science  07 Dec 1973:
Vol. 182, Issue 4116, pp. 1017-1019
DOI: 10.1126/science.182.4116.1017


About 36,000 carbon-14 years ago, a glacier in southern Chile reached the culmination of a major readvance. Severe global cooling at about that time, preceded and followed by warmer conditions, is implied also by other glacial, floral, and some oceanographic evidence, but not by other oceanographic evidence nor by studies of past eustatic sea levels. Severe global cooling at about that time is incompatible with the Milankovitch theory of climatic change.