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Word: geochronologist (lookup in dictionary) (lookup stats)
Dates: during 1940-1949
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Usage:

Died. Dr. Gerard de Geer, 84, University of Stockholm's famed geochronologist; in Stockholm. By measurements of soil cross-sections, Baron de Geer established a climatic calendar that reached back 16,000 years...

Author: /time Magazine | Title: Milestones, Aug. 23, 1943 | 8/23/1943 | See Source »

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