Lamont-Doherty Earth Observatory Celebrates 75 Years of Geosciences
Briefly

"Founded in 1949 as the Lamont Geological Observatory, Lamont has consistently served as an international leader in scientific scholarship. Whether charting the ocean floor, measuring ocean carbon, recording global earthquakes, tracking glacier retreat or counting and decoding tree rings for clues to our planet's climate history, Lamont researchers are continuing their search for a deeper understanding of our planet."
"In the late 1940s, pioneering scientist Marie Tharp began collaborating with her colleague, geologist Bruce Heezen, to publish the first map of the Atlantic Ocean floor in 1957. Tharp and Heezen would go on to create the first map of the entire world's ocean floor in 1977; a monumental achievement that lent credence to the - at the time - revolutionary theory of plate tectonics."
"In 1956, Maurice Ewing, Lamont's first director, and researcher William Donn published their influential study, 'A Theory of Ice Ages' in the journal Science, which suggested that ice ages occur due to natural cycles of freezing and thawing of the Arctic Ocean. While the understanding of this phenomenon has shifted over the years, the paper marked the beginning of Lamont's history."
Read at State of the Planet
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