Word: barghoorn
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Fisher Professor of Natural History Eiso S. Barghoorn Jr. considered by his colleagues to have built an international reputation for Harvard's Department of Paleontology, died last Friday at age 68 of natural causes...
...Basin extends from Boston' Harbor to a ridge of volcanic rocks running from Milton north to Lynn and westward to Route 128. The discovery, which is formally announced in the May 7 issue of Science magazine, solves a "mystery plaguing us for over 100 years," said Elso S. Barghoorn. Fisher Professor of Natural History and another participant in the year-long research project...
Harvard paleontologist Elso S. Barghoorn liberated a prehistoric algae from the rock prison it had been locked in for the past 3.5 billion years. The freed algae had no immediate words for the press, although Barghoon claims it is the oldest form of life anyone has ever seen...
Then how and when did free oxygen begin appearing in the atmosphere? A clue to the answer has been found in the incredibly old sedimentary rocks of South Africa's eastern Transvaal by Harvard's Elso Barghoorn and Andrew Knoll, now with the Oberlin College department of geology. To the naked eye, the 3.5 billion-year-old rocks Barghoorn and Knoll collected during a visit last year revealed no traces of early life. But the scientists soon uncovered the stones' secrets. Returning to Harvard with samples of the rock, the pair used a diamond cutter...
...Barghoorn and Knoll believe that their primitive fossils-the oldest direct evidence of terrestrial life-are the ancestors of modern blue-green algae or photosynthetic bacteria, both of which convert carbon dioxide into food and oxygen. If they are correct, these organisms 3.5 billion years ago were already pumping into the atmosphere the oxygen upon which most of today's terrestrial life now depends...