Word: emiliani
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Dates: during 1960-1969
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...would have to know exactly where and when to explode the bombs-an art that still eludes them, although they may eventually be able to predict quakes by carefully calculating earth stresses. Still more delicate would be the decision on the size of the bomb. The Miami seismologists-Cesare Emiliani, Christopher G. A. Harrison and Mary Swanson-say that the job probably could be done by high-yield nuclear devices of one to ten megatons, presumably H-bombs. But other seismologists point out that an explosion meant only to keep the earth's crust moving slightly may, in fact...
...system promises to pinpoint the Pleistocene. Developed at the University of Miami by Dr. John Rosholt of the U.S. Geological Survey and Italian-born Dr. Cesare Emiliani, it depends on the fact that a tiny amount of uranium is dissolved in all sea water. When it slowly decays radioactively, it yields protoactinium 231 and thorium 230, both of which attach themselves to sediment particles and sink slowly to the bottom. There they in turn decay, but protoactinium 231 decays faster than thorium 230. The age of sediment on the ocean floor can therefore be determined by measuring the relative abundance...
...dating the ocean-bottom sediments, Rosholt and Emiliani estimate that the last warm interglacial Pleistocene period extended from 100,000 B.C. to 67,000 B.C., with its temperature peak coming about 93,000 B.C. Since the oldest skull fragments of Homo sapiens (true man) are believed to date from the warmest part of the last interglacial period, this date, 93,000 B.C., can be considered the provisional birth date of the human race...