Word: dalziel
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Dates: during 1970-1979
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Geologists Ian Dalziel of Columbia University and Peter Barker of the University of Birmingham led a multinational scientific team aboard the research ship Glomar Challenger this spring, probing the ocean depths east of the Falkland Islands. Lowering a coring drill 8,500 ft. to the bottom, they penetrated through 1,835 ft. of sediment before beginning to bite into the solid rock that they were looking for. Analysis of the core samples brought to the surface identified it as granite about 600 million years old. The find proved that the rock was continental shelf and not ocean basin crust, which...