W. Jason Morgan, a geologist who attributed the most powerful upheavals — earthquakes, volcanoes and the formation of mountain ranges — to the shifts and collisions of plates on the Earth’s surface, died July 31 at his home in Natick, Mass. He was 87.
At an April 1967 meeting of the American Geophysical Union in Washington, Dr. Morgan had initially been scheduled to speak about the Puerto Rico trench, the deepest point in the Atlantic Ocean.
Dr. Morgan’s training in a branch of math called spherical trigonometry enabled him to look at the maps in a different way, as three-dimensional sections on a spherical Earth rather than as flat shapes on a map. In the ensuing years, plate tectonics became embedded in the earth science textbooks handed out to millions of high school and university students. And advances in technology only strengthened support for the theory.
Like plate tectonics, mantle plumes won a place in science textbooks. But in the early 2000s, a new wave of scientists challenged the idea, insisting they could not find evidence for the phenomenon. Dr. Morgan remained unwavering in his belief, continuing to assemble evidence for the theory.“He just felt the truth would win out,” his son said, adding, “He did have a quality of assuming other people could see what he saw.
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