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Astronomy and Astrophysics
Don L. Anderson dies at 81; former director of Caltech's seismology lab
Don L. Anderson dies at 81; former director of Caltech's seismology lab

Don L. Anderson, a professor emeritus of geophysics at Caltech and former head of its Seismological Laboratory, died of cancer Dec. 2 in Cambria, Calif., according to the school. He was 81. Anderson directed the lab from 1967 to 1989 and continued to conduct research on the Earth's interior until his retirement in 2002. He developed, with geophysicist Adam Dziewonski, what has become a standard model of the Earth's mostly hidden composition and dynamics. In 1989, he published his first edition of "Theory of the Earth," a text that brings together often-conflicting findings from a wide range of scientific disciplines. "In spite of the fact that there is only one...

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