Hatten Schuyler Yoder, Jr., (March 20, 1921 – August 2, 2003) was a geophysicist and experimental petrologist who conducted pioneering work on minerals under high pressure and temperature.
He was noted for his study of silicates and igneous rocks.
Yoder was educated at the University of Chicago and the Massachusetts Institute of Technology.
He served as the fourth Director of the Carnegie Institution of Washington's Geophysical Laboratory, from 1971 to 1986.
[2] He died on August 2, 2003[2][3][4][5][6] at Suburban Hospital in Bethesda, Maryland from sepsis and renal failure.