John Imbrie

from Wikipedia, the free encyclopedia

John Imbrie (born July 4, 1925 in Penn Yan , New York , † May 13, 2016 in Riverside , Rhode Island ) was an American geologist and paleoclimatologist. He is considered to be one of the founders of paleoceanography and is known for finding evidence of astronomical causes for the formation of the Ice Ages .

Imbrie grew up in New York State and studied at Coe College in Cedar Rapids and at Princeton University (Bachelor 1948). He made his master's degree in geology from Yale University in 1949 and received his doctorate there in 1951. He was then at the Woods Hole Oceanographic Institution and from 1952 Assistant Professor at Columbia University , where he studied radioactive dating techniques at the Lamont Doherty Geological Observatory. He was finally professor and head of the Geological Faculty at Columbia University and since 1967 professor at Brown University , most recently as Henry L. Doherty Professor of Oceanography.

In 1981 he became a MacArthur Fellow . In 1986 he received the Maurice Ewing Medal of the American Geophysical Union and in 1991 the William Twenhofel Medal of the Society for Sedimentary Geology. In 1994 he received the Wilbur Cross Medal. He was a member of the National Academy of Sciences (1978), the American Geological Society, the American Academy of Arts and Sciences (1981), the American Philosophical Society, and the American Meteorological Society. In 1990 he received the Leopold von Buch badge .

During his participation in the CLIMAP project (from the end of the 1960s), he found confirmation of the Milankovic theory of the formation of the Ice Age in ocean sediments . To this end, he developed computer methods to determine the water temperature from the finds of foraminifera and other fossils in the sediments. In 2003 he received the Milutin Milankovic Medal from the European Geophysical Society (EGS).

Fonts

  • with Katherine Palmer Imbrie Ice ages- solving the mystery , Enslow Publishing 1979, Harvard University Press 1986 (written with his daughter)
  • with Norman D. Newell : Approaches to Paleoecology, Wiley 1964

Web links

Individual evidence

  1. John Imbrie Obituary
  2. James D. Hays, Imbrie, Nicholas J. Shackleton Variations in the Earth's Orbit: Pacemaker of the Ice Ages , Science, Volume 194, 1976, pp. 1121-1132
  3. ^ Acknowledgment of Imbrie on the occasion of the Milankovich Medal