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Brent Dalrymple

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Gary Brent Dalrymple
Brent Dalrymple adjusting mass spectrometer vacuum flight tube, 1971
Born (1937-05-09) May 9, 1937 (age 83)
Known forResearch regarding the history of Earth's magnetic field and radiometric dating
AwardsFellow of the American Geophysical Union since 1975, and was the organization's president from 1990 to 1992; received an honorary doctorate from Occidental College in 1993
Scientific career
ThesisPotassium-argon dates and the Cenozoic chronology of the Sierra Nevada, California (1963)
InfluencesAllan V. Cox

G. Brent Dalrymple (born May 9, 1937) is an American geologist, author of The Age of the Earth and Ancient Earth, Ancient Skies, and National Medal of Science winner.[2]

He was born in Alhambra, California. After receiving a Ph.D. from University of California, Berkeley, Dalrymple went to work at the U.S. Geological Survey (USGS) in Menlo Park, California. In 1994 he left the USGS to accept a position at Oregon State University, where he served on the faculty until retiring in 2001. He is a member of the National Academy of Sciences.

In 2003, Dalrymple was awarded the National Medal of Science.[3] He was presented with the Medal at a ceremony in 2005.[4]

Since 2013, Dalrymple has been listed on the Advisory Council of the National Center for Science Education.[5]

Selected publications

  • Dalrymple, Brent (1994). The Age of the Earth. Stanford University Press. ISBN 0-8047-2331-1.
  • Dalrymple, Brent (2004). Ancient Earth, ancient skies: the age of Earth and its cosmic surroundings. Stanford University Press. ISBN 0-8047-4933-7.
  • Allan, Cox; Richard R. Doell; G. Brent Dalrymple (15 June 1963). "Geomagnetic Polarity Epochs and Pleistocene Geochronometry". Nature. 198 (4885): 1049–1051. doi:10.1038/1981049a0. S2CID 4180105.


  1. ^ "G. Brent Dalrymple". Pennsylvania State University. 2012. Retrieved 27 January 2014.
  2. ^ Lubick, Naomi (April 2005). "G. Brent Dalrymple: Deep time in a tarpaper shack". Geotimes. Retrieved 6 March 2009.
  3. ^ "National Science Foundation - The President's National Medal of Science". Retrieved 2014-07-26.
  4. ^ "NCSE Supporter Dalrymple receives National Medal of Science". National Center for Science Education. February 16, 2005. Retrieved 2008-05-17.
  5. ^ "Advisory Council". National Center for Science Education. Archived from the original on 2013-08-10. Retrieved 2018-10-30.


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Brent Dalrymple
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