Brent Dalrymple

Gary 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]

Gary Brent Dalrymple
Brent Dalrymple adjusting mass spectrometer vacuum flight tube, 1971
Born	(1937-05-09) May 9, 1937 (age 88) Alhambra, California
Nationality	American
Known for	Research regarding the history of Earth's magnetic field and radiometric dating
Spouse	Sharon[1]
Awards	Fellow 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
Fields	Geology
Thesis	Potassium-argon dates and the Cenozoic chronology of the Sierra Nevada, California (1963)

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; Doell, Richard R.; Dalrymple, G. Brent (June 15, 1963). "Geomagnetic Polarity Epochs and Pleistocene Geochronometry". Nature. 198 (4885): 1049–1051. Bibcode:1963Natur.198.1049C. doi:10.1038/1981049a0. S2CID 4180105.