Brent Dalrymple

Short description: American geologist

Gary Brent Dalrymple

File:SCIENTIST BRENT DALRYMPLE ADJUSTING MASS SPECTROMETER VACUUM FLIGHT TUBE, 1971. - U.S. Geological Survey, Rock Magnetics Laboratory, 345 Middlefield Road, Menlo Park, San Mateo HAER CAL,41-MENPA,5-31.tif

Brent Dalrymple adjusting mass spectrometer vacuum flight tube, 1971

Born|  (1937-05-09) May 9, 1937 (age 89)

Alhambra, California

Nationality| American
Known for| Research regarding the history of Earth's magnetic field and radiometric dating
Spouse(s)| 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)

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]

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]

## Contents

* 1 Selected publications
* 2 References
* 3 Sources
* 4 External links

## 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. https://archive.org/details/ancientearthanci0000dalr.
* Allan, Cox; Doell, Richard R.; Dalrymple, G. Brent (15 June 1963). "Geomagnetic Polarity Epochs and Pleistocene Geochronometry". Nature 198 (4885): 1049–1051. doi:10.1038/1981049a0. Bibcode: 1963Natur.198.1049C.

## References

1. ↑ "G. Brent Dalrymple". Pennsylvania State University. 2012. https://www.e-education.psu.edu/earth520/node/1775.
2. ↑ Lubick, Naomi (April 2005). "G. Brent Dalrymple: Deep time in a tarpaper shack". Geotimes. http://www.agiweb.org/geotimes/apr05/profiles.html. Retrieved 6 March 2009.
3. ↑ "National Science Foundation - The President's National Medal of Science". National Science Foundation. https://www.nsf.gov/od/nms/recip_details.cfm?recip_id=5000000000424.
4. ↑ "NCSE Supporter Dalrymple receives National Medal of Science". National Center for Science Education. February 16, 2005. http://ncse.com/news/2005/02/ncse-supporter-dalrymple-receives-national-medal-science-00781.
5. ↑ "Advisory Council". National Center for Science Education. https://ncse.com/about/advisory-council.

## Sources

* American Geophysical Union (includes photo)

## External links

* Oral history interview transcript with Brent Dalrymple on 7 June 2021, American Institute of Physics, Niels Bohr Library & Archives
* A Natural History of Time by Brent Dalrymple
* Brent Dalrymple Oral History Interview

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