Thomas J. Ahrens

Thomas Julian Ahrens (April 25, 1936 – November 24, 2010) was a Professor of Geophysics at Caltech who was known for his study of the terrestrial planets and impact processes on planetary surfaces. Ahrens died on November 24, 2010 at the age of 74. ^[1]

Contents 1 Positions held 2 Education 3 Awards 4 See also 5 References

Positions held

Geophysicist, Pan American Petroleum Corporation, 1958–59

Second Lieutenant, U.S. Army, Ballistics Research Laboratory, 1959–60

Geophysicist, Head Geophysics Section, Poulter Laboratory, Stanford Research Institute, 1962-67. He was hired and worked for Thomas Poulter. ^[2]

Associate Professor of Geophysics, Caltech, 1967–76; Professor, 1976–2004; W. M. Keck Foundation Professor of Earth Sciences, 1996–2001; Jones Professor, 2004–05; Jones Professor Emeritus, 2005-2010. ^[3]

Education

B.S., Massachusetts Institute of Technology, 1957; M.S., Caltech, 1958; Ph.D., Rensselaer Polytechnic Institute, 1962.

Awards

Awarded the AAAS Newcomb Cleveland Prize in 1984 along with co-authors Sally M. Rigden and Edward M. Stolper for a report "Densities of Liquid Silicates at High Pressures," Science 30 November 1984. ^[4]

Elected to the National Academy of Sciences in 1992 ^[5]

He received the Harry H. Hess Award in 1996 ^[2]

See also

• List of geophysicists

References

1. ^ Caltech press release http://media.caltech.edu/press_releases/13395
2. ^ ^{a b} Ahrens Receives 1996 Harry H. Hess Medal http://www.agu.org/inside/awards/bios/ahrens_thomasj.html
3. ^ Caltech Bio http://www.gps.caltech.edu/people/tja/profile
4. ^ American Association for the Advancement of Science (AAAS) http://archives.aaas.org/people.php?p_id=431
5. ^ http://www.nasonline.org/site/Dir/96413405?pg=rslts

Persondata
Name	Ahrens, Thomas J.
Alternative names
Short description	Geophysicist
Date of birth	April 25, 1936
Place of birth	Germany
Date of death	November 24, 2010
Place of death	Pasadena, California