Follow this link to skip to the main content NASA - National Aeronautics and Space Administration Text and images site Contact NASA


Find it at NASA:

Global Navigation


Banner feature 1

Earth Science Division


Earth Science Division

Choose another category:

Org Chart
Postdoc Opportunities
Earth Image of the Day

Earth Science Division: Earth Science Directory

SGE: Biospheric Science Branch Staff
Friedemann Freund


MS: 242-4

Education: Ph.D., Mineralogy/ Crystalography, 1959
Marburg University, Germany

Professional Experience:  
1989-Present Principal Investigator at SETI Institute
1989-Present Adjunct Professor, Physics Department, San Jose State University
1985-Present NASA Associate at NASA Ames Research Center

Honors and Awards: 2004-2005 GEST* Fellow at NASA Goddard Space Flight Center, Planetary Geodynamics Labratory

*Goddard earth Science and Technology

Research Interests: Defects in crystals, proton conductivity, defects in minerals caused by the incorporation of H 2 O, CO 2 and other gas/fluid components. Prebioitic chemistry in the solid state and origin of Life. Valence fluctuations in the oxygen anion sublattice in oxide/silicate minerals. Rock physics in relation to earthquake and pre-earthquake phenomena.

Selected Recent Publications:
Freund, M.M. and F.T. Freund (2006) “Solid Solution Model for Nanom eter-Sized Interstellar Dust Grains and their Organics”, Astrophys. J, 639, 210-226.
Freund, R.T. et al. (2006) Stimulated infrared emission from rocks: assessing a stress indicator, eEarth 1, 97-121,
St-Laurent, F., J.S. Derr, and F. Feeund (2006) Earthquake Lights and the Stress- Activation of Positive Hole Charge Carriers in Rocks, Phys. Chem. Earth, 31, 305-312.
Freund, F., A. Takeuchi, and B.W.S., Lau (2006) Electric Currents Streaming out of Stressed Igneous Rocs - A Step Towards Understanding Pre-Earthquake Low Frequency EM Emissions. Phys. Chem. Earth, 31, 389-396.
Ouzounov, D., and F.T. Freund (2004), Mid-infrared emission prior to strong earthquakes analyzed by remote sensing data, Adv. Space Res., 33, 268-273.
Freund, F.T., et al. (2004), Stress-Indued Changes in the Electrical Conductivity of Igneous Rocks and the Generation of Ground Currents, Terrestrial, Atmospheric Oceanic Sciences, 15, 437-467.
Freund, F. (2003), On the electrical conductivity structure of the stable continental crust, J. Geodynamics, 35, 353-388.
Freund, F. (2002), Charge generation and propagation in rocks, J. Geodynamics, 33, 545-572.

FirstGov - Your First Click to the US Government
+ Freedom of Information Act
+ Budgets, Strategic Plans and Accountability Reports
+ The President's Management Agenda
+ NASA Privacy Statement, Disclaimer,
Spacerand Accessibility Certification

+ Inspector General Hotline
+ Equal Employment Opportunity Data Posted Pursuant to the No Fear Act
+ Information-Dissemination Priorities and Inventories

NASA - National Aeronautics and Space Administration

NASA Official: Steve Hipskind
Content Manager: Gailynne Bouret
Webmaster: Stephanie Ramirez
Last Updated: August 22, 2007

+ Contact NASA