Don L. Anderson
Eleanor and John R. McMillan
Professor of Geophysics, Emeritus
Ph.D., California Institute of Technology

 
Solid Earth Geophysics

Don L. Anderson is Professor of Geophysics in the Division of Geological and Planetary Sciences at Caltech. He received his B.S. in Geology and Geophysics from R.P.I. in 1955 and his Ph.D. in Geophysics and Mathematics from Caltech in 1962. He served with Chevron Oil Company, the Air Force Cambridge Research Center and the Arctic Institute of North America from 1955 to 1958. He was elected to the American Academy of Arts and Sciences in 1972, the National Academy of Sciences in 1982 and the American Philosophical Society in 1990. He has received the Emil Wiechert Medal of the German Geophysical Society, the Arthur L. Day Gold Medal of the Geological Society of America and the Gold Medal of the Royal Astronomical Society, the Bowie Medal of the American Geophysical Union, the Crafoord Prize at the Royal Swedish Academy of Science and the National Medal of Science. He is Past President of the American Geophysical Union.

Don L. Anderson is interested in the origin, evolution, structure and composition of Earth and other planets. His work integrates seismological, solid state physics, geochemical and petrological data. He was Director of the Seismological Laboratory of the California Institute of Technology from 1967-1989.

 
Anderson, D. L., 1995. Through the Glass Lightly; Viewpoint, Science, 267, 1618.

Anderson, D. L., 1995. Lithosphere, asthenosphere and perisphere, Reviews of Geophysics, 33, 125-149.

King, S. D. and D. L. Anderson, 1995. An Alternative Mechanism of Flood Basalt Formation, Earth and Planetary Science Letters, 136, 269-279.

Polet, J. and D. L. Anderson, 1995. Depth extent of cratons as inferred from tomographic studies, Geology, 23, 205-208.

Wen, L. and D. L. Anderson, 1995. The Fate of Slabs Inferred from Seismic Tomography and 130 Million Years of Subduction, Earth and Planetary Science Letters, 133, 185-198.

Anderson, D. L., 1996. Book review of "Equations of State of Solids for Geophysics and Ceramic Science" by Heinrich D. Holland and Ulrich Petersen, American Scientist, 85, 71-72.

Anderson, D. L., 1996. Book review of "Petrology: The Study of Igneous, Sedimentary & Metamorphic Rocks" by Loren A. Raymond, American Scientist, 84, 398-400.

Anderson, D. L., 1996. Book review of "Living Dangerously: The Earth, Its Resources, and the Environment" by Heinrich D. Holland and Ulrich Peterson, American Scientist, 85, 71-72.

Anderson, D. L., 1996. Enriched Asthenosphere and Depleted Plumes, International Geology Review, 38, 1-21.

Hardeback, J. and D. L. Anderson, 1996. Eustasy as a test of a Cretaceous superplume hypothesis, Earth and Planetary Science Letters, 137, 101-108.

Heller, P. L., D. L. Anderson and C. L. Angevine, 1996. Is the Middle Cretaceous Pulse of Rapid Seafloor Spreading Real or Necessary?, Geology, 24, 491-494.

Anderson, D. L., Feb. 4, 1997. Citation for 1996 William Bowie Medal to Eugene Shoemaker, EOS, 53.

Anderson, D. L., 1997. Book review of "Volcanoes of the Solar System" by Charles Frankel and "Planetary Volcanism: A Study of Volcanic Activity in the Solar System" by Peter Cattermole, Physics Today, 77.

Wen, L. and D. L. Anderson, 1997. Slabs, hotspots, cratons and mantle convection revealed from residual seismic tomography in the upper mantle, Physics of the Earth and Planetary Interiors, 99, 131-143.

Wen, L. and D. L. Anderson, 1997. Layered mantle convection: A model for geoid and topography and seismology, Earth and Planetary Science Letters, 146, 367-377.

Wen, L. and D. L. Anderson, 1997. Present-day Plate Motion Constraint on Mantle Rheology and Convection,Journal of Geophysical Research, 102, 24, 639-24, 653.

Anderson, D. L., 1998. The Scales of Mantle Convection, Tectonophysics, 284, 1-17.

Anderson, D. L., 1998. The Helium Paradoxes, Proceedings of the National Academy of Sciences USA, 95, 4822-4827.

Anderson, Don L., 1998. A Model to Explain the Various Paradoxes Associated with Mantle Noble Gas Geochemistry, Proceedings of the National Academy of Sciences, 95, 9087-9092.

Anderson, D. L., 1998. The EDGES of the Mantle, The Core-Mantle Boundary Region, Michael Gurnis, Michael E. Wysession, Elise Knittle and Bruce A. Buffett, eds., American Geophysical Union, Washington, D.C., 255-271.

Kanamori, H., D. L. Anderson and T. H. Heaton, 1998. Frictional Melting During the Rupture of the 1994 Bolivian Earthquake, Science, 279, 839-842.

King, S. D. and D. L. Anderson, 1998. Edge-driven convection. Earth and Planetary Science Letters, v. 160, p. 289-296.

Anderson, Don L., 1999. The First Ten Million Millennia or So, Physics Today, 49-51.

Anderson, D. L., 1999.  A Theory of the Earth: Hutton and Humpty-Dumpty and Holmes. In: Craig, G.Y. & Hull, J.H. (eds.)  James Hutton - Present & Future, Geological Society, London, Special Publications, 150, 13-35.

Anderson, D. L., 1999. The Inside of Earth: Deep-Earth Science from the Top Down, Engineering & Science, 62(1/2), 10-19.

Anderson, D. L., 1999. A Tale of Two Planets, International Geology Review, 41, 1051-1057.

Anderson, D. L., 2000. Thermal State of the Upper Mantle; No Role for Mantle Plumes, Geophysical Research Letters, 27, 22, 3623-3626 (Nov 2000).

Anderson, D. L., 2000. The Statistics of Helium Isotopes Along the Global Spreading Ridge System and the Central Limit Theorem, Geophysical Research Letters, 27, 16, 2401-2404, 2000.

Anderson, D. L., 2000. The Statistics and Distribution of Helium in the Mantle, International Geology Review, 42, 289-311, 2000.

W. Keller, D. Anderson, And R. Clayton, 2000. Resolution of tomographic models of the mantle beneath Iceland, Geophys. Res. Letters Vol. 27, No. 24, p. 3993-3996, 2000.

J. Favela and D. Anderson, 2000. Extensional tectonics and global volcanism, in book titled Problems in Geophysics for the New Millennium. ed. Boschi, E., Ekstrom, G. and Morelli, A., Editrice Compositori, Bologna, pp. 463-498. (An additional PDF document with the figures referred to in this publication may be found here)

Anderson, D. L., 2001, Top-Down Tectonics?, Science, 293, 2016-2018. (If you are unable to access the Science article, the original paper in Acrobat PDF format can be found here)

Anderson, D. L., 2001. A statistical test of the two reservoir model for helium, Earth and Planetary Science Letters, 193, 77-82.

Anderson, D. L., 2002. The Case for Irreversible Chemical Stratification of the Mantle, International Geology Review, Vol. 44, 2002, p. 97-116.

Anderson, D. L., 2002, How many Plates?, Geology, vol.30, no.5, pp.411-414.

Anderson, D. L., 2002. The inner inner core, Proc. Natl. Acad. Sci., 99, 13966-13968.

Anderson, D. L. 2002. Occam's Razor; Simplicity, Complexity and Global Geodynamics, Proceedings of the American Philosophical Society, Vol 146, 56-76, March 2002.

Anderson, D. L., 2002. Plate Tectonics as a Far-From-Equilibrium Self-Organized System, p. 411-425 in AGU Monograph: Plate Boundary Zone, Geodynamics Series 30, S. Stein & J. Freymuller, editors.

Anderson, D. L., Mantle Plume Debate, 2003, Astronomy and Geophysics, Royal Astronomical Society, vol. 44 p. 10-11. (See www.mantleplumes.org)

Meibom, A., Anderson, D.L., Sleep, N.H., Frei, R., Chamberlain, C.P., Hren, M.T., Wooden, J.L., 2003. Are high 3He/4He ratios in oceanic basalts an indicator of deep-mantle plume components? Earth Planet Science Letters 208, pp. 197-204.

Meibom, A. and Anderson, D.L., 2003. The Statistical Upper Mantle Assemblage, Earth Planet Science Letters, 217, pp. 123-139. (See www.mantleplumes.org/Preprints.html)

Anderson, D.L., Simple scaling relations in geodynamics; the role of pressure in mantle convection, Chinese Science Bulletin 49, pp. 2017-2021. (An additional PDF document with the figure referred to in this publication may be found here).

Foulger, G.R. and D.L. Anderson, 2005, A cool model for the Iceland hotspot: An origin for the Icelandic volcanic province in the remelting of subducted Iapetus slabs at normal mantle temperatures, J. Volc. Geotherm. Res., 141, 1-22.

Foulger, G.R., J.H. Natland and D.L. Anderson, 2005. A source for Icelandic magmas in remelted Iapetus crust, J. Volc. Geotherm. Res., 141, 23-44.

McHone, J.G., D.L. Anderson, E.K. Beitel, and Y.A. Fialko, 2005, Giant Dikes: Patterns and Plate Tectonics, in Foulger, G.R., Natland, J.H., Presnall, D.C., and Anderson, D.L., eds., Plates, plumes, and paradigms: Geological Society of America Special Paper 388, p. 401-420.

Foulger, G. R., James H. Natland, and Don L. Anderson, 2005, Genesis of the Iceland Melt Anomaly by Plate Tectonic Processes, in Foulger, G.R., Natland, J.H., Presnall, D.C, and Anderson, D.L., eds., Plates, Plumes & Paradigms, Boulder, CO, Geological Society of America Special Paper 388, p.595-626.

Meibom, Anders, Norman H. Sleep, Kevin Zahnle, and Don L. Anderson, 2005, Models for Noble Gases in Mantle Geochemistry: Some Observations and Alternatives, Geological Society of America Special Paper 388, pp.347-363.

Sandwell, David, Don L. Anderson, and Paul Wessel, 2005, Global Tectonic Maps, in Plates, Plumes & Paradigms, Foulger, G.R., Natland, J.H., Presnall, D.C, and Anderson, D.L., eds., Boulder, CO, Geological Society of America , Special Paper 388, pp.1-10.

Anderson, D.L. 2005. Large igneous provinces, delamination, and fertile mantle, Elements, 1, pp. 271-275.

Anderson, D.L. and Schramm, K.A., 2005, Global Hotspot Maps, in Plates, Plumes & Paradigms, Foulger, G.R., Natland, J.H., Presnall, D.C, and Anderson, D.L., eds., Boulder, CO, Geological Society of America, Special Paper 388, pp. 19-29. (An additional link for maps referred to in this publication may be found here).

Anderson, D.L. 2005. Self-gravity, self-consistency, and self-organization in geodynamics and geochemistry, in Earth's Deep Mantle: Structure, Composition, and Evolution, Eds. R.D. van der Hilst, J. Bass, J. Matas & J. Trampert, AGU Geophysical Monograph Series 160, pp. 165-186.

Anderson, D.L., 2005, Scoring hotspots: The plume and plate paradigms, in Foulger, G.R., Natland, J.H., Presnall, D.C., and Anderson, D.L., eds., Plates, plumes, and paradigms: Geological Society of America Special Paper 388, p. 31-54

Anderson, Don L. and Natland, J. H., 2005, A brief history of the plume hypothesis and its competitors: Concept and controversy, in Foulger, G.R., Natland, J.H., Presnall, D.C., and Anderson, D.L., eds., Plates, Plumes, & Paradigms, GSA Special Paper 388, pp. 119-145.

Anderson, D. L., editor (with others) 2005, Plates, Plumes & Paradigms: GSA Special Paper 388, 881 pp.

Anderson, D.L., 2006, Speculations on the nature and cause of mantle heterogeneity, Tectonophysics, 416, 7-22. (alternate site for reading)

Thybo, H. and D.L. Anderson, The heterogeneous mantle, Tectonophysics, 416, 1-6, 2006.

Anderson, D.L., 2006, Comment on the recent paper by Busse et al.: "A simple model of high Prandtl and high Rayleigh number convection bounded by thin low-viscosity layers"

Anderson, D.L., Comment on the recent review of Plates, Plumes, and Paradigms, by Paul Tackley, recently published in Science.

Anderson, D.L., 2010, Hawaii, Boundary Layers and Ambient Mantle--Geophysical Constraints, Journal of Petrology, doi: 10.1093/petrology/egq068.

 
Anderson, D. L., What Planet Do You Come From, Anyway? (book), submitted.

Anderson, Don L., Terrestrial Heat Flow and the Thermal History of the Earth, Ann. Reviews, in preparation.

Anderson, D.L., 2004, Plate Tectonics; The General Theory: The Complex Earth is Simpler Than You Think, submitted to Geol. Soc. Am., April 2004; in press September 2006.

Anderson, D.L., and James H. Natland, Plates & Plumes, submitted to Nature, September 2004; rejected.

Anderson, Don L. 2006. New Theory of the Earth, Cambridge University Press, submitted, January 2006; in press.

Lee et al, Continental crust formation at arcs, the “garnet pyroxenite” delamination cycle, and the origin of fertile melting anomalies in the mantle, submitted, Earth and Planetary Science Letters.

Anderson, Don L., 2006, The eclogite engine: Chemical geodynamics as a Galileo thermometer, in The Origins of Melting Anomalies: Plates, Plumes, and Planetary Processes, A GSA Book (in preparation), Editors: Gillian R. Foulger & Donna M. Jurdy.

Beutel, Erin & D.L. Anderson, Ridge-crossing seamount chains; a non-thermal approach, in The Origins of Melting Anomalies: Plates, Plumes, and Planetary Processes, A GSA Book (in preparation), Editors: Gillian R. Foulger & Donna M. Jurdy; accepted.

     
Don L. Anderson and President Clinton on the occasion of Dr. Anderson receiving the
National Medal of Science, April 27, 1999.

Tectonic map of the Central Pacific.
Click here or on the picture above for a full-size version.
Warning: large file (~13MB, 8000 X 5217 pixels) will
open in a separate browser window.

     
Tectonic maps of the Northern and Southern hemispheres, centered on the North and South poles, respectively.
Click on the appropriate picture above for a full-size version.
Warning: large files (~5MB, 4000 X 4431 pixels each) will
open in a separate browser window.
 

 
Born:

• 5 March 1933, Frederick, Maryland

Education:

• B.S. Rensselaer Polytechnic Institute (Geology/Geophysics), 1955
• California Institute of Technology (Geophysics), 1959
• Ph.D. California Institute of Technology (Geophysics/Mathematics),1962
• Honorary D.Sc. Rensselaer Polytechnic Institute, 2000
• Docteur Honoris Causa de L’Universite de Paris, L’Institute de Physique du Globe de Paris, 2005

Professional Experience:

• Geophysicist, Chevron Oil Co., 1955-1956
• Geophysicist, Geophysics Research Directorate, Air Force Cambridge Research Center, 1956-1958
• Geophysicist, Arctic Institute of North America (part time), 1958-1960
• Research Fellow, California Institute of Technology, 1962-1963
• Assistant Professor, California Institute of Technology, 1963-1964
• Associate Professor, California Institute of Technology, 1964-1968
• Director, Seismological Laboratory, California Institute of Technology, 1967-1989
• Professor, California Institute of Technology, 1968-2002
• Eleanor and John R. McMillan Professor of Geophysics, 1989-2002
• Eleanor and John R. McMillan Professor Emeritus of Geophysics, 2002-
• President, American Geophysical Union, 1988-1990
• Past President, American Geophysical Union, 1990-1992
• Green Scholar, Institute of Geophysics and Planetary Physics, University of California, San Diego, 1998
• Cox Visiting Professor, Stanford University, Stanford, 1998

Honors:

• Fellow, American Academy of Arts and Sciences (elected 1972)
• Fellow, National Academy of Sciences (elected 1982)
• Honorary Foreign Fellow, European Union of Geosciences (elected 1985)
• Nominator, MacArthur Foundation Fellows Program, 1986-1987
• Fellow, American Association for the Advancement of Science (elected 1988)
• American Philosophical Society (elected 1990)
• H. Burr Steinbach Visiting Scholar, Woods Hole Oceanographic Institution, 1995
• Distinguished Scientists Lecture Series, Trinity University, 1995
• Guggenheim Fellow, 1998
• Green Scholar, UCSD, 1998
• Tuve Distinguished Visitor, Carnegie, 1998
• Emilio Segre Distinguished Lecturer, 1999
• Gutenberg Lecture, American Geophysical Union, 1999
• Honorary D.Sc. Rensselaer Polytechnic Institute, 2000
• Distinguished Alumni Award, Baltimore Polyechnic Institute, 2001
• Hall of Fame, Rensselaer Polytechnic Institute, 2005

Awards:

• James B. Macelwane Award, American Geophysical Union, 1966
• Apollo Achievement Award, N.A.S.A., 1969
• Newcomb Cleveland Prize, American Association for the Advancement of Science, 1976-1977 (Viking group award)
• NASA Distinguished Scientific Achievement Award, 1977
• Emil Wiechert Medal, German Geophysical Society (Deutsche Geophysikalische Gesellscraft), 1986
• Arthur L. Day Medal, Geological Society of America, 1987
• The Gold Medal of the Royal Astronomical Society, 1988
• Bowie Medal of the American Geophysical Union, 1991
• Crafoord Prize, Royal Swedish Academy of Science, 1998
• National Medal of Science, 1998

Award Committees:

• Committee of Fellows, A.G.U., 1974-1975
• Macelwane Award Committee, A.G.U. (Chairman, 1974-1975)
• Bowie Medal Committee, A.G.U., 1984-1985; Chairman, 1994-1996
• Presidential Young Investigator Awards Panel, N.S.F., 1985
• Nominator, MacArthur Foundation Fellows Program, 1986-1987, 1998-1999
• Penrose Medal Committe, G.S.A., 1989
• Arthur L. Day Award Committee, National Academy of Sciences (Chairman, 1989-1990)
• Arthur L. Day Medal Committee, G.S.A., 1990-1991
• Walter Sullivan Award, AGU, 1992-Present
• Bowie Medal Committee, A.G.U. (Chairman) 1994-1996
• Harry Hess Award Committee, 2002-

Society Memberships:

• American Academy of Arts and Sciences (Fellow)
• American Geophysical Union (Fellow)
• American Philosophical Society
• American Association for the Advancement of Science (Fellow)
• European Union of Geosciences (Honorary Foreign Fellow)
• Geological Society of America (Life Fellow)
• National Academy of Sciences (Fellow)
• Royal Astronomical Society (Fellow)
• Seismological Society of America
• Sigma Xi

Committees:

• American Association for the Advancement of Science
       Board of Reviewing Editors, Science, 1986-present
   
• American Geophysical Union
       Committee of Fellows, 1970-1972
       Macelwane Award Committee (Chairman, 1974-1975)
       Tectonophysics Section, President (1972-1974)
       Bowie Medal Committee, 1984-1985
       Planning Committee (Chairman), 1986-1988
       Executive Committee (President-Elect), 1986-1988, (President), 1988-1990
       Presidential Nomination Committee (Chairman) 1992
       Hess Medal Committee, 2002-
       G-Cubed Advisory Board
   
• Geological Society of America
       Committee on the Penrose Medal, 1989
       Arthur L. Day Medal Committee, 1990-1991
       Long Range Planning Committee, 1990-1991
       Editorial Board, Geology 1993-1996
       Organiser, Penrose Conference, PLUME IV, Iceland, 2003
   
• National Academy of Sciences/National Research Council
       Elected 1982
       Geophysics Nominating Committee, 1983-1987
       NAS Nominating Committee, 1987
       Physics Survey Committee, Earth and Planetary Physics Panel, 1971
       Committee on Geodesy, 1977
       Committee on Seismology (Chairman, 1974-1976)
       Geophysics Research Board, 1974-1976
       U. S. Geodynamics Committee, 1979-1984; 1992-1995
       Space Science Board, 1983-1986
       Geophysics Research Forum (Chairman, 1983-1986)
             (formerly the Geophysics Research Board)
       Board of Earth Sciences, 1983-1985
       OSTP Briefing Committee (Co-Chairman, 1983)
       Earth Sciences Task Group - Mission to Planet Earth (Chairman),
             "Major Directions for Space Sciences, 1995-2015"
             (Steering Committee Member)
       Arthur L. Day Prize Committee (Chairman, 1989-1990)
       Class Membership Committee, 1991
       Class Membership Committee, 2004
   
• National Aeronautics and Space Administration
       Planetary Advisory Subcommittee, 1966-1969
       Apollo Data Archiving Group, 1974
       Lunar Geophysics and Body Properties (Chairman) 1975
       Committee on Earth Sciences, 1976
       Earth Dynamics Working Group, 1976
       Lunar Science Institute Advisory Board
       Viking Science Steering Group
       Viking Seismology Team (Leader)
       Geopotential Research Mission Science Steering Group, 1982-1986
       Geodynamics Workshop, Airlie House, 1983
       Solid Earth Geophysics Working Group, E.S.S.C., 1984-1986
       Earth System Science Committee, Geophysics Panel ("A Comprehensive
            Program for Solid Earth Science Research", organizer and editor), 1986
       Solid Earth Science Planning Conference, Coolfont, Executive Committee, 1989
       Workshop on a Mars Global Seismic Network, 1990
   
• National Science Foundation
       Ad Hoc Advisory Group on Crustal Studies, 1983
       Advisory Committee for Earth Sciences, 1985-1988
       Presidential Young Investigator Award Committee, 1985
       Ad Hoc Advisory Group, Continental Lithosphere 1988
       IRIS Review Panel, 1990
       Advisory Committee for Geosciences, 1994-1997
       Blue Ribbon Panel Review South Pole Redevelopment Project, 1994
   
• Geological Survey
       Earthquake Studies Advisory Panel, 1976-1978
            (Appointed by the Secretary of the Interior)
       Southern California Earthquake Panel (Chairman, 1981-1983)
   
• American Academy of Arts and Sciences
       Membership Committee, 1986-1988, 1998
   
• Carnegie Institution of Washington
       President's Ad Hoc Advisory Committee, 1990

Other:

• Sloan Foundation Fellow, 1964-1967
• Sr. Fulbright-Hays Award, 1975 (Australia)
• Associate Editor, Bulletin, Geological Society of America
• Associate Editor, Tectonophysics
• Associate Editor, Journal of Geophysical Research
• Associate Editor, IUGG Quadrennial Report, Seismology, 1975-1978
• Associate Editor, Physics and Chemistry of the Earth, 1982-
• Associate Editor, Journal of Geodynamics, 1983-
• Editor, Physics of the Earth and Planetary Interiors, 1977-1993
• Purdue University, Dept. of Geosciences, Visiting Committee, 1976, 1988 (Chair), 1993
• Harvard University, Geophysics Search Committee, 1975-1976
• Harvard University, Ad Hoc Committees
• University of Paris, Visiting Committee
• University of Chicago, Dept. of Geophysical Sciences, Visiting Committee, 1983-1986
• Princeton University, Dept. of Geological and Geophysical Sciences Advisory Council, 1984-1987
• Co-founder and member of Board of Directors of IRIS, Incorporated Research Institutions for Seismology, 1984-1987
• Executive Committee, IRIS, 1984-1987
• GSN Review Committee, 2003
• University of Texas at Austin, Institute for Geophysics Visiting Committee, 1984-1988
• Council of Scientific Society Presidents, 1988
• American Institute of Physics, AGU Representative, 1988-1990
• Cosmos Club 1969-1987 (Resigned 1987)
• University of California, IGPP Quinquennial Review Committee, (President's 5-year Review Committee of UCLA, UCSD, UCR, LLNL, LANL facilities)
• Stanford University, Earth Science Advisory Board, 1990-1996 (Chair 1995)
• University of California, Berkeley, Department of Geology and Geophysics, Review Committee, 1990-Present
• Rensselaer Polytechnic Institute, Department of Geology, Visiting Committee, 1990-Present
• Rice University, Visiting Committee, 1991-1996 (Chair 1996)
• Center for High-Pressure Research (CHiPR) Center Advisory Committee (Chairman, 1992) 1991-1996
• National Research Council, U. S. Geodynamics Committee, 1992-1998
• Advisory Committee for Geosciences, National Science Foundation, 1994-1997
• Blue Ribbon Panel Review South Pole Redevelopment Project, National Science Foundation, 1994

Recent Lectureships:

• Condon Lecturer, Oregon State University, 1985
• Foster Hewitt Lecturer, Lehigh University, 1985
• Crough Memorial Lecturer, Purdue University, 1987
• Distinguished Lecturer, Pennsylvania State University, 1987
• AMOCO Visiting Scientist, University of British Columbia, 1988
• Nobel Conference Lecturer, Gustavus Adolphus College, 1988
• Keynote Speaker, European Geophysical Society, Barcelona, Spain, 1989
• Cloos Memorial Scholar, Johns Hopkins University, 1989
• University Center in Georgia Lecture Tour (Georgia Tech, Georgia State University, U. of Georgia), 1991
• Leading Edge in Earth and Planetary Sciences Lectures, U. North Dakota, 1991
• Bowie Medal Lecture, AGU, 1991
• John C. Lindsay Memorial Lecture, Goddard Space Flight Center, 1992
• Keystone Center, Scientist-to-Scientist Colloquium, 1992
• "Capital Science" Lecture, Carnegie Institution of Washington, 1992
• University of Wyoming, 1994
• H. Burr Steinbach Visiting Scholar, Woods Hole, 1995
• Distinguished Scientists Lecture Series, Trinity University, 1995
• Colloquium Speaker, Indiana University Earth Science Dept., 1997
• Colloquium Speaker, University of Southern California Physics Dept., 1997
• Lecturer, University of California - Irvine Physics Dept., 1997
• Wood's Hole, 1998
• M.I.T., 1998
• Stanford, 1998
• U.C.S.D., 1998
• U.C.B., Physics (Segre Lecture), 1999
• Frontiers of Geophysics, A.G.U., 1999
• U.C.S.D., 2001
• Johns Hopkins University, 2001