Hartmut A. W. Spetzler

Professor of Geological Sciences
Fellow, Cooperative Institute for Research in Environmental Sciences.
Fellow, Energy and Minerals Applied Research Center

Ph.D., 1969, California Institute of Technology

Research Interests:
Experimental investigation of brittle and ductile properties of Earth materials as they pertain to continental drift, Earthquakes and toxic waste disposal.

Current Research Projects: Experimental determination of the equation of state of mantle minerals under high pressure and temperature. The effect of contamination and fracture geometry on fluid flow in saturated and undersaturated porous media.

Courses Offered:

 

Introduction to the Physics of the Solid Earth

Geophysics

Problem Solving in Geophysics

Graduate seminars:

Porosity and Permeability Measurements

Seismic Velocity and Attenuation

Properties of Earth materials

Recent Publications:

• Papers related to the development of GigaHertz Ultrasonic Interferometry.
• A New Ultrasonic Interferometer for the Determination of Equation of State Parameters of Sub-Millimeter Single Crystals. PAGEOPH, Vol. 141, No. 2/3/4, 341-377, 1993. H.A. Spetzler, G. Chen, S. Whitehead, and I.C. Getting.
• Performance of the Complete Travel-time Equation of State at Simultaneous High Pressure and Temperature, PAGEOPH, Vol. 141, No. 2/3/4, 379-392, 1993. H.A. Spetzler and A. Yoneda.
• Characterizing Sub-millimeter Crystals with a Wide-band GHz Interferometer, Proc., Ultrasonics International 1993, 363-366, 1993. G. Chen, H.A. Spetzler, S. Whitehead, and I.C. Getting.
• Implication of the Complete Travel Time Equation of State for a New Pressure Scale, Proc. AIRAPT/APS High Pressure and Technology Conference, 1609-1612, June 1993, Colorado Springs, Colorado. A. Yoneda, H.A. Spetzler, and I.C. Getting.
• Temperature Fluctuation and Thermodynamic Properties in Earth's Lower Mantle: An Application of the Complete Equation of State. Earth Planet. Sci. Letters, 126, 369-377, 1994. A. Yoneda and H. Spetzler.
• Selected Elastic Moduli and Their Temperature Derivatives for Olivine and Garnet with Different Mg/(Mg+Fe) Contents: Results from GHz Ultrasonic Interferometry. Geophys. Res. Lett., 23(1), 1996, 5-8, G. Chen, H.A. Spetzler, I.C. Getting, and A. Yoneda.
• Cross Temperature and Pressure Derivatives of Selected Elastic Moduli for Olivine from GHz Ultrasonic Interferometry. J. Geophys. Res., 101(B11), 25161-15171, 1996, G. Chen, A. Yoneda, I.C. Getting and H.A. Spetzler.
• Ultrasonic Measurements in a Diamond Anvil Cell. Phys. Earth Planet Interiors, 98(1-2), 92-99, 1996, H. Spetzler, A. Shen, G. Chen, G. Herrmannsdoerfer, H. Schulze and R. Weigel,
• 
  Shear and Compressional Mode Measurements with GHz Ultrasonic Interferometry and Velocity-Composition Systematics for the Pyrope-Almandine Solid Solution Series. Phys. Earth Planet Interiors, 99, 273-287, 1997. G. Chen, R. Miletich, K. Mueller, H. Spetzler.
• Giga-Hertz Ultrasonic Interferometry in a Diamond-Anvil Cell: P-wave Velocities in Periclase to 4.4 GPa and 207 C. Proc. Int'l Conf. High Pressure, Jan. 1996, Hawaii, M. Manghnani, editor, 1998, A.H. Shen, H.-J. Reichmann, G. Chen, R.J. Angel, W.A. Bassett and H.A. Spetzler.
• Ultrasonic Interferometry and X-ray Measurements on MgO in a new Diamond Anvil Cell. American Minerologist, in press. H. J. Reichmann1, R. J. Angel, H. Spetzler and W.A. Bassett
• Papers concerning water flow.
• Absorption of Strain Waves in Porous Media at Seismic Frequencies. PAGEOPH, 147(1), 25-55, 1996. T.L. Chelidze, H.A. Spetzler and G.A. Sobolev.
• A New Wideband (1 mHz to 100 Hz) Seismic Spectrometer. Rev. Sci. Instrum., 67(1), 215-221, 1996, R.H. Cherry, H.A. Spetzler, and J. Paffenholz.
• Seismic Attenuation in Artificial Glass Cracks: Physical and Physicochemical Effects of Fluids, Geophys. Res. Lett., 23, 2053-2056, 1996. R. Moerig, W.F. Waite, O.S. Boyd, I.C. Getting, and H.A. Spetzler.
• Effects of Surface Contamination on Fluid Flow, Geophys. Res. Lett., 24, 755-758, 1997. R. Moerig, W.F. Waite, H.A. Spetzler.
• Seismic Attenuation in a Partially Saturated, Artificial Crack Due to Restricted Contact Line Motion, Geophys. Res. Lett., Vol. 24, No 24, 3309-3312, Dec.1997. W.F. Waite, R. Moerig, H. A. Spetzler.
• The Effect of Surface Geometry on Fracture Permeability: A Case Study Using a Sinusoidal Fracture, in press Geophys. Res. Lett., Vol. 25, No. 6, 813-816, March 1998. M.E. Waite, S. Ge, H. Spetzler, D. Bahr.
• A New Conceptual Mmodel for Fluid Flow in Discreet Fractures: an Experimental and Numerical Study, in review in J. of Geophys. Res., 1998. M.E. Waite, S. Ge, H. Spetzler.
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Home page: http://spot.colorado.edu/~spetzler
Email address: Spetzler@Colorado.EDU

Phone: (303)492-6715/-6629

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