Frank Dale Morgan

Learn More
Frequency-Dependent Streaming Potentials Philip M. Reppert,∗,1 Frank Dale Morgan, David P. Lesmes,† and Laurence Jouniaux‡ ∗Earth Resources Laboratory, Department of Earth Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, E34-356a, 42 Carleton Street, Cambridge, Massachusetts 02142; †Department of Geology and Geophysics, Boston(More)
functions. Department of Chemistry Report, Univ. of Alberta, Edmonton, Alberta, Canada, 1971 6. McLean, A. D., Chandler, G. S.: J. Chem. Phys. 72, 5639 (1980) 7. Andzelm, J., Huzinaga, S., Klobukowski, M., Radzio, E., Sakai, Y., Tatewaki, H.: Gaussian Basis Sets For Molecular Calculations. Amsterdam: Elsevier 1984 8. Andersen, G. A., Forgaard, E R.,(More)
This paper presents a theory for frequency-dependent electroosmosis. It is shown that for a closed capillary the electroosmosis frequency-dependent ratio of DeltaV/DeltaP is constant with increasing frequency until inertial effects become prevalent, at which time DeltaV/DeltaP starts to decrease with increasing frequency. The frequency response of the(More)
Hydrogeophysical methods are presented that support the siting and monitoring of aquifer storage and recovery (ASR) systems. These methods are presented as numerical simulations in the context of a proposed ASR experiment in Kuwait, although the techniques are applicable to numerous ASR projects. Bulk geophysical properties are calculated directly from ASR(More)
Ground penetrating radar (GPR) signatures, such as reflection moveout, are sensitive to the presence of azimuthal anisotropy. Azimuthal anisotropy can occur as an intrinsic property of the medium and/or due to the presence of fractures. In such cases, the GPR normal moveout (NMO) velocity, along different orientations of common-midpoint (CMP) gathers,(More)
When a rock sample is pressed by a force, the pressure on the crystal lattice generates an electrical field around the quart grains due to the piezoelectric effect. If a rock is saturated by conductive fluid, the relative motion between the pore fluid and the matrix solid generates an electromagnetic field due to seismoelectric conversion, and the(More)
We investigate the use of non-linear constraints for geophysical inverse problems, with specific examples applied to source inversion of self-potential data. Typical regularization methods often produce smooth solutions by introducing a quadratic term in the objective function that minimizes the L2 norm of a low-order differential operator applied to the(More)
  • 1