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  1. No Access

    Article

    Book reviews

    Kacper R. Rybicki, Brian J. Mitchell, Louise H. Kellogg in pure and applied geophysics (1990)

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    Article

    Book reviews

    Yukio Fu**awa, A. V. Koloskov, Gerardo G. Tango in pure and applied geophysics (1991)

  3. No Access

    Article

    Book reviews

    Andrea Borgia, Douglas R. Schmitt, Manfred Koch in pure and applied geophysics (1992)

  4. No Access

    Article

    Three-dimensional stress-relief displacements from blind-hole drilling: a parametric description

    Optically-based interferometric techniques are finding increased application to the quantitative determination of near surface stress states. Unlike the standardized strain-gage method of hole drilling, howeve...

    Ismael Rumzan, Douglas R. Schmitt in Experimental Mechanics (2003)

  5. No Access

    Article

    The Transition Between the Scale Domains of Ray and Effective Medium Theory and Anisotropy: Numerical Models

    The anisotropy of a periodically layered isotropic medium is numerically modeled in order to study the effect of the scale of heterogeneity on seismic observations. An important motivation is to delineate the ...

    Yinbin Liu, Douglas R. Schmitt in pure and applied geophysics (2006)

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    Article

    An integrative geothermal resource assessment study for the siliciclastic Granite Wash Unit, northwestern Alberta (Canada)

    This study explores the siliciclastic Granite Wash Unit in northwestern Alberta as a potential geothermal reservoir. The approach covers regional 3D structural geological modelling of a 90 km × 70 km area base...

    Simon N. Weides, Inga S. Moeck, Douglas R. Schmitt in Environmental Earth Sciences (2014)

  7. No Access

    Article

    Elastic Anisotropy of a Metamorphic Rock Sample of the Canadian Shield in Northeastern Alberta

    The presence of fractures and textures cause metamorphic rock masses to be seismically anisotropic. Neglect of this anisotropy in the processing of field seismic data causes problems in the final reflection im...

    Judith Chan, Douglas R. Schmitt in Rock Mechanics and Rock Engineering (2015)

  8. Article

    Open Access

    Initial seismic observations from a deep borehole drilled into the Canadian Shield in northeast Alberta

    The availability of a deep borehole in northeastern Alberta provides an unprecedented opportunity to study the in situ metamorphic craton rocks. This borehole reaches a depth of 2.4 km, with 1.8 km in the cry...

    Judith Chan, Douglas R. Schmitt in International Journal of Earth Sciences (2015)

  9. No Access

    Article

    Extreme hydrothermal conditions at an active plate-bounding fault

    Extreme temperatures and fluid pressures are measured, and their causes modelled, in a borehole into the Alpine Fault, where an earthquake rupture is expected within the next few decades.

    Rupert Sutherland, John Townend, Virginia Toy, Phaedra Upton, Jamie Coussens in Nature (2017)

  10. No Access

    Article

    Effective Stress Coefficient for Seismic Velocities in Carbonate Rocks: Effects of Pore Characteristics and Fluid Types

    The concept of effective stress is key for understanding the dependence of rock elastic and compaction behaviors on stress and pore-fluid pressure. Previous studies on the concept largely used data acquired on...

    Gautier Njiekak, Douglas R. Schmitt in Pure and Applied Geophysics (2019)

  11. Article

    Correction to: Effective Stress Coefficient for Seismic Velocities in Carbonate Rocks: Effects of Pore Characteristics and Fluid Types

    Due to an unfortunate oversight the sentence “Also, the fact that some carbonates, such as siliciclastic rocks, may be less sensitive to compaction adds another level of complexity.” is not given correctly.

    Gautier Njiekak, Douglas R. Schmitt in Pure and Applied Geophysics (2019)

  12. Article

    Open Access

    Evaluation of the geothermal potential of the western Snake River Plain based on a deep corehole on the Mountain Home AFB near Mountain Home, Idaho

    A geothermal exploration corehole was drilled to a total depth of 1821.5 m on the Mountain Home Air Force Base near Mountain Home, Idaho. The corehole was used to collect an unusually large amount of data, inc...

    Thomas E. Lachmar, Thomas G. Freeman, James A. Kessler in Geothermal Energy (2019)

  13. Article

    Open Access

    Empirical rock physics relationships on carbonate dry-frame elastic properties

    Laboratory tests were conducted to analyze the ultrasonic velocity response to the pressure change in dry carbonate rocks from the Weyburn oilfield, Canada. Twenty-four samples are from seven wells with helium...

    Zi-Zhen Wang, Gautier Njiekak, Douglas R. Schmitt, Rui-He Wang in Petroleum Science (2021)