Bio


My students and I are using quantitative field data and principles of structural geology, combined with laboratory and computer modeling, to address fundamental questions about processes of faulting, fracturing and rock deformation. Geologic structures play important roles in attempts to utilize nature's gifts wisely and to mitigate natural hazards. Our research aims to understand how faults and fractures affect the flow of magma, groundwater, and hydrocarbons, and the crucial role fractures play in earthquake generation and volcanic eruption.

Academic Appointments


  • Professor, Geological Sciences
  • Professor (By courtesy), Geophysics
  • Professor (By courtesy), Civil and Environmental Engineering

Administrative Appointments


  • Visiting Scholar, University of Washington (2010 - 2010)
  • Visiting Professor, The University of Edinburgh, Scotland (2000 - 2000)
  • Professor by Courtesy, Civil and Env. Eng., Stanford University (1998 - Present)
  • Professor, Geological & Environmental Sciences, Stanford University (1993 - Present)
  • Visiting Fellow and Visiting Professor, Princeton University (1991 - 1992)
  • Professor by Courtesy, Geophysics, Stanford University (1987 - Present)
  • Professor, Applied Earth Sciences and Geology, Stanford University (1986 - 1993)
  • Associate Professor, Geology, Stanford University (1984 - 1986)
  • Associate Professor, Applied Earth Sciences, Stanford University (1983 - 1986)
  • Visiting Scientist, Earth and Planetary Sciences, M.I.T (1980 - 1981)
  • Consulting Associate Professor, Geology, Stanford University (1976 - 1979)
  • Consulting Assistant Professor, Geology, Stanford University (1975 - 1976)
  • Geophysicist and Project Chief, U. S. Geological Survey Menlo Park CA (1974 - 1983)
  • Assistant Professor, Geological Sciences, University of Rochester (1970 - 1974)
  • Research Associate, Geology, Stanford University (1969 - 1970)

Honors & Awards


  • Best Paper of the Year Award, Structural Geology and Tectonics Division, Geological Society of America (2007)
  • Fellow, American Geophysical Union (2007 - Present)
  • Fellow, Geological Society of America (1996 - Present)
  • Woodford-Eckis Lectureship, Pomona College (1996)
  • Barney and Estelle Morris Professor of Earth Sciences, Stanford University (1993 - Present)
  • Senior Hess Fellow, Princeton University (1992)
  • Centennial Author, Geological Society of America Bulletin (1988)
  • Outstanding Teacher Award, School of Earth Sciences, Stanford University (1987 - 1988)
  • Applied Research Award, U. S. National Committee on Rock Mechanics (1987)
  • Post-doctoral Fellowship, National Science Foundation (1968 - 1969)
  • Graduate Fellowship, National Science Foundation (1965 - 1968)
  • R.W. Strehle Memorial Award in Geology, Pomona College (1965)

Boards, Advisory Committees, Professional Organizations


  • Member, School of Earth Sciences, Dean's Earth Sciences Council, Stanford University (1992 - 2000)
  • Member, Editorial Advisory Board, Journal of Structural Geology (1993 - Present)
  • Representative, GES Dept., GIS Laboratory Coordinating Committee, Stanford University (1994 - 2000)
  • Fellow, Geological Society of America (1996 - Present)
  • Member, Dean of Research, Faculty Advisory Group on Indirect Costs, Stanford University (1996 - 2000)
  • Member, Committee on the Arthur L. Day Medal, Geological Society of America (1997 - 1997)
  • Invited Speaker, Univ. of California, Berkeley, Neville Cook Symposium, Oct. (1998 - 1998)
  • Invited Speaker, Dept. of Geology and Geophysics, University of Edinburgh, Scotland, September (1999 - 1999)
  • Invited Speaker, Norsk Hydro (Bergen, Norway), September (1999 - 1999)
  • Invited Speaker, Anadarko (Houston), August (1999 - 1999)
  • Member, School of Earth Sciences Computer Committee, Stanford University (1999 - 2009)
  • Member, Academic Council Committee on Libraries (C-LIB), Stanford University (2000 - 2002)
  • Invited Speaker, Chevron Petroleum Corp., San Ramon, Dec. (2000 - 2000)
  • Invited Speaker, Geological Society of America Annual Meeting, Hot Topics Session: Debate on Kinematics vs. Mechanics, Nov. (2000 - 2000)
  • Invited Speaker, Repsol/YPF/Apex Corp., Denver, October; Shell, Amsterdam, Holland, September; Midland Valley Corp., Glasgow, Scotland, August; Dept. of Petroleum Engineering, Heriot-Watt University, Scotland, July ; Dept. of Geology and Geophysics, University of Edinburgh, Scotland, April & June (2000 - 2000)
  • Invited Keynote Speaker, Geological Society of London Conference: Mechanics of Jointing in the Crust, England, July (2001 - 2001)
  • Graduate Student Coordinator, GES Department, Stanford University (2001 - 2004)
  • Member, GES Department, Undergraduate Program Committee, Stanford University (2001 - 2002)
  • Chair, Academic Council Committee on Libraries (C-LIB), Stanford University (2002 - 2003)
  • Chair, GES Department Search Committee on Surface Processes, Stanford University (2002 - 2004)
  • Co-opted Member, Academic Council Committee on Computing (C-ACIS), Stanford University (2002 - 2003)
  • Invited Speaker, U.S. Geological Survey, Menlo Park, CA; Frontiers of Geophysics, Geophysics Dept., Stanford University (2002 - 2002)
  • Organizer & Chair, NSF Workshop on Structural Geology and Tectonics, Denver, CO (2002 - 2002)
  • Invited Speaker, Petroleum Engineering Department, Stanford University; Sandia National Laboratory, Albuquerque, New Mexico; California Institute of Technology, Seismological Laboratory, Pasadena, CA (2002 - 2002)
  • Invited Speaker, Harvard University, Dept. of Earth & Planetary Sciences, Cambridge, MA; University of Massachusetts, Dept. of Geosciences, Amherst, MA ; Yale University, Dana Club Colloquium, Dept. of Geology & Geophysics, New Haven, CT; Princeton University, Dept. of Geosciences, Princeton, NJ (2003 - 2003)
  • Invited Speaker, DOE Basic Energy Sciences Workshop on Compaction Localization, Washington, D.C.; DOE Geosciences Research Program Symposium: Flow and Transport from Pore to Reservoir Scales, Washington, D.C. (2004 - 2004)
  • Invited Speaker, Geological Society of America Annual Meeting, Pardee Symposium, Research opportunities, new frontiers, and the questioning of paradigms in sturctural geology and tectonics, Salt Lake City, Utah (2005 - 2005)
  • Invited Speaker, American Association of Petroleum Geologists Annual Meeting, Reservoir Deformation Research Group, Calgary, Canada. (2005 - 2005)
  • Invited Speaker, ExxonMobil Upstream Research Lab, Workshop on Mechanics in Structural Geology, Houston TX (2005 - 2005)
  • Member, Geophysics Search Committee on Computational Seismology/Imaging/Geodynamics (2005 - 2006)
  • Invited Speaker, IGEOSS Symposium on Software Development for Industry, Montpellier, France (2006 - 2006)
  • Session Organizer, Fracturing and Faulting During Folding of Sedimentary Strata, American Geophysical Union Annual Meeting, San Francisco, CA (2006 - 2006)
  • Invited Speaker, University of Texas, Department of Petroleum and Geosystems Engineering, Austin, TX (2006 - 2006)
  • Member, Introduction to the Humanities (IHUM) Governance Board, Stanford University (2006 - 2009)
  • Fellow, American Geophysical Union (2007 - Present)
  • Alternate Representative, University Senate, Stanford University (2007 - 2009)
  • Member, School Search Committee for Computational Geosciences, Stanford University (2007 - 2008)
  • Member, School Undergraduate Curriculum Committee, Stanford University (2007 - 2008)
  • Invited Speaker, Conference on FEM in Reservoir Studies, ConocoPhillips, Houston, TX; IGEOSS Symposium on Software Development for Industry, Montpellier, France (2007 - 2007)
  • Invited Speaker, Geological Society of America Annual Meeting, Bridging the Gap Between Kinematics and Mechanics, Denver, CO; Stanford University, Department of Energy Resources Engineering (2007 - 2007)
  • Session Co-Organizer, Deformation of Sediment and Sedimentary Rock, American Geophysical Union Annual Meeting, San Francisco, CA (2007 - 2007)
  • Invited Speaker, U. C. Santa Cruz, Institute of Geophysics and Planetary Physics, Santa Cruz, CA (2008 - 2008)
  • Co-organizer, Geological Society of America Topical Session, Mathematical Models of Folding: Recent Advances, Applications and Future Directions, Houston, TX (2008 - 2008)
  • Invited Speaker, AAPG/SPE/SEG Hedberg Research Conference, The Geologic Occurrence and Hydraulic Significance of Fractures in Reservoirs, Casper, WY (2008 - 2008)
  • Invited Speaker, DOE-BES Conference, Basic Research Relevant to Geological CO2 Sequestration, Gaithersburg, MD (2008 - 2008)
  • Invited Speaker, U.S. Geological Survey, Earthquake Seminar Series, Earthquake Rupture Velocity and Shear Stress Drop, Menlo Park, CA (2008 - 2008)
  • Invited Speaker, University of Washington, Earth and Space Sciences Department Seminar, Seattle, WA; University of Washington, Geophysics Seminar, Seattle, WA (2010 - 2010)
  • Chair, GES Dept. Succession Committee, Stanford University (2012 - Present)
  • Graduate Student Coordinator, GES Dept., Stanford Univesity (2012 - Present)
  • Director of Graduate Studies, GES Dept., Stanford University (2014 - Present)

Professional Education


  • Ph.D., Stanford University, Geology (1969)
  • D.I.C., Imperial College, University of London, Geology (1969)
  • B.A., Pomona College, Geology (1965)

Current Research and Scholarly Interests


Research
Our research aims to understand how faults and fractures initiate and evolve in Earth's brittle crust, how they affect the flow of molten rock, groundwater, and hydrocarbons, and the crucial role faults and fractures play in earthquake generation, folding of sedimentary strata, and volcanic eruption. My students and I use quantitative field data and the principles of structural geology, combined with computer modeling based on continuum and fracture mechanics, to address fundamental questions about the processes of faulting, fracturing, and folding. Our understanding of the geologic structures created by these processes plays an important role in managing resource recovery and in the mitigation of natural hazards. To enhance the precision of our field data, we use the Global Positioning System (GPS) and Airborne Laser Swath Mapping (ALSM).

Teaching
I teach the undergraduate course, Fundamentals of Structural Geology and I am writing a new textbook for undergraduates called A First Course in Structural Geology. For graduate students I teach Structural Geology and Rock Mechanics as well as a course in Rock Fracture Mechanics with applications to solid earth geophysics, structural geology, and tectonics. Each quarter I teach a graduate seminar on the Literature of Structural Geology and recent research developments. Every week I meet with each of my graduate students and postdocs for an hour-long teaching and mentoring session in which we review their progress and I guide them toward future research goals.

Professional Activities
Member, editorial advisory board, Journal of Structural Geology; developer of Poly3D, a boundary element computer program to analyze faults and fractures; co-founder of IGEOSS, a French company developing software for the hydrocarbon industry; author and producer of A Complete Suite, a musical allegory exploring uses of continuum mechanics in structural geology; editor, New Departures in Structural Geology and Tectonics, an NSF-sponsored white paper on research opportunities; co-author of the textbook Fundamentals of Structural Geology, published by Cambridge University Press; fellow of the Geological Society of America and of the American Geophysical Union

2014-15 Courses


Journal Articles


  • The influence of fault geometry on small strike-slip fault mechanics Journal of Structural Geology Ritz, E., Pollard, D. D., Ferris, M. 2015; 73: 1-15
  • iBem3D, a three-dimensional iterative boundary element method using angular dislocations for modeling geologic structures COMPUTERS & GEOSCIENCES Maerten, F., Maerten, L., Pollard, D. D. 2014; 72: 1-17
  • Eshelby's solution for ellipsoidal inhomogeneous inclusions with applications to compaction bands JOURNAL OF STRUCTURAL GEOLOGY Meng, C., Pollard, D. D. 2014; 67: 1-19
  • Evaluation of transtension and transpression within contractional fault steps: Comparing kinematic and mechanical models to field data JOURNAL OF STRUCTURAL GEOLOGY Nevitt, J. M., Pollard, D. D., Warren, J. M. 2014; 60: 55-69
  • Geometry of crustal faults: Identification from seismicity and implications for slip and stress transfer models JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Kaven, J. O., Pollard, D. D. 2013; 118 (9): 5058-5070

    View details for DOI 10.1002/jgrb.50356

    View details for Web of Science ID 000325553000026

  • Mechanics of nonplanar faults at extensional steps with application to the 1992 M 7.3 Landers, California, earthquake JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Madden, E. H., Maerten, F., Pollard, D. D. 2013; 118 (6): 3249-3263

    View details for DOI 10.1002/jgrb.50237

    View details for Web of Science ID 000330118600036

  • Analytical solutions and numerical tests of elastic and failure behaviors of close-packed lattice for brittle rocks and crystals JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Liu, C., Pollard, D. D., Shi, B. 2013; 118 (1): 71-82
  • Modeling mixed-mode fracture propagation in isotropic elastic three dimensional solid INTERNATIONAL JOURNAL OF FRACTURE Meng, C., Maerten, F., Pollard, D. D. 2013; 179 (1-2): 45-57
  • Pitfalls among the promises of mechanics-based restoration: Addressing implications of unphysical boundary conditions JOURNAL OF STRUCTURAL GEOLOGY Lovely, P., Flodin, E., Guzofski, C., Maerten, F., Pollard, D. D. 2012; 41: 47-63
  • Reverse drag revisited: Why footwall deformation may be the key to inferring listric fault geometry JOURNAL OF STRUCTURAL GEOLOGY Resor, P. G., Pollard, D. D. 2012; 41: 98-109
  • Integrating complementarity into the 2D displacement discontinuity boundary element method to model faults and fractures with frictional contact properties COMPUTERS & GEOSCIENCES Ritz, E., Mutlu, O., Pollard, D. D. 2012; 45: 304-312
  • Stick, slip, and opening of wavy frictional faults: A numerical approach in two dimensions JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Ritz, E., Pollard, D. D. 2012; 117
  • Evaluation of the Eshelby solution for the ellipsoidal inclusion and heterogeneity COMPUTERS & GEOSCIENCES Meng, C., Heltsley, W., Pollard, D. D. 2012; 40: 40-48
  • Integration of Surface Slip and Aftershocks to Constrain the 3D Structure of Faults Involved in the M 7.3 Landers Earthquake, Southern California BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA Madden, E. H., Pollard, D. D. 2012; 102 (1): 321-342

    View details for DOI 10.1785/0120110073

    View details for Web of Science ID 000300614700023

  • Off-fault tensile cracks: A link between geological fault observations, lab experiments, and dynamic rupture models JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Ngo, D., Huang, Y., Rosakis, A., Griffith, W. A., Pollard, D. 2012; 117
  • Mechanical analysis of fault slip data: Implications for paleostress analysis JOURNAL OF STRUCTURAL GEOLOGY Kaven, J. O., Maerten, F., Pollard, D. D. 2011; 33 (2): 78-91
  • Closure of circular arc cracks under general loading: effects on stress intensity factors INTERNATIONAL JOURNAL OF FRACTURE Ritz, E., Pollard, D. D. 2011; 167 (1): 3-14
  • Fold geometry at Sheep Mountain anticline, Wyoming, constructed using airborne laser swath mapping data, outcrop-scale geologic mapping, and numerical interpolation JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Lovely, P., Zahasky, C., Pollard, D. D. 2010; 115
  • Fissure formation and subsurface subsidence in a coalbed fire INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES Ide, T. S., Pollard, D., Orr, F. M. 2010; 47 (1): 81-93
  • Structural geometry of Raplee Ridge monocline and thrust fault imaged using inverse Boundary Element Modeling and ALSM data JOURNAL OF STRUCTURAL GEOLOGY Hilley, G. E., Mynatt, I., Pollard, D. D. 2010; 32 (1): 45-58
  • Fracture initiation, development, and reactivation in folded sedimentary rocks at Raplee Ridge, UT JOURNAL OF STRUCTURAL GEOLOGY Mynatt, I., Seyum, S., Pollard, D. D. 2009; 31 (10): 1100-1113
  • Influence of Outcrop Scale Fractures on the Effective Stiffness of Fault Damage Zone Rocks PURE AND APPLIED GEOPHYSICS Griffith, W. A., Sanz, P. F., Pollard, D. D. 2009; 166 (10-11): 1595-1627
  • Dynamic rupture experiments elucidate tensile crack development during propagating earthquake ruptures GEOLOGY Griffith, W. A., Rosakis, A., Pollard, D. D., Ko, C. W. 2009; 37 (9): 795-798

    View details for DOI 10.1130/G30064A.1

    View details for Web of Science ID 000269812000010

  • Regions of Reduced Static Stress Drop near Fault Tips for Large Strike-Slip Earthquakes BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA Lovely, P. J., Pollard, D. D., Mutlu, O. 2009; 99 (3): 1691-1704

    View details for DOI 10.1785/0120080358

    View details for Web of Science ID 000266731200011

  • Static stress drop associated with brittle slip events on exhumed faults JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Griffith, W. A., Di Toro, G., Pennacchioni, G., Pollard, D. D., Nielsen, S. 2009; 114
  • Constraining Surface Interpolations Using Elastic Plate Bending Solutions with Applications to Geologic Folding MATHEMATICAL GEOSCIENCES Kaven, J. O., Mazzeo, R., Pollard, D. D. 2009; 41 (1): 1-14
  • On the patterns of wing cracks along an outcrop scale flaw: A numerical modeling approach using complementarity JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Mutlu, O., Pollard, D. D. 2008; 113 (B6)
  • Fracture permeability created by perturbed stress fields around active faults in a fractured basement reservoir AAPG BULLETIN Tamagawa, T., Pollard, D. D. 2008; 92 (6): 743-764
  • Thin pseudotachylytes in faults of the Mt. Abbot quadrangle, Sierra Nevada: Physical constraints for small seismic slip events JOURNAL OF STRUCTURAL GEOLOGY Griffith, W. A., Di Toro, G., Pennacchioni, G., Pollard, D. D. 2008; 30 (9): 1086-1094
  • Mechanical models of fracture reactivation and slip on bedding surfaces during folding of the asymmetric anticline at Sheep Mountain, Wyoming JOURNAL OF STRUCTURAL GEOLOGY Sanz, P. F., Pollard, D. D., Allwardt, P. F., Borja, R. I. 2008; 30 (9): 1177-1191
  • Curvature and fracturing based on global positioning system data collected at Sheep Mountain anticline, Wyoming GEOSPHERE Allwardt, P. F., Bellahsen, N., Pollard, D. D. 2007; 3 (6): 408-421

    View details for DOI 10.1130/GES00088.1

    View details for Web of Science ID 000251577200002

  • Inferring fault characteristics using fold geometry constrained by airborne laser swath mapping at Raplee Ridge, Utah GEOPHYSICAL RESEARCH LETTERS Mynatt, I., Hilley, G. E., Pollard, D. D. 2007; 34 (16)
  • Mechanical aspects of thrust faulting driven by far-field compression and their implications for fold geometry ACTA GEOTECHNICA Sanz, P. F., Borja, R. I., Pollard, D. D. 2007; 2 (1): 17-31
  • Mechanical and stratigraphic constraints on the evolution of faulting at Elk Hills, California AAPG BULLETIN Fiore, P. E., Pollard, D. D., Currin, W. R., Miner, D. M. 2007; 91 (3): 321-341
  • Characterization of strike-slip fault - Splay relationships in sandstone JOURNAL OF STRUCTURAL GEOLOGY de Joussineau, G., Mutlu, O., Aydin, A., Pollard, D. D. 2007; 29 (11): 1831-1842
  • Using differential geometry to describe 3-D folds JOURNAL OF STRUCTURAL GEOLOGY Mynatt, I., Bergbauer, S., Pollard, D. D. 2007; 29 (7): 1256-1266
  • Flow and transport effects of compaction bands in sandstone at scales relevant to aquifer and reservoir management WATER RESOURCES RESEARCH Sternlof, K. R., Karimi-Fard, M., Pollard, D. D., Durlofsky, L. J. 2006; 42 (7)
  • From spatial variation of fracture patterns to fold kinematics: A geomechanical approach GEOPHYSICAL RESEARCH LETTERS Bellahsen, N., Fiore, P. E., Pollard, D. D. 2006; 33 (2)
  • The role of fractures in the structural interpretation of Sheep Mountain Anticline, Wyoming JOURNAL OF STRUCTURAL GEOLOGY Bellahsen, N., Fiore, P., Pollard, D. D. 2006; 28 (5): 850-867
  • Anticrack inclusion model for compaction bands in sandstone JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Sternlof, K. R., Rudnicki, J. W., Pollard, D. D. 2005; 110 (B11)
  • Inverting for slip on three-dimensional fault surfaces using angular dislocations BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA Maerten, F., Resor, P., Pollard, D., Maerten, L. 2005; 95 (5): 1654-1665

    View details for DOI 10.1785/0120030181

    View details for Web of Science ID 000232868000006

  • Integrating high-precision aftershock locations and geodetic observations to model coseismic deformation associated with the 1995 Kozani-Grevena earthquake, Greece JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Resor, P. G., Pollard, D. D., Wright, T. J., Beroza, G. C. 2005; 110 (B9)
  • Permeability effects of deformation band arrays in sandstone AAPG BULLETIN Sternlof, K. R., Chapin, J. R., Pollard, D. D., Durlofsky, L. J. 2004; 88 (9): 1315-1329
  • Paleo-fluid flow and deformation in the Aztec Sandstone at the Valley of Fire, Nevada - Evidence for the coupling of hydrogeologic, diagenetic, and tectonic processes GEOLOGICAL SOCIETY OF AMERICA BULLETIN Eichhubl, P., Taylor, W. L., Pollard, D. D., Aydin, A. 2004; 116 (9-10): 1120-1136

    View details for DOI 10.1130/B25446.1

    View details for Web of Science ID 000223709600006

  • A new conceptual fold-fracture model including prefolding joints, based on the Emigrant Gap anticline, Wyoming GEOLOGICAL SOCIETY OF AMERICA BULLETIN Bergbauer, S., Pollard, D. D. 2004; 116 (3-4): 294-307

    View details for DOI 10.1130/B25225.1

    View details for Web of Science ID 000189291600003

  • Effective permeability in sandstone containing deformation band arrays American Association of Petroleum Geologists Bulletin Sterlof, K., Chapin, J., Pollard, D. D., Durlofsky, L. J. 2004; 88: 1315-1329
  • How to calculate normal curvatures of sampled geological surfaces JOURNAL OF STRUCTURAL GEOLOGY Bergbauer, S., Pollard, D. D. 2003; 25 (2): 277-289
  • Imaging 3-D fracture networks around boreholes AAPG BULLETIN Wu, H. Q., Pollard, D. D. 2002; 86 (4): 593-604
  • Effects of local stress perturbation on secondary fault development JOURNAL OF STRUCTURAL GEOLOGY Maerten, L., Gillespie, P., Pollard, D. D. 2002; 24 (1): 145-153
  • Considering the third dimension in stress-triggering of aftershocks: 1993 Klamath Falls, Oregon, earthquake sequence GEOPHYSICAL RESEARCH LETTERS Crider, J. G., Schaff, D. P., Pollard, D. D., Beroza, G. C. 2001; 28 (14): 2739-2742
  • Integrating 3-D seismic data, field analogs, and mechanical models in the analysis of segmented normal faults in the Wytch Farm oil field, southern England, United Kingdom AAPG BULLETIN Kattenhorn, S. A., Pollard, D. D. 2001; 85 (7): 1183-1210
  • Digital mapping of three-dimensional structures of the Chimney Rock fault system, central Utah JOURNAL OF STRUCTURAL GEOLOGY Maerten, L., Pollard, D. D., Maerten, F. 2001; 23 (4): 585-592
  • Getting more for less: The unusual efficiency of fluid flow in fractures GEOPHYSICAL RESEARCH LETTERS Bai, T. X., Pollard, D. D. 2001; 28 (1): 65-68
  • Closely spaced fractures in layered rocks: initiation mechanism and propagation kinematics JOURNAL OF STRUCTURAL GEOLOGY Bai, T. X., Pollard, D. D. 2000; 22 (10): 1409-1425
  • Strain and stress: Discussion JOURNAL OF STRUCTURAL GEOLOGY Pollard, D. D. 2000; 22 (9): 1359-1367
  • Estimation of in situ permeability of deformation bands in porous sandstone, Valley of Fire, Nevada WATER RESOURCES RESEARCH Taylor, W. L., Pollard, D. D. 2000; 36 (9): 2595-2606
  • How to constrain 3-D fault continuity and linkage using reflection seismic data: A geomechanical approach AAPG BULLETIN Maerten, L., Pollard, D. D., Karpuz, R. 2000; 84 (9): 1311-1324
  • Spacing of edge fractures in layered materials INTERNATIONAL JOURNAL OF FRACTURE Bai, T. X., Pollard, D. D., Gao, H. J. 2000; 103 (4): 373-395
  • Explanation far fracture spacing in layered materials NATURE Bai, T., Pollard, D. D., Gao, H. 2000; 403 (6771): 753-756
  • Mechanical prediction of fracture aperture in layered rocks JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Bai, T. X., Pollard, D. D., Gross, M. R. 2000; 105 (B1): 707-721
  • Joints at high angles to normal fault strike: an explanation using 3-D numerical models of fault-perturbed stress fields JOURNAL OF STRUCTURAL GEOLOGY Kattenhorn, S. A., Aydin, A., Pollard, D. D. 2000; 22 (1): 1-23
  • Fracture spacing in layered rocks: a new explanation based on the stress transition JOURNAL OF STRUCTURAL GEOLOGY Bai, T. X., Pollard, D. D. 2000; 22 (1): 43-57
  • Fluid flow in discrete joint sets: Field observations and numerical simulations JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Taylor, W. L., Pollard, D. D., Aydin, A. 1999; 104 (B12): 28983-29006
  • Is lithostatic loading important for the slip behavior and evolution of normal faults in the Earth's crust? JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Kattenhorn, S. A., Pollard, D. D. 1999; 104 (B12): 28879-28898
  • Spacing of fractures in a multilayer at fracture saturation INTERNATIONAL JOURNAL OF FRACTURE Bai, T. X., Pollard, D. D. 1999; 100 (4): L23-L28
  • Can we understand structural and tectonic processes and their products without appeal to a complete mechanics? JOURNAL OF STRUCTURAL GEOLOGY Fletcher, R. C., Pollard, D. D. 1999; 21 (8-9): 1071-1088
  • Slip distributions on intersecting normal faults JOURNAL OF STRUCTURAL GEOLOGY Maerten, L., Willemse, E. J., Pollard, D. D., Rawnsley, K. 1999; 21 (3): 259-271
  • Nucleation, growth and structural development of mylonitic shear zones in granitic rocks: Reply JOURNAL OF STRUCTURAL GEOLOGY Christiansen, P. P., Pollard, D. D. 1998; 20 (12): 1801-1803
  • Toward more realistic formulations for the analysis of laccoliths JOURNAL OF STRUCTURAL GEOLOGY Kerr, A. D., Pollard, D. D. 1998; 20 (12): 1783-1793
  • Fault Linkage: Three-dimensional mechanical interaction between echelon normal faults JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Crider, J. G., Pollard, D. D. 1998; 103 (B10): 24373-24391
  • Fault-controlled hydrocarbon pathways in the Monterey Formation, California AAPG BULLETIN Dholakia, S. K., Aydin, A., Pollard, D. D., Zoback, M. D. 1998; 82 (8): 1551-1574
  • Mapping and modeling of radial fracture patterns on Venus JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Koenig, E., Pollard, D. D. 1998; 103 (B7): 15183-15202
  • Morphologic dating of scarps formed by repeated slip events along the San Andreas fault, Carrizo plain, California JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Arrowsmith, J. R., Rhodes, D. D., Pollard, D. D. 1998; 103 (B5): 10141-10160
  • On the orientation and patterns of wing cracks and solution surfaces at the tips of a sliding flaw or fault JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Willemse, E. J., Pollard, D. D. 1998; 103 (B2): 2427-2438
  • Simulation of Transient Well-Test Signatures for Geologically Realistic Faults in Sandstone Reservoirs SPE Journal Matthai, S. K., Aydin, A., Pollard, D. D., Roberts, S. G. 1998: 62-76
  • Nucleation, growth and structural development of mylonitic shear zones in granitic rock JOURNAL OF STRUCTURAL GEOLOGY Christiansen, P. P., Pollard, D. D. 1997; 19 (9): 1159-1172
  • Why blind thrust faults do not propagate to the Earth's surface: Numerical modeling of coseismic deformation associated with thrust-related anticlines JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Roering, J. J., Cooke, M. L., Pollard, D. D. 1997; 102 (B6): 11901-11912
  • Hillslope development in areas of active tectonics JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Arrowsmith, J. R., Pollard, D. D., Rhodes, D. D. 1996; 101 (B3): 6255-6275
  • Fracture propagation paths under mixed mode loading within rectangular blocks of polymethyl methacrylate JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Cooke, M. L., Pollard, D. D. 1996; 101 (B2): 3387-3400
  • Three-dimensional analyses of slip distributions on normal fault arrays with consequences for fault scaling JOURNAL OF STRUCTURAL GEOLOGY Willemse, E. J., Pollard, D. D., Aydin, A. 1996; 18 (2-3): 295-309
  • DISTINCT ELEMENT MODELING OF DEFORMATION BANDS IN SANDSTONE JOURNAL OF STRUCTURAL GEOLOGY ANTONELLINI, M. A., Pollard, D. D. 1995; 17 (8): 1165-1182
  • AN EXPERIMENTAL-STUDY OF THE RELATIONSHIP BETWEEN JOINT SPACING AND LAYER THICKNESS JOURNAL OF STRUCTURAL GEOLOGY Wu, H. Q., Pollard, D. D. 1995; 17 (6): 887-905
  • AN EXPERIMENTALLY VERIFIED CRITERION FOR PROPAGATION ACROSS UNBOUNDED FRICTIONAL INTERFACES IN BRITTLE, LINEAR ELASTIC-MATERIALS INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES & GEOMECHANICS ABSTRACTS Renshaw, C. E., Pollard, D. D. 1995; 32 (3): 237-249
  • STRAIN ACCOMMODATION ABOUT STRIKE-SLIP-FAULT DISCONTINUITIES IN GRANITIC ROCK UNDER BRITTLE-TO-DUCTILE CONDITIONS JOURNAL OF STRUCTURAL GEOLOGY Burgmann, R., Pollard, D. D. 1994; 16 (12): 1655-?
  • SLIP DISTRIBUTIONS ON FAULTS - EFFECTS OF STRESS GRADIENTS, INELASTIC DEFORMATION, HETEROGENEOUS HOST-ROCK STIFFNESS, AND FAULT INTERACTION JOURNAL OF STRUCTURAL GEOLOGY Burgmann, R., Pollard, D. D., Martel, S. J. 1994; 16 (12): 1675-1690
  • MICROSTRUCTURE OF DEFORMATION BANDS IN POROUS SANDSTONES AT ARCHES NATIONAL-PARK, UTAH JOURNAL OF STRUCTURAL GEOLOGY ANTONELLINI, M. A., Aydin, A., Pollard, D. D. 1994; 16 (7): 941-959
  • ARE LARGE DIFFERENTIAL STRESSES REQUIRED FOR STRAIGHT FRACTURE PROPAGATION PATHS JOURNAL OF STRUCTURAL GEOLOGY Renshaw, C. E., Pollard, D. D. 1994; 16 (6): 817-822
  • NUMERICAL-SIMULATION OF FRACTURE SET FORMATION - A FRACTURE-MECHANICS MODEL CONSISTENT WITH EXPERIMENTAL-OBSERVATIONS JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Renshaw, C. E., Pollard, D. D. 1994; 99 (B5): 9359-9372
  • PETROPHYSICAL STUDY OF FAULTS IN SANDSTONE USING PETROGRAPHIC IMAGE-ANALYSIS AND X-RAY COMPUTERIZED-TOMOGRAPHY PURE AND APPLIED GEOPHYSICS Antonellini, M., Aydin, A., Pollard, D. D., DONFRO, P. 1994; 143 (1-3): 181-201
  • STRESS INVERSION METHODS - ARE THEY BASED ON FAULTY ASSUMPTIONS JOURNAL OF STRUCTURAL GEOLOGY Pollard, D. D., SALTZER, S. D., Rubin, A. M. 1993; 15 (8): 1045-1054
  • MODELING A FRACTURE SET IN A LAYERED BRITTLE MATERIAL ENGINEERING FRACTURE MECHANICS Wu, H., Pollard, D. D. 1992; 42 (6): 1011-1017
  • INFLUENCE OF THE STATE OF STRESS ON THE BRITTLE-DUCTILE TRANSITION IN GRANITIC ROCK - EVIDENCE FROM FAULT STEPS IN THE SIERRA-NEVADA, CALIFORNIA GEOLOGY Burgmann, R., Pollard, D. D. 1992; 20 (7): 645-648
  • PROPAGATION OF A SET OF OPENING-MODE FRACTURES IN LAYERED BRITTLE MATERIALS UNDER UNIAXIAL STRAIN CYCLING JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Wu, H. Q., Pollard, D. D. 1992; 97 (B3): 3381-3396
  • BOUNDARY-CONDITIONS FOR ROCK FRACTURE-ANALYSIS USING THE BOUNDARY ELEMENT METHOD JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH ZELLER, S. S., Pollard, D. D. 1992; 97 (B2): 1991-1997
  • DISTINCT ELEMENT MODELING OF STRUCTURES FORMED IN SEDIMENTARY OVERBURDEN BY EXTENSIONAL REACTIVATION OF BASEMENT NORMAL FAULTS TECTONICS SALTZER, S. D., Pollard, D. D. 1992; 11 (1): 165-174
  • THE WEST MAGEIK LAKE SILL COMPLEX AS AN ANALOG FOR MAGMA TRANSPORT DURING THE 1912 ERUPTION AT THE VALLEY OF 10000 SMOKES, ALASKA GEOPHYSICAL RESEARCH LETTERS Lowenstern, J. B., WALLMANN, P. C., Pollard, D. D. 1991; 18 (8): 1569-1572
  • THE INITIATION AND GROWTH OF EN-ECHELON VEINS JOURNAL OF STRUCTURAL GEOLOGY Olson, J. E., Pollard, D. D. 1991; 13 (5): 595-608
  • NEW STRUCTURAL LIMITS ON MAGMA CHAMBER LOCATIONS AT THE VALLEY OF 10000 SMOKES, KATMAI NATIONAL-PARK, ALASKA GEOLOGY WALLMANN, P. C., Pollard, D. D., Hildreth, W., Eichelberger, J. C. 1990; 18 (12): 1240-1243
  • FLEXURE AND FAULTING OF SEDIMENTARY HOST ROCKS DURING GROWTH OF IGNEOUS DOMES, HENRY MOUNTAINS, UTAH JOURNAL OF STRUCTURAL GEOLOGY Jackson, M. D., Pollard, D. D. 1990; 12 (2): 185-206
  • MECHANICS OF SLIP AND FRACTURE ALONG SMALL FAULTS AND SIMPLE STRIKE-SLIP-FAULT ZONES IN GRANITIC ROCK JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS Martel, S. J., Pollard, D. D. 1989; 94 (B7): 9417-9428
  • SURFACE DEFORMATION AND SHALLOW DIKE INTRUSION PROCESSES AT INYO CRATERS, LONG VALLEY, CALIFORNIA JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS Mastin, L. G., Pollard, D. D. 1988; 93 (B11): 13221-13235
  • THE LACCOLITH STOCK CONTROVERSY - NEW RESULTS FROM THE SOUTHERN HENRY MOUNTAINS, UTAH - REPLY GEOLOGICAL SOCIETY OF AMERICA BULLETIN Jackson, M. D., Pollard, D. D. 1988; 100 (10): 1658-1659
  • DEVELOPMENT OF SIMPLE STRIKE-SLIP-FAULT ZONES, MOUNT ABBOT QUADRANGLE, SIERRA-NEVADA, CALIFORNIA GEOLOGICAL SOCIETY OF AMERICA BULLETIN Martel, S. J., Pollard, D. D., Segall, P. 1988; 100 (9): 1451-1465
  • MECHANICAL MODELS FOR CORRELATION OF RING-FRACTURE ERUPTIONS AT PANTELLERIA, STRAIT OF SICILY, WITH GLACIAL SEA-LEVEL DRAWDOWN BULLETIN OF VOLCANOLOGY WALLMANN, P. C., Mahood, G. A., Pollard, D. D. 1988; 50 (5): 327-339
  • PROGRESS IN UNDERSTANDING JOINTING OVER THE PAST CENTURY GEOLOGICAL SOCIETY OF AMERICA BULLETIN Pollard, D. D., Aydin, A. 1988; 100 (8): 1181-1204
  • DIKE-INDUCED FAULTING IN RIFT ZONES OF ICELAND AND AFAR GEOLOGY Rubin, A. M., Pollard, D. D. 1988; 16 (5): 413-417
  • THE LACCOLITH-STOCK CONTROVERSY - NEW RESULTS FROM THE SOUTHERN HENRY MOUNTAINS, UTAH GEOLOGICAL SOCIETY OF AMERICA BULLETIN Jackson, M. D., Pollard, D. D. 1988; 100 (1): 117-139
  • POSSIBLE EFFECT OF ASPECT RATIOS OF MAGMA CHAMBERS ON ERUPTION FREQUENCY - COMMENT AND REPLY GEOLOGY Pollard, D. D., WALLMANN, P. C., Gudmundsson, A. 1987; 15 (9): 877-879
  • FIELD RELATIONS BETWEEN DIKES AND JOINTS - EMPLACEMENT PROCESSES AND PALEOSTRESS ANALYSIS JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS Delaney, P. T., Pollard, D. D., ZIONY, J. I., MCKEE, E. H. 1986; 91 (B5): 4920-4938
  • DILATION AND LINKAGE OF ECHELON CRACKS JOURNAL OF STRUCTURAL GEOLOGY Nicholson, R., Pollard, D. D. 1985; 7 (5): 583-?
  • INYO DIKE ROTATION SCIENCE Fink, J., Pollard, D. 1985; 228 (4706): 1382-?
  • PROPAGATION AND LINKAGE OF OCEANIC RIDGE SEGMENTS JOURNAL OF GEOPHYSICAL RESEARCH Pollard, D. D., Aydin, A. 1984; 89 (NB12): 17-28
  • SURFACE DEFORMATION IN VOLCANIC RIFT ZONES TECTONOPHYSICS Pollard, D. D., Delaney, P. T., Duffield, W. A., Endo, E. T., Okamura, A. T. 1983; 94 (1-4): 541-584
  • STRUCTURAL EVIDENCE FOR DIKES BENEATH SILICIC DOMES, MEDICINE LAKE HIGHLAND VOLCANO, CALIFORNIA GEOLOGY Fink, J. H., Pollard, D. D. 1983; 11 (8): 458-461
  • JOINT FORMATION IN GRANITIC ROCK OF THE SIERRA-NEVADA GEOLOGICAL SOCIETY OF AMERICA BULLETIN Segall, P., Pollard, D. D. 1983; 94 (5): 563-575
  • NUCLEATION AND GROWTH OF STRIKE SLIP FAULTS IN GRANITE JOURNAL OF GEOPHYSICAL RESEARCH Segall, P., Pollard, D. D. 1983; 88 (NB1): 555-568
  • FORMATION AND INTERPRETATION OF DILATANT ECHELON CRACKS GEOLOGICAL SOCIETY OF AMERICA BULLETIN Pollard, D. D., Segall, P., Delaney, P. T. 1982; 93 (12): 1291-1303
  • SOLIDIFICATION OF BASALTIC MAGMA DURING FLOW IN A DIKE AMERICAN JOURNAL OF SCIENCE Delaney, P. T., Pollard, D. D. 1982; 282 (6): 856-885
  • ANTI-CRACK MODEL FOR PRESSURE SOLUTION SURFACES GEOLOGY Fletcher, R. C., Pollard, D. D. 1981; 9 (9): 419-424
  • MECHANICS OF DISCONTINUOUS FAULTS JOURNAL OF GEOPHYSICAL RESEARCH Segall, P., Pollard, D. D. 1980; 85 (NB8): 4337-4350
  • MECHANICS OF GROWTH OF SOME LACCOLITHIC INTRUSIONS IN HENRY MOUNTAINS, UTAH .2. BENDING AND FAILURE OF OVERBURDEN LAYERS AND SILL FORMATION TECTONOPHYSICS Pollard, D. D., Johnson, A. M. 1973; 18 (3-4): 311-354
  • MECHANICS OF GROWTH OF SOME LACCOLITHIC INTRUSIONS IN HENRY MOUNTAINS, UTAH .1. FIELD OBSERVATIONS, GILBERTS MODEL, PHYSICAL PROPERTIES AND FLOW OF MAGMA TECTONOPHYSICS Johnson, A. M., Pollard, D. D. 1973; 18 (3-4): 261-309

Books and Book Chapters


  • Fundamentals of Structural Geology Pollard, D. D., Fletcher, R. C. Cambridge University Press, New York. 2005
  • Using differential geometry to characterize and analyze the morphology of joints The Initiation, Propagation, and Arrest of Joints and Other Fractures Pollard, D. D., Bergbauer, S., Mynatt, I. edited by Cosgrove, J. W., Engelder, T. Geological Society of London. 2004: 153-182
  • Normal fault growth: evolution of tipline shapes and slip distribution Aspects of Tectonic Faulting Willemse, E. M., Pollard, D. D. edited by Lehner, F. K., Urai, J. L. Springer-Verlag, Berlin. 2000: 193-226
  • Interlayer slip and joint localization in East Kaibab Monocline, Utah: field evidence and results from numerical modeling Forced Folds and Fractures Cooke, M., Mollema, P., Pollard, D. D., Aydin, A. edited by Cosgrove, J. W., Ameen, M. S. Geological Society, London. 2000: 23-49
  • Numerical simulation of departures from radial drawdown in a faulted sandstone reservoir with joints and deformation bands Faulting, Fault Sealing and Fluid Flow in Hydrocarbon Reservoirs Matthai, S. K., Aydin, A., Pollard, D. D., Roberts, S. G. edited by Jones, G., Fisher, Q. J., Knipe, R. J. Geological Society, London. 1998 : 157-191

Conference Proceedings


  • A complementarity approach for modeling fractures 41st U.S. Symposium on Rock Mechanics, "50 years of Rock Mechanics-Landmarks and Future Challenges" Mutlu, O., Pollard, D. D. edited by Yale, D., Holtz, S., Breeds, C., Ozbay, U. 2006: 9 Pages
  • Bedding-plane slip in initial stages of fault-related folding Cooke, M. L., Pollard, D. D. PERGAMON-ELSEVIER SCIENCE LTD. 1997: 567-581
  • DEVELOPMENT OF BEDDING-PLANE FAULTS AND FRACTURE LOCALIZATION IN A FLEXED MULTILAYER - A NUMERICAL-MODEL Cooke, M. L., Pollard, D. D. A A BALKEMA. 1994: 131-138
  • PHYSICALLY-BASED MODELS OF ROCK FRACTURE Renshaw, C. E., Pollard, D. D. A A BALKEMA. 1994: 97-104
  • PREDICTION OF FRACTURE DENSITY AND DRAINAGE DISTANCE IN LAYERED ROCK MASSES USING BOREHOLE DATA Wu, H. Q., Willemse, E. J., Pollard, D. D. A A BALKEMA. 1994: 487-494
  • EFFECT OF STRAIN-RATE ON A SET OF FRACTURES Wu, H., Pollard, D. D. PERGAMON-ELSEVIER SCIENCE LTD. 1993: 869-872
  • THE GEOMETRY OF ECHELON FRACTURES IN ROCK - IMPLICATIONS FROM LABORATORY AND NUMERICAL EXPERIMENTS Thomas, A. L., Pollard, D. D. PERGAMON-ELSEVIER SCIENCE LTD. 1993: 323-334