Academic Appointments


Administrative Appointments


  • Postdoctoral Researcher, Universitaet Potsdam (2001 - 2002)
  • Postdoctoral Research Fellow, Universitaet Potsdam (2002 - 2003)
  • Postdoctoral Research Associate, University of California, Berkeley (2003 - 2004)
  • Assistant Professor, Stanford University (2005 - 2011)
  • Associate Professor, Stanford University (2011 - Present)

Honors & Awards


  • Postdoctoral Research Fellow, Alexander von Humboldt Fellowship, Universitaet Potsdam (2001-2002)
  • Terman Fellow, Stanford University (2006-present)
  • Outstanding Reviewer Citation - JGR Earth Surface, American Geophysical Union (2006)
  • School of Earth Sciences Award for Excellence in Teaching, Stanford University (2009)
  • Walter J. Gores Award for Excellence in Teaching, Stanford University (2012)
  • AGU Outstanding Reviewer Citation - Tectonics, American Geophysical Union (2013)
  • AGU Outstanding Reviewer Citation - GRL, American Geophysical Union (2013)

Boards, Advisory Committees, Professional Organizations


  • Associate Editor, Basin Research (2014 - Present)
  • Associate Editor, Tectonics, American Geophysical Union (2014 - Present)
  • Member, Vice Provost for Online Learning Advisory Board, Stanford University (2014 - Present)
  • SES Teaching Task Force, School of Earth Sciences, Stanford University (2014 - Present)
  • Distinguished Lecturer, School of Earth Sciences, Stanford University (2013 - 2014)
  • Invited Speaker, University of California, Berkeley (2013 - 2013)
  • Associate Editor, Lithosphere (2012 - Present)
  • Member, Undergraduate Curriculum Committee, Stanford University (2010 - 2011)
  • Lecturer, Intel International Science and Engineering Fair Stanford Orientation, Stanford University (2010 - 2010)
  • Lecturer, New Student Orientation, Stanford University (2010 - 2010)
  • de facto GES representative to proposed Hazards Initiative, Stanford University (2009 - 2011)
  • Invited Keynote Speaker, Long-Range Science Goals for Geodesy Community Workshop (2009 - 2009)
  • Invited Speaker, San Jose State University (2009 - 2009)
  • Invited Speaker, United States Geological Survey, Menlo Park, CA (2009 - 2009)
  • Invited Speaker, Penninsula Geological Society (2009 - 2009)
  • Invited Keynote Speaker, Deformation Mechanisms, Rheology and Tectonics Meeting, Milano, Italy (2008 - 2008)
  • Member, School of Earth Sciences Council, Stanford University (2008 - 2008)
  • Invited Speaker, University of California, Santa Cruz (2007 - 2007)
  • Member, Computational Seismology Search Committee, Department of Geophysics, Stanford University (2007 - 2007)
  • Program Committee Member, Earthscope Annual National Meeting, National Science Foundation (2007 - 2007)
  • Member, Graduate Student Admissions Committee, Stanford University (2006 - 2011)
  • Member. Steering Committee, National Center for Airborne Laser Mapping (2005 - 2007)
  • Invited Speaker, University of California, Los Angeles (2005 - 2005)
  • Steering Committee Member, National Center for Airborne Laser Mapping (2004 - 2008)
  • Invited Speaker, Department of Geological Sciences, University of Oregon (2004 - 2004)
  • Invited Speaker, Department of Earth Sciences, University of Southern California (2004 - 2004)
  • Invited Speaker, Berkeley Seismology Laboratory, University of California, Berkeley (2004 - 2004)
  • Invited Speaker - Department of Geological and Environmental Sciences, Stanford University (2004 - 2004)
  • Invited Speaker, Department of Geoscience,, University of Nevada, Las Vegas (2004 - 2004)
  • Invited Speaker, Berkeley Seismology Laboratory, University of California, Berkeley (2003 - 2003)
  • Invited Speaker, Department of Geology, University of California, Davis (2003 - 2003)
  • Invited Speaker, Department of Earth and Atmospheric Sciences, Cornell University (2003 - 2003)
  • Invited Speaker, International Quality Network (IQN) Paleoseismology Workshop, Potsdam, Germany (2002 - 2002)
  • Invited Speaker, Geology Department Colloquium, University of South Florida (2002 - 2002)
  • Invited Speaker, United States Geological Survey Earthquake Hazards Seminar (2001 - 2001)

Professional Education


  • Ph.D., Arizona State University, Geology (2001)
  • B.S., Stanford University, Geological and Environmental Sciences (1996)

Current Research and Scholarly Interests


Research
I study the landscape's response to active faulting and folding of the Earth's crust. My students and I use a wide range of tools to study these processes, such as geologic and geomorphic field studies, and numerical models of tectonic and erosional processes. My research spans a broad range of time and spatial scales, from the development of mountain ranges over millions of years through the development of small landforms and watersheds over 10s-100s of thousands of years. For example, at the scale of entire mountain belts, I study how deformation and erosion within the Andes may be coupled, providing a link between deep earth and atmospheric processes. At the other extreme, I study how active uplift along the San Andreas Fault affects the short-term development of small, ~4-km-long landforms. Finally, I have recently become interested in studying large, slow-moving landslides in urbanized areas (and the hazards they pose) using remote sensing methods such as Synthetic Aperture Radar Interferometry.

Teaching
I teach both graduate and undergraduate classes and seminars on the development of mountain belts in tectonically active areas. These courses use both classic field examples, as well as local field excursions in the Santa Cruz Mountains as guides to understanding how active faulting may produce steep topography.

Professional Activities
Terman Fellow, 2006-present; Steering Committee, National Center for Airborne Laser Mapping, 2005- present; Program Committee, NSF-Earthscope Annual Meeting; Alexander von Humboldt Fellow, 2001-02

2024-25 Courses


All Publications


  • Climatic and lithological controls on the structure and thickness of granitic weathering zones EARTH AND PLANETARY SCIENCE LETTERS Goodfellow, B. W., Hilley, G. E. 2022; 600
  • Mountain Rivers Reveal the Earthquake Hazard of Geologic Faults in Silicon Valley GEOPHYSICAL RESEARCH LETTERS Aron, F., Johnstone, S. A., Mavrommatis, A., Sare, R., Maerten, F., Loveless, J. P., Baden, C. W., Hilley, G. E. 2022; 49 (19)
  • Seasonal and Multiyear Changes in CO2 Degassing at Mammoth Mountain Explained by Solid-Earth-Driven Fault Valving GEOPHYSICAL RESEARCH LETTERS Hilley, G. E., Lewicki, J. L., Baden, C. W. 2022; 49 (6)
  • Bridging earthquakes and mountain building in the Santa Cruz Mountains, CA. Science advances Baden, C. W., Shuster, D. L., Aron, F., Fosdick, J. C., Burgmann, R., Hilley, G. E. 2022; 8 (8): eabi6031

    Abstract

    Relative crustal motions along active faults generate earthquakes, and repeated earthquake cycles build mountain ranges over millions of years. However, the long-term summation of elastic, earthquake-related deformation cannot produce the deformation recorded within the rock record. Here, we provide an explanation for this discrepancy by showing that increases in strain facilitated by plastic deformation of Earth's crust during the earthquake cycle, in conjunction with isostatic deflection and erosion, transform relative fault motions that produce individual earthquakes to geologic deformations. We focus our study on the data-rich Santa Cruz Mountains, CA, USA and compare predicted and observed quantities for rock uplift, apatite (U-Th)/He thermochronology, topographic relief, 10Be-based erosion rates, and interseismic surface velocities. This approach reconciles these disparate records of mountain-building processes, allowing us to explicitly bridge decadal measures of deformation with that produced by millions of years of plate motion.

    View details for DOI 10.1126/sciadv.abi6031

    View details for PubMedID 35213228

  • Are submarine and subaerial drainages morphologically distinct? GEOLOGY Dobbs, S. C., McHargue, T., Malkowski, M. A., Gooley, J. T., Jaikla, C., White, C. J., Hilley, G. E. 2019; 47 (11): 1093–97

    View details for DOI 10.1130/G46329.1

    View details for Web of Science ID 000491287900018

  • Earth's topographic relief potentially limited by an upper bound on channel steepness NATURE GEOSCIENCE Hilley, G. E., Porder, S., Aron, F., Baden, C. W., Johnstone, S. A., Liu, F., Sare, R., Steelquist, A., Young, H. H. 2019; 12 (10): 828-+
  • Regional‐scale detection of fault scarps and other tectonic landforms: Examples from Northern California Journal of Geophysical Research: Solid Earth Sare, R., Hilley, G. E., DeLong, S. B. 2019; 124

    View details for DOI 10.1029/2018JB016886

  • Millennial-scale denudation rates of the Santa Lucia Mountains, California: Implications for landscape evolution in steep, high-relief, coastal mountain ranges GEOLOGICAL SOCIETY OF AMERICA BULLETIN Young, H. H., Hilley, G. E. 2018; 130 (11-12): 1809–24

    View details for DOI 10.1130/B31907.1

    View details for Web of Science ID 000449028300004

  • Adding a community partner to service learning may elevate learning but not necessarily service INTERNATIONAL JOURNAL OF DISASTER RISK REDUCTION Suckale, J., Saiyed, Z., Hilley, G., Alvisyahrin, T., Muhari, A., Zoback, M., Truebe, S. 2018; 28: 80–87
  • Weak bedrock allows north-south elongation of channels in semi-arid landscapes EARTH AND PLANETARY SCIENCE LETTERS Johnstone, S. A., Finnegan, N. J., Hilley, G. E. 2017; 478: 150–58
  • Geomorphology, denudation rates, and stream channel profiles reveal patterns of mountain building adjacent to the San Andreas fault in northern California, USA GEOLOGICAL SOCIETY OF AMERICA BULLETIN DeLong, S. B., Hilley, G. E., Prentice, C. S., Crosby, C. J., Yokelson, I. N. 2017; 129 (5-6): 732–49

    View details for DOI 10.1130/B31551.1

    View details for Web of Science ID 000403309300013

  • Benchmarking analogue models of brittle thrust wedges JOURNAL OF STRUCTURAL GEOLOGY Schreurs, G., Buiter, S. J., Boutelier, J., Burberry, C., Callot, J., Cavozzi, C., Cerca, M., Chen, J., Cristallini, E., Cruden, A. R., Cruz, L., Daniel, J. -., Da Poian, G., Garcia, V. H., Gomes, C. J., Grall, C., Guillot, Y., Guzman, C., Hidayah, T. N., Hilley, G., Klinkmuller, M., Koyi, H. A., Lu, C., Maillot, B., Meriaux, C., Nilfouroushan, F., Pan, C., Pillot, D., Portillo, R., Rosenau, M., Schellart, W. P., Schlische, R. W., Take, A., Vendeville, B., Vergnaud, M., Vettori, M., Wang, S., Withjack, M. O., Yagupsky, D., Yamada, Y. 2016; 92: 116-139
  • Encouraging Earthquake-Resistant Construction: A Randomized Controlled Trial in Nepal EARTHQUAKE SPECTRA Sanquini, A. M., Thapaliya, S. M., Wood, M. M., Baiocchi, M., Hilley, G. E. 2016; 32 (4): 1975-1988
  • Rate-weakening friction characterizes both slow sliding and catastrophic failure of landslides PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA Handwerger, A. L., Rempel, A. W., Skarbek, R. M., Roering, J. J., Hilley, G. E. 2016; 113 (37): 10281-10286

    Abstract

    Catastrophic landslides cause billions of dollars in damages and claim thousands of lives annually, whereas slow-moving landslides with negligible inertia dominate sediment transport on many weathered hillslopes. Surprisingly, both failure modes are displayed by nearby landslides (and individual landslides in different years) subjected to almost identical environmental conditions. Such observations have motivated the search for mechanisms that can cause slow-moving landslides to transition via runaway acceleration to catastrophic failure. A similarly diverse range of sliding behavior, including earthquakes and slow-slip events, occurs along tectonic faults. Our understanding of these phenomena has benefitted from mechanical treatments that rely upon key ingredients that are notably absent from previous landslide descriptions. Here, we describe landslide motion using a rate- and state-dependent frictional model that incorporates a nonlocal stress balance to account for the elastic response to gradients in slip. Our idealized, one-dimensional model reproduces both the displacement patterns observed in slow-moving landslides and the acceleration toward failure exhibited by catastrophic events. Catastrophic failure occurs only when the slip surface is characterized by rate-weakening friction and its lateral dimensions exceed a critical nucleation length [Formula: see text] that is shorter for higher effective stresses. However, landslides that are extensive enough to fall within this regime can nevertheless slide slowly for months or years before catastrophic failure. Our results suggest that the diversity of slip behavior observed during landslides can be described with a single model adapted from standard fault mechanics treatments.

    View details for DOI 10.1073/pnas.1607009113

    View details for Web of Science ID 000383092000034

    View details for PubMedID 27573836

    View details for PubMedCentralID PMC5027430

  • High spatio-temporal resolution observations of crater lake temperatures at Kawah Ijen volcano, East Java, Indonesia BULLETIN OF VOLCANOLOGY Lewicki, J. L., Caudron, C., van Hinsberg, V. J., Hilley, G. E. 2016; 78 (8)
  • The chemical, mechanical, and hydrological evolution of weathering granitoid JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE Goodfellow, B. W., Hilley, G. E., Webb, S. M., Sklar, L. S., Moon, S., Olson, C. A. 2016; 121 (8): 1410-1435
  • A unified framework for modeling landscape evolution by discrete flows JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE Shelef, E., Hilley, G. E. 2016; 121 (5): 816-842
  • Integrated thermal infrared imaging and structure-from-motion photogrammetry to map apparent temperature and radiant hydrothermal heat flux at Mammoth Mountain, CA, USA JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH Lewis, A., Hilley, G. E., Lewicki, J. L. 2015; 303: 16-24
  • Simulating depth-averaged, one-dimensional turbidity current dynamics using natural topographies JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE Traer, M. M., Fildani, A., McHargue, T., Hilley, G. E. 2015; 120 (8): 1485-1500
  • Recent topographic evolution and erosion of the deglaciated Washington Cascades inferred from a stochastic landscape evolution model JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE Moon, S., Shelef, E., Hilley, G. E. 2015; 120 (5): 856-876
  • Lithologic control on the form of soil-mantled hillslopes GEOLOGY Johnstone, S. A., Hilley, G. E. 2015; 43 (1): 83-86

    View details for DOI 10.1130/G36052.1

    View details for Web of Science ID 000352018600025

  • Influence of attenuated lithosphere and sediment loading on flexure of the deep-water Magallanes retroarc foreland basin, Southern Andes TECTONICS Fosdick, J. C., Graham, S. A., Hilley, G. E. 2014; 33 (12): 2505-2525
  • Multi-scale observations of the variability of magmatic CO2 emissions, Mammoth Mountain, CA, USA JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH Lewicki, J. L., Hilley, G. E. 2014; 284: 1-15
  • Symmetry, randomness, and process in the structure of branched channel networks GEOPHYSICAL RESEARCH LETTERS Shelef, E., Hilley, G. E. 2014; 41 (10): 3485-3493
  • Crustal migration of CO2-rich magmatic fluids recorded by tree-ring radiocarbon and seismicity at Mammoth Mountain, CA, USA EARTH AND PLANETARY SCIENCE LETTERS Lewicki, J. L., Hilley, G. E., Shelly, D. R., King, J. C., McGeehin, J. P., Mangan, M., EVANS, W. C. 2014; 390: 52-58
  • New estimates of silicate weathering rates and their uncertainties in global rivers Geochimica et Cosmochimica Acta Moon, S., Chamberlain, C. P., Hilley, G. E. 2014
  • Impact of flow routing on catchment area calculations, slope estimates, and numerical simulations of landscape development JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE Shelef, E., Hilley, G. E. 2013; 118 (4): 2105-2123

    View details for DOI 10.1002/jgrf.20127

    View details for Web of Science ID 000329873500007

  • Depth and character of rock weathering across a basaltic- hosted climosequence on Hawaii INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS Goodfellow, B. W., Chadwick, O. A., Hilley, G. E. 2013; 41 (11): 381-398

    View details for DOI 10.1002/esp.3505

    View details for Web of Science ID 000333483000008

  • Hillslopes Record the Growth and Decay of Landscapes SCIENCE Hurst, M. D., Mudd, S. M., Attal, M., Hilley, G. 2013; 341 (6148): 868-871

    Abstract

    Earth's surface archives the combined history of tectonics and erosion, which tend to roughen landscapes, and sediment transport and deposition, which smooth them. We analyzed hillslope morphology in the tectonically active Dragon's Back Pressure Ridge in California, United States, to assess whether tectonic uplift history can be reconstructed using measurable attributes of hillslope features within landscapes. Hilltop curvature and hillslope relief mirror measured rates of vertical displacement caused by tectonic forcing, and their relationships are consistent with those expected when idealizing hillslope transport as a nonlinear diffusion process. Hilltop curvature lags behind relief in its response to changing erosion rates, allowing growing landscapes to be distinguished from decaying landscapes. Numerical modeling demonstrates that hillslope morphology may be used to infer changes in tectonic rates.

    View details for DOI 10.1126/science.1241791

    View details for Web of Science ID 000323370600037

    View details for PubMedID 23970695

  • Restraining bend tectonics in the Santa Cruz Mountains, California, imaged using Be-10 concentrations in river sands GEOLOGY Gudmundsdottir, M. H., Blisniuk, K., Ebert, Y., Levine, N. M., Rood, D. H., Wilson, A., Hilley, G. E. 2013; 41 (8): 843-846

    View details for DOI 10.1130/G33970.1

    View details for Web of Science ID 000323274600007

  • Geologic CO2 input into groundwater and the atmosphere, Soda Springs, ID, USA CHEMICAL GEOLOGY Lewicki, J. L., Hilley, G. E., Dobeck, L., McLing, T. L., Kennedy, B. M., Bill, M., Marino, B. D. 2013; 339: 61-70
  • Eddy covariance network design for mapping and quantification of surface CO2 leakage fluxes INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL Lewicki, J. L., Hilley, G. E. 2012; 7: 137-144
  • Multitemporal ALSM change detection, sediment delivery, and process mapping at an active earthflow EARTH SURFACE PROCESSES AND LANDFORMS DeLong, S. B., Prentice, C. S., Hilley, G. E., Ebert, Y. 2012; 37 (3): 262-272

    View details for DOI 10.1002/esp.2234

    View details for Web of Science ID 000300838600002

  • The sensitivity of turbidity currents to mass and momentum exchanges between these underflows and their surroundings JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE Traer, M. M., Hilley, G. E., Fildani, A., McHargue, T. 2012; 117
  • Eddy covariance imaging of diffuse volcanic CO2 emissions at Mammoth Mountain, CA, USA BULLETIN OF VOLCANOLOGY Lewicki, J. L., Hilley, G. E., Dobeck, L., Marino, B. D. 2012; 74 (1): 135-141
  • Structural, geomorphic, and depositional characteristics of contiguous and broken foreland basins: examples from the eastern flanks of the central Andes in Bolivia and NW Argentina TECTONICS OF SEDIMENTARY BASINS: RECENT ADVANCES Strecker, M. R., Hilley, G. E., Bookhagen, B., Sobel, E. R., Busby, C., Azor, A. 2012: 508–21
  • Structural, geomorphic, and depositional characteristics of contiguous and broken foreland basins: examples from the eastern flanks of the central Andes in Bolivia and NW Argentina Recent Advances in Tectonics of Sedimentary Basins Strecker, M. R., Hilley, G. E., Bookhagen, B., Sobel, E. R. edited by Busby, C., Azor, A. Wiley-Blackwell. 2012
  • Climatic control of denudation in the deglaciated landscape of the Washington Cascades NATURE GEOSCIENCE Moon, S., Chamberlain, C. P., Blisniuk, K., Levine, N., Rood, D. H., Hilley, G. E. 2011; 4 (7): 469-473

    View details for DOI 10.1038/NGEO1159

    View details for Web of Science ID 000292241900020

  • Terrestrial source to deep-sea sink sediment budgets at high and low sea levels: Insights from tectonically active Southern California GEOLOGY Covault, J. A., Romans, B. W., Graham, S. A., Fildani, A., Hilley, G. E. 2011; 39 (7): 619-622

    View details for DOI 10.1130/G31801.1

    View details for Web of Science ID 000291729600003

  • Vadose zone controls on weathering intensity and depth: Observations from grussic saprolites APPLIED GEOCHEMISTRY Goodfellow, B. W., Hilley, G. E., Schulz, M. S. 2011; 26: S36-S39
  • Erosional control of the kinematics of the Aconcagua fold-and-thrust belt from numerical simulations and physical experiments GEOLOGY Cruz, L., Malinski, J., Hernandez, M., Take, A., Hilley, G. 2011; 39 (5): 439-442

    View details for DOI 10.1130/G31675.1

    View details for Web of Science ID 000289416500012

  • Constraints on the late Quaternary glaciations in Tibet from cosmogenic exposure ages of moraine surfaces QUATERNARY SCIENCE REVIEWS Chevalier, M., Hilley, G., Tapponnier, P., Van Der Woerd, J., Jing Liu-Zeng, L. Z., Finkel, R. C., Ryerson, F. J., Li, H., Liu, X. 2011; 30 (5-6): 528-554
  • Linking chronosequences with the rest of the world: predicting soil phosphorus content in denuding landscapes BIOGEOCHEMISTRY Porder, S., Hilley, G. E. 2011; 102 (1-3): 153-166
  • Links between topography, erosion, rheological heterogeneity, and deformation in contractional settings: Insights from the central Andes TECTONOPHYSICS Hilley, G. E., Coutand, I. 2010; 495 (1-2): 78-92
  • Erosional control of the kinematics and geometry of fold-and-thrust belts imaged in a physical and numerical sandbox JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Cruz, L., MALINSKI, J., Wilson, A., Take, W. A., Hilley, G. 2010; 115
  • Fault zone structure from topography: Signatures of en echelon fault slip at Mustang Ridge on the San Andreas Fault, Monterey County, California TECTONICS DeLong, S. B., Hilley, G. E., Rymer, M. J., Prentice, C. 2010; 29
  • Erosion, Geological History, and Indigenous Agriculture: A Tale of Two Valleys ECOSYSTEMS Vitousek, P. M., Chadwick, O. A., Hilley, G., Kirch, P. V., Ladefoged, T. N. 2010; 13 (5): 782-793
  • A TEST OF INITIATION OF SUBMARINE LEVEED CHANNELS BY DEPOSITION ALONE JOURNAL OF SEDIMENTARY RESEARCH Rowland, J. C., Hilley, G. E., Fildani, A. 2010; 80 (7-8): 710-727
  • Competition between erosion and reaction kinetics in controlling silicate-weathering rates EARTH AND PLANETARY SCIENCE LETTERS Hilley, G. E., CHAMBERLAIN, C. P., Moon, S., Porder, S., Willett, S. D. 2010; 293 (1-2): 191-199
  • Dynamics of CO2 fluxes and concentrations during a shallow subsurface CO2 release ENVIRONMENTAL EARTH SCIENCES Lewicki, J. L., Hilley, G. E., Dobeck, L., Spangler, L. 2010; 60 (2): 285-297
  • Morphologic dating of fault scarps using airborne laser swath mapping (ALSM) data GEOPHYSICAL RESEARCH LETTERS Hilley, G. E., DeLong, S., Prentice, C., Blisniuk, K., Arrowsmith, J. 2010; 37
  • 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
  • Eddy covariance mapping and quantification of surface CO2 leakage fluxes GEOPHYSICAL RESEARCH LETTERS Lewicki, J. L., Hilley, G. E. 2009; 36
  • Does the topographic distribution of the central Andean Puna Plateau result from climatic or geodynamic processes? GEOLOGY Strecker, M. R., Alonso, R., Bookhagen, B., Carrapa, B., Coutand, I., Hain, M. P., Hilley, G. E., Mortimer, E., Schoenbohm, L., Sobel, E. R. 2009; 37 (7): 643-646

    View details for DOI 10.1130/G25545A.1

    View details for Web of Science ID 000267390100016

  • Eddy covariance observations of surface leakage during shallow subsurface CO2 releases JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Lewicki, J. L., Hilley, G. E., Fischer, M. L., Pan, L., Oldenburg, C. M., Dobeck, L., Spangler, L. 2009; 114
  • Does the topographic distribution of the central Andean Plateau result from climatic or geodynamic processes? Geology Strecker, M. R., Alonso, R., Bookhagen, B., Carrapa, B., Coutand, I., Hain, M. P., Hilley, G. E., Mortimer, E., Schoenbohm, L, ., Sobel, E. R. 2009; 37: 643-646
  • Detection of CO2 leakage by eddy covariance during the ZERT project's CO2 release experiments 9th International Conference on Greenhouse Gas Control Technologies Lewicki, J. L., Hilley, G. E., Fischer, M. L., Pan, L., Oldenburg, C. M., Dobeck, L., Spangler, L. ELSEVIER SCIENCE BV. 2009: 2301–6
  • Earthquake-cycle deformation and fault slip rates in northern Tibet GEOLOGY Hilley, G. E., Johnson, K. M., Wang, M., Shen, Z., Buergmann, R. 2009; 37 (1): 31-34

    View details for DOI 10.1130/G25157A.1

    View details for Web of Science ID 000262428200008

  • A framework for predicting global silicate weathering and CO2 drawdown rates over geologic time-scales PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA Hilley, G. E., Porder, S. 2008; 105 (44): 16855-16859

    Abstract

    Global silicate weathering drives long-time-scale fluctuations in atmospheric CO(2). While tectonics, climate, and rock-type influence silicate weathering, it is unclear how these factors combine to drive global rates. Here, we explore whether local erosion rates, GCM-derived dust fluxes, temperature, and water balance can capture global variation in silicate weathering. Our spatially explicit approach predicts 1.9-4.6 x 10(13) mols of Si weathered globally per year, within a factor of 4-10 of estimates of global silicate fluxes derived from riverine measurements. Similarly, our watershed-based estimates are within a factor of 4-18 (mean of 5.3) of the silica fluxes measured in the world's ten largest rivers. Eighty percent of total global silicate weathering product traveling as dissolved load occurs within a narrow range (0.01-0.5 mm/year) of erosion rates. Assuming each mol of Mg or Ca reacts with 1 mol of CO(2), 1.5-3.3 x 10(8) tons/year of CO(2) is consumed by silicate weathering, consistent with previously published estimates. Approximately 50% of this drawdown occurs in the world's active mountain belts, emphasizing the importance of tectonic regulation of global climate over geologic timescales.

    View details for DOI 10.1073/pnas.0801462105

    View details for Web of Science ID 000260913800013

    View details for PubMedID 18952842

    View details for PubMedCentralID PMC2572559

  • Geomorphic response to uplift along the Dragon's Back pressure ridge, Carrizo Plain, California GEOLOGY Hilley, G. E., Arrowsmith, J. R. 2008; 36 (5): 367-370

    View details for DOI 10.1130/G24517A.1

    View details for Web of Science ID 000255853300008

  • Six-week time series of eddy covariance CO2 flux at Mammoth Mountain, California: Performance evaluation and role of meteorological forcing JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH Lewicki, J. L., Fischer, M. L., Hilley, G. E. 2008; 171 (3-4): 178-190
  • Deducing paleoearthquake timing and recurrence from paleoseismic data, part II: Analysis of paleoseismic excavation data and earthquake behavior along the central and southern San Andreas fault BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA Hilley, G. E., Young, J. J. 2008; 98 (1): 407-439

    View details for DOI 10.1785/0120070012

    View details for Web of Science ID 000253494200026

  • Deducing paleoearthquake timing and recurrence from paleoseismic data, part 1: Evaluation of new Bayesian Markov-Chain Monte Carlo simulation methods applied to excavations with continuous peat growth BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA Hilley, G. E., Young, J. J. 2008; 98 (1): 383-406

    View details for DOI 10.1785/0120020077

    View details for Web of Science ID 000253494200025

  • The relationship between tectonic uplift and chemical weathering rates in the Washington cascades: Field measurements and model predictions AMERICAN JOURNAL OF SCIENCE Hren, M. T., Hilley, G. E., Chamberlain, G. P. 2007; 307 (9): 1041-1063

    View details for DOI 10.2475/09.2007.01

    View details for Web of Science ID 000253135700001

  • 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)
  • Influence of lithosphere viscosity structure on estimates of fault slip rate in the Mojave region of the San Andreas fault system JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Johnson, K. M., Hilley, G. E., Buergmann, R. 2007; 112 (B7)
  • Chemical weathering, mass loss, and dust inputs across a climate by time matrix in the Hawaiian Islands EARTH AND PLANETARY SCIENCE LETTERS Porder, S., Hilley, G. E., Chadwick, O. A. 2007; 258 (3-4): 414-427
  • Major ion chemistry of the Yarlung Tsangpo-Brahmaputra river: Chemical weathering, erosion, and CO2 consumption in the southern Tibetan plateau and eastern syntaxis of the Himalaya GEOCHIMICA ET COSMOCHIMICA ACTA Hren, M. T., Chamberlain, C. P., Hilley, G. E., Blisniuk, P. M., Bookhagen, B. 2007; 71 (12): 2907-2935
  • Dynamic coupling of volcanic CO2 flow and wind at the Horseshoe Lake tree kill, Mammoth Mountain, California GEOPHYSICAL RESEARCH LETTERS Lewicki, J. L., Hilley, G. E., Tosha, T., Aoyagi, R., Yamamoto, K., Benson, S. M. 2007; 34 (3)
  • Uplift, erosion, and phosphorus limitation in terrestrial ecosystems ECOSYSTEMS Porder, S., Vitousek, P. M., Chadwick, O. A., Chamberlain, C. P., Hilley, G. E. 2007; 10 (1): 158-170
  • Tectonics and climate of the southern central Andes ANNUAL REVIEW OF EARTH AND PLANETARY SCIENCES Strecker, M. R., Alonso, R. N., Bookhagen, B., Carrapa, B., Hilley, G. E., Sobel, E. R., Trauth, M. H. 2007; 35: 747-787
  • Resolving vertical tectonics in the San Francisco Bay Area from permanent scatterer InSAR and GPS analysis GEOLOGY Burgmann, R., Hilley, G., Ferretti, A., Novali, F. 2006; 34 (3): 221-224

    View details for DOI 10.1130/G22064.1

    View details for Web of Science ID 000235959300025

  • Tectonics, climate, and landscape evolution of the southern Central Andes: The Argentine Puna Plateau and adjacent Regions between 22 and 28°S lat, in The Andes—Active Subduction Orogeny Frontiers in Earth Sciences Alonso, R. N., Carrapa, B., Coutand, I., Haschke, M., Hilley, G. E., Schoenbohm, L., Sobel, E. R., Trauth, M. H., Villanueva, A. edited by Oncken, O., Chong, G., Franz, G., Giese, P., Götze, et al. Springer Verlag, Berlin. 2006: 265—283
  • Tectonics, Climate, and Landscape Evolution of the Southern Central Andes: the Argentine Puna Plateau and Adjacent Regions between 22 and 30 degrees S ANDES: ACTIVE SUBDUCTION OROGENY Alonso, R. N., Bookhagen, B., Carrapa, B., Coutand, I., Haschke, M., Hilley, G. E., Schoenbohm, L., Sobel, E. R., Strecker, M. R., Trauth, M. H., Villanueva, A., Oncken, O., Chong, G., Franz, G., Giese, P., Gotze, H. J., Ramos, V. A., Strecker, M. R., Wigger, P. 2006: 265–83
  • Mechanics and erosion of basement-cored uplift provinces JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Hilley, G. E., Blisniuk, P. M., Strecker, M. R. 2005; 110 (B12)
  • An improved strategy to detect CO2 leakage for verification of geologic carbon sequestration GEOPHYSICAL RESEARCH LETTERS Lewicki, J. L., Hilley, G. E., Oldenburg, C. M. 2005; 32 (19)
  • Processes of oscillatory basin filling and excavation in a tectonically active orogen: Quebrada del Toro Basin, NW Argentina (vol 117, pg 887, 2005) GEOLOGICAL SOCIETY OF AMERICA BULLETIN Hilley, G. E., Strecker, M. R. 2005; 117 (9-10): 1367-1367

    View details for DOI 10.1130/B25602.1

    View details for Web of Science ID 000231587300016

  • Oligocene range uplift and development of plateau morphology in the southern central Andes TECTONICS Carrapa, B., Adelmann, D., Hilley, G. E., Mortimer, E., Sobel, E. R., Strecker, M. R. 2005; 24 (4)
  • Interseismic coupling and asperity distribution along the Kamchatka subduction zone JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Burgmann, R., Kogan, M. G., Steblov, G. M., Hilley, G., Levin, V. E., Apel, E. 2005; 110 (B7)
  • Processes of oscillatory basin filling and excavation in a tectonically active orogen: Quebrada del Toro Basin, NW Argentina GEOLOGICAL SOCIETY OF AMERICA BULLETIN Hilley, G. E., Strecker, M. R. 2005; 117 (7-8): 887-901

    View details for DOI 10.1130/1325602.1

    View details for Web of Science ID 000229991100005

  • Bayesian inference of plastosphere viscosities near the Kunlun Fault, northern Tibet GEOPHYSICAL RESEARCH LETTERS Hilley, G. E., Burgmann, R., Zhang, P. Z., Molnar, P. 2005; 32 (1)
  • Dynamics of slow-moving landslides from permanent scatterer analysis SCIENCE Hilley, G. E., Burgmann, R., Ferretti, A., Novali, F., Rocca, F. 2004; 304 (5679): 1952-1955

    Abstract

    High-resolution interferometric synthetic aperture radar (InSAR) permanent scatterer data allow us to resolve the rates and variations in the rates of slow-moving landslides. Satellite-to-ground distances (range changes) on landslides increase at rates of 5 to 7 millimeters per year, indicating average downslope sliding velocities from 27 to 38 millimeters per year. Time-series analysis shows that displacement occurs mainly during the high-precipitation season; during the 1997-1998 El Niño event, rates of range change increased to as much as 11 millimeters per year. The observed nonlinear relationship of creep and precipitation rates suggests that increased pore fluid pressures within the shallow subsurface may initiate and accelerate these features. Changes in the slope of a hill resulting from increases in the pore pressure and lithostatic stress gradients may then lead to landslides.

    View details for Web of Science ID 000222241600042

    View details for PubMedID 15218146

  • Growth and erosion of fold-and-thrust belts with an application to the Aconcagua fold-and-thrust belt, Argentina JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Hilley, G. E., Strecker, M. R., Ramos, V. A. 2004; 109 (B1)
  • Steady state erosion of critical Coulomb wedges with applications to Taiwan and the Himalaya JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Hilley, G. E., Strecker, M. R. 2004; 109 (B1)
  • The scaling relationship between self-potential and fluid flow on Masaya volcano, Nicaragua Water-Rock Interaction: Proceedings of the Eleventh International Symposium LewickI, J. L., Hilley, G. E., Connor, C. edited by Wanty, R. B., Seal, R. R. Taylor and Francis, London. 2004: 153—156
  • Formation of internally drained contractional basins by aridity-limited bedrock incision JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Sobel, E. R., Hilley, G. E., Strecker, M. R. 2003; 108 (B7)
  • Shallow soil CO2 flow along the San Andreas and Calaveras Faults, California JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH Lewicki, J. L., EVANS, W. C., Hilley, G. E., Sorey, M. L., Rogie, J. D., Brantley, S. L. 2003; 108 (B4)
  • Differential structural and geomorphic mountain-front evolution in an active continental collision zone: The northwest Pamir, southern Kyrgyzstan GEOLOGICAL SOCIETY OF AMERICA BULLETIN Strecker, M. R., Hilley, G. E., Arrowsmith, J. R., Coutand, I. 2003; 115 (2): 166-181
  • Late Cenozoic tectonic development of the intramontane Alai Valley, (Pamir-Tien Shan region, central Asia): An example of intracontinental deformation due to the Indo-Eurasia collision TECTONICS Coutand, I., Strecker, M. R., Arrowsmith, J. R., Hilley, G., Thiede, R. C., Korjenkov, A., Omuraliev, M. 2002; 21 (6)
  • Average Pleistocene climatic patterns in the southern central Andes: Controls on mountain glaciation and paleoclimate implications JOURNAL OF GEOLOGY Haselton, K., Hilley, G., Strecker, M. R. 2002; 110 (2): 211-226
  • Initial breaching and evolution of an extensional monocline by a propagating normal fault, Baja California Sur, Mexico Journal of Structural Geology Wilsey, S. P., Umhoefer, P. J., Hilley, G. E. 2002; 24: 651-669
  • Interaction between normal faults and fractures and fault scarp morphology GEOPHYSICAL RESEARCH LETTERS Hilley, G. E., Arrowsmith, J. R., Amoroso, L. 2001; 28 (19): 3777-3780
  • Inferring segment strength contrasts and boundaries along low-friction faults using surface offset data, with an example from the Cholame-Carrizo segment boundary along the San Andreas Fault, southern California BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA Hilley, G. E., Arrowsmith, J. R., Stone, E. 2001; 91 (3): 427-440