François Renard

• Guren, Marthe Grønlie; Sveinsson, Henrik Andersen; Hafreager, Anders; Jamtveit, Bjørn; Malthe-Sørenssen, Anders & Renard, Francois (2021). Molecular dynamics study of confined water in the periclase-brucite system under conditions of reaction-induced fracturing. Geochimica et Cosmochimica Acta.  ISSN 0016-7037.  294, s 13- 27 . doi: 10.1016/j.gca.2020.11.016
• McBeck, Jessica Ann; Ben-Zion, Yehuda & Renard, Francois (2021). How the force and fracture architectures develop within and around healed fault zones during biaxial loading toward macroscopic failure. Journal of Structural Geology.  ISSN 0191-8141.  147 . doi: 10.1016/j.jsg.2021.104329
• McBeck, Jessica Ann; Mair, Karen & Renard, Francois Marie Paul L (2021). Decrypting healed fault zones: How gouge production reduces the influence of fault roughness. Geophysical Journal International.  ISSN 0956-540X.  225(2), s 759- 774 . doi: 10.1093/gji/ggab003
• McBeck, Jessica Ann; Zhu, Wenlu & Renard, Francois (2021). The competition between fracture nucleation, propagation and coalescence in crystalline rock. Solid Earth (SE).  ISSN 1869-9510.  12, s 375- 387 . doi: 10.5194/se-12-375-2021
• Montes-Hernandez, German; Findling, Nathaniel & Renard, Francois (2021). Direct and Indirect Nucleation of Magnetite Nanoparticles from Solution Revealed by Time-Resolved Raman Spectroscopy. Crystal Growth & Design.  ISSN 1528-7483. . doi: 10.1021/acs.cgd.1c00282
• Vincent-Dospital, Tom; Steyer, Alain; Renard, Francois & Toussaint, Renaud (2021). Frictional anisotropy of 3D-printed fault surfaces. Frontiers in Earth Science.  ISSN 2296-6463. . doi: 10.3389/feart.2021.627823 Fulltekst i vitenarkiv. Vis sammendrag

  The surface morphology of faults controls the spatial anisotropy of their frictional properties, and hence their mechanical stability. Such anisotropy is only rarely studied in seismology models of fault slip, although it might be paramount to understand the seismic rupture in particular areas, notably where slip occurs in a direction different from that of the main striations of the fault. To quantify how the anisotropy of fault surfaces affects the friction coefficient during sliding, we sheared synthetic fault planes made of plaster of Paris. These fault planes were produced by 3D-printing real striated fault surfaces whose 3D roughness was measured in the field at spatial scales from millimeters to meters. Here, we show how the 3D-printing technology can help for the study of frictional slip. Results show that fault anisotropy controls the coefficient of static friction, with the friction coefficient along the striations being three to four times smaller than the friction coefficient along the orientation perpendicular to the striations. This is true both at the meter and the millimeter scales. The anisotropy in friction and the average coefficient of static friction are also shown to decrease with the normal stress applied to the faults, as a result of the increased surface wear under increased loading.

• Chauve, Thomas; Scholtes, Luc; Donzé, Frédéric-Victor; Mondol, Nazmul Haque & Renard, Francois (2020). Layering in shales controls microfracturing at the onset of primary migration in source rocks. Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  125(5) . doi: 10.1029/2020JB019444 Fulltekst i vitenarkiv. Vis sammendrag

  The process of primary migration, which controls the transfer of hydrocarbons from source to reservoir rocks, necessitates the existence of fluid pathways in low permeability sedimentary formations. Primary migration starts with the maturation of organic matter that produces fluids which increase the effective stress locally. The interactions between local fluid production, microfracturing, stress conditions, and transport remain difficult to apprehend in shale source rocks. Here, we analyze these interactions using a coupled hydro‐mechanical numerical model based on the discrete element method. The model is used to simulate the effects of fluid production emanating from kerogen patches contained within a shale rock alternating kerogen‐poor and kerogen‐rich layers. We identify two microfracturing mechanisms that control fluid migration: i) propagation of hydraulically driven fractures induced by kerogen maturation in kerogen‐rich layers, and ii) compression induced fracturing in kerogen‐poor layers caused by fluid overpressurization of the surrounding kerogen‐rich layers. The relative importance of these two mechanisms is discussed considering different elastic properties contrasts between the shale layers, as well as various stress conditions encountered in sedimentary basins, from normal to reverse faulting regimes. The layering in shales causes local stress redistribution that controls the prevalence of each mechanism over the other and the onset of microfracturing during kerogen maturation. Results are applied to the Draupne formation, a major source rock in the Norwegian continental shelf in the North Sea.

• Chavez Panduro, Elvia Anabela; Cordonnier, Benoit; Gawel, Kamila; Børve, Ingrid; Iyer, Jaisree; Carroll, Susan; Michels Brito Miranda, Leander Edward; Rogowska, Melania; McBeck, Jessica Ann; Sørensen, Henning Osholm; Walsh, Stuart D.C.; Renard, Francois; Gibaud, Alain; Torsæter, Malin & Breiby, Dag Werner (2020). Real time 3D observations of Portland Cement Carbonation at CO2 storage conditions. Environmental Science and Technology.  ISSN 0013-936X.  54(13), s 8323- 8332 . doi: 10.1021/acs.est.0c00578 Fulltekst i vitenarkiv. Vis sammendrag

  Depleted oil reservoirs are considered a viable solution to the global challenge of CO2 storage. A key concern is whether the wells can be suitably sealed with cement to hinder the escape of CO2. Under reservoir conditions, CO2 is in its supercritical state, and the high pressures and temperatures involved make real-time microscopic observations of cement degradation experimentally challenging. Here, we present an in situ 3D dynamic X-ray micro computed tomography (μ-CT) study of well cement carbonation at realistic reservoir stress, pore-pressure, and temperature conditions. The high-resolution time-lapse 3D images allow monitoring the progress of reaction fronts in Portland cement, including density changes, sample deformation, and mineral precipitation and dissolution. By switching between flow and nonflow conditions of CO2-saturated water through cement, we were able to delineate regimes dominated by calcium carbonate precipitation and dissolution. For the first time, we demonstrate experimentally the impact of the flow history on CO2 leakage risk for cement plugging. In-situ μ-CT experiments combined with geochemical modeling provide unique insight into the interactions between CO2 and cement, potentially helping in assessing the risks of CO2 storage in geological reservoirs.

• Guren, Marthe Grønlie; Putnis, Christine V; Montes-Hernandez, German; King, Helen E. & Renard, Francois (2020). Direct imaging of coupled dissolution-precipitation and growth processes on calcite exposed to chromium-rich fluids. Chemical Geology.  ISSN 0009-2541.  552 . doi: 10.1016/j.chemgeo.2020.119770 Fulltekst i vitenarkiv.
• Heap, Michael; Baud, Patrick; McBeck, Jessica Ann; Renard, Francois; Carbillet, Lucille & Hall, Stephan A. (2020). Imaging strain localisation in porous andesite using digital volume correlation. Journal of Volcanology and Geothermal Research.  ISSN 0377-0273.  404 . doi: 10.1016/j.jvolgeores.2020.107038 Fulltekst i vitenarkiv.
• Kartal, Muhammet; Xia, Fang; Ralph, David; Rickard, William D.A.; Renard, Francois & Li, Wei (2020). Enhancing chalcopyrite leaching by tetrachloroethylene-assisted removal of sulphur passivation and the mechanism of jarosite formation. Hydrometallurgy.  ISSN 0304-386X.  191 . doi: 10.1016/j.hydromet.2019.105192 Fulltekst i vitenarkiv.
• Kirilova, Martina; Toy, Virginia; Sauer, Katrina; Renard, Francois; Gessner, Klaus; Wirth, Richard; Xiao, Xianghui & Matsumura, Risa (2020). Micro- And nano-porosity of the active Alpine Fault zone, New Zealand. Solid Earth (SE).  ISSN 1869-9510.  11(6), s 2425- 2438 . doi: 10.5194/se-11-2425-2020 Fulltekst i vitenarkiv.
• McBeck, Jessica Ann; Aiken, John Mark; Ben-Zion, Yehuda & Renard, Francois (2020). Predicting the proximity to macroscopic failure using local strain populations from dynamic in situ X-ray tomography triaxial compression experiments on rocks. Earth and Planetary Science Letters.  ISSN 0012-821X.  543 . doi: 10.1016/j.epsl.2020.116344 Fulltekst i vitenarkiv.
• McBeck, Jessica Ann; Aiken, John Mark; Mathiesen, Joachim; Ben-Zion, Yehuda & Renard, Francois (2020). Deformation precursors to catastrophic failure in rocks. Geophysical Research Letters.  ISSN 0094-8276.  47(24) . doi: 10.1029/2020GL090255 Fulltekst i vitenarkiv.
• McBeck, Jessica Ann; Ben-Zion, Yehuda & Renard, Francois (2020). The mixology of precursory strain partitioning approaching brittle failure in rocks. Geophysical Journal International.  ISSN 0956-540X.  221(3), s 1856- 1872 . doi: 10.1093/GJI/GGAA121 Fulltekst i vitenarkiv.
• McBeck, Jessica Ann; Cooke, Michele & Renard, Francois (2020). How the energy budget scales from the laboratory to the crust in accretionary wedges. Earth and Planetary Science Letters.  ISSN 0012-821X.  541 . doi: 10.1016/j.epsl.2020.116276
• Montes-Hernandez, German & Renard, Francois (2020). Nucleation of Brushite and Hydroxyapatite from Amorphous Calcium Phosphate Phases Revealed by Dynamic in Situ Raman Spectroscopy. Journal of Physical Chemistry C.  ISSN 1932-7447.  124(28), s 15302- 15311 . doi: 10.1021/acs.jpcc.0c04028 Fulltekst i vitenarkiv.
• Montes-Hernandez, German; Renard, Francois; Auzende, Anne Line & Findling, Nathaniel (2020). Amorphous Calcium–Magnesium Carbonate (ACMC) Accelerates Dolomitization at Room Temperature under Abiotic Conditions. Crystal Growth & Design.  ISSN 1528-7483.  20(3), s 1434- 1441 . doi: 10.1021/acs.cgd.9b01005 Fulltekst i vitenarkiv.
• Renard, Francois; Kandula, Neelima; McBeck, Jessica Ann & Cordonnier, Benoit (2020). Creep Burst Coincident With Faulting in Marble Observed in 4-D Synchrotron X-Ray Imaging Triaxial Compression Experiments. Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  125 . doi: 10.1029/2020JB020354 Fulltekst i vitenarkiv.
• Renard, Francois; McBeck, Jessica Ann & Cordonnier, Benoit (2020). Competition between slow slip and damage on and off faults revealed in 4D synchrotron imaging experiments. Tectonophysics.  ISSN 0040-1951.  782-783 . doi: 10.1016/j.tecto.2020.228437 Fulltekst i vitenarkiv.
• Cordonnier, Benoit; Pluymakers, Anne Marie Henriette; Tengattini, Alessandro; Marti, Sina; Kaestner, Anders; Fusseis, Florian & Renard, Francois (2019). Neutron Imaging of Cadmium Sorption and Transport in Porous Rocks. Frontiers in Earth Science.  ISSN 2296-6463.  7, s 1- 11 . doi: 10.3389/feart.2019.00306 Fulltekst i vitenarkiv.
• Zhang, Lingran; Nasika, Christina; Donzé, Frédéric-Victor; Zheng, Xiaojiao; Renard, Francois & Scholtès, Luc (2019). Modeling Porosity Evolution Throughout Reaction‐Induced Fracturing in Rocks With Implications for Serpentinization. Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  124(6), s 5708- 5733 . doi: 10.1029/2018JB016872
• Zheng, Xiaojiao; Cordonnier, Benoit; McBeck, Jessica Ann; Boller, Elodie; Jamtveit, Bjørn; Zhu, Wenlu & Renard, Francois (2019). Mixed‐mode strain localization generated by hydration reaction at crustal conditions. Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  124(5), s 4507- 4522 . doi: 10.1029/2018JB017008 Fulltekst i vitenarkiv.
• Aslan, G; Cakir, Ziyadin; Lasserre, Cécile & Renard, Francois (2019). Investigating subsidence in the Bursa Plain, Turkey, using ascending and descending sentinel-1 satellite data. Remote Sensing.  ISSN 2072-4292.  11(1) . doi: 10.3390/rs11010085 Fulltekst i vitenarkiv.
• Aslan, Gokhan; Lasserre, Cécile; Cakir, Ziyadin; Ergintav, Semih; Ozarpaci, Seda; Dogan, Ugur; Bilham, Roger & Renard, Francois (2019). Shallow Creep Along the 1999 Izmit Earthquake Rupture (Turkey) From GPS and High Temporal Resolution Interferometric Synthetic Aperture Radar Data (2011-2017). Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  124(2), s 2218- 2236 . doi: 10.1029/2018JB017022
• Huang, Lingcao; Baud, Patrick; Cordonnier, Benoit; Renard, Francois; Liu, Lin & Wong, Teng-fong (2019). Synchrotron X-ray imaging in 4D: Multiscale failure and compaction localization in triaxially compressed porous limestone. Earth and Planetary Science Letters.  ISSN 0012-821X.  528 . doi: 10.1016/j.epsl.2019.115831 Fulltekst i vitenarkiv.
• Incel, Sarah; Labrousse, Loic; Hilairet, Nadège; John, Timm; Gasc, Julien; Shi, Feng; Wang, Yanbin; Andersen, Torgeir Bjørge; Renard, Francois; Jamtveit, Bjørn & Schubnel, Alexandre (2019). Reaction -induced embrittlementog the lower continental crust. Geology.  ISSN 0091-7613.  47(3), s 235- 238 . doi: 10.1130/G45527.1 Vis sammendrag

  Field observations and geophysical data reveal a causal link between brittle seismic failure and eclogitization of the lower continental crust. We present results from experimental deformation of plagioclase-rich samples at eclogite-facies conditions and quantify the link between rock rheology and the kinetics of the eclogitization reactions. The deformation was ductile both in the absence of reaction and when the progress of eclogitization was fast compared to the imposed strain rate. However, when the reaction rate was relatively slow, the breakdown of plagioclase into nanocrystalline reaction products induced a weakening that triggered seismic failure. Fluid-induced plagioclase breakdown under eclogite- facies conditions is an exothermic reaction accompanied by a negative change in solid volume. This is similar to other mineral transformations that are known to trigger transformational faulting. We demonstrate that mineral reactions lead to brittle deformation in situations where reaction rates are slow compared to the deformation rate. This reaction-induced instability may provide a generic mechanism for embrittlement at depths beyond the normal seismogenic zone.

• Incel, Sarah; Schubnel, Alexandre; Renner, Jörg; John, Timm; Labrousse, Loic; Hilairet, Nadège; Freeman, Helen; Wang, Yanbin; Renard, Francois & Jamtveit, Bjørn (2019). Experimental evidence for wall-rock pulverization during dynamic rupture at ultra-high pressure conditions. Earth and Planetary Science Letters.  ISSN 0012-821X.  528, s 1- 10 . doi: 10.1016/j.epsl.2019.115832 Fulltekst i vitenarkiv.
• Jamtveit, Bjørn; Petley-Ragan, Arianne Juliette; Incel, Sarah; Dunkel, Kristina G; Aupart, Claire Olga Maryse; Austrheim, Håkon Olaf; Corfu, Fernando; Menegon, Luca & Renard, Francois (2019). The effects of earthquakes and fluids on the metamorphism of the lower continental crust. Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  124(8), s 7725- 7755 . doi: 10.1029/2018JB016461 Fulltekst i vitenarkiv.
• Johnson, James Ronald; Hansen, Jørgen André; Renard, Francois & Mondol, Nazmul Haque (2019). Geomechanical Analysis of Maturation for the Draupne Shale, Offshore Norway, In  6th EAGE Shale Workshop 2019, Bordequx, France 28 April - 1 May 2019.  European Association of Geoscientists and Engineers (EAGE).  ISBN 978-1-5108-8666-7.  Mo P05. Vis sammendrag

  Understanding maturation of source rock is increasingly of interest in both conventional and unconventional plays. Shale diagenesis and hydrocarbon generation in shales has a direct relationship with the evolution of the mechanics of maturation. The Draupne Formation, a world class source rock, which stretches over a broad range of depths and maturity, provides the ideal candidate to study the interplay between maturation and geomechanical parameters. Wireline logs and Rock-Eval data from eight wells were used to analyse how seismic waves and rock strength interplays with the source rock shales. Results reveal that the Draupne shale behaves typically in terms of maturation, however the relationship between maturation and geomechanics counters the common trend for shale. There are a wide variety of factors that could impact the geomechanical trends, including but not limited to, lithology, mineralogy, pressure, temperature, fluid content, diagenesis, compaction, fracture density, and organic content. This paper identifies key relationships between geomechanical parameters and a number of these factors, while identifying further work that could be carried out in other areas. This further highlights the importance of in-depth play fairway analysis and presents questions that require answers for successful exploration and exploitation of hydrocarbon

• Johnson, James Ronald; Hansen, Jørgen André; Renard, Francois & Mondol, Nazmul Haque (2019). Modeling maturation, elastic, and geomechanical properties of the Draupne Formation, Offshore Norway. SEG technical program expanded abstracts.  ISSN 1949-4645.  s 3245- 3249 . doi: 10.1190/segam2019-3215340.1 Fulltekst i vitenarkiv. Vis sammendrag

  Understanding shale’s geomechanical and elastic properties is critical to success in conventional and unconventional plays. This understanding provides a framework for the safe extraction of hydrocarbons as well as a guide to mapping favorable source locations. The Upper Jurassic Draupne shale in the North Sea is a world class organicrich source rock, a commendable seal for both hydrocarbon and possibly CO2, and potentially a future reservoir. As such, the Draupne Formation is an ideal candidate to study the modeling of maturation as they relate to both elastic and geomechanical properties.

• Kaduri, Maor; Gratier, Jean-Pierre; Lasserre, Cécile; Cakir, Ziyadin & Renard, Francois (2019). Quantifying the Partition Between Seismic and Aseismic Deformation Along Creeping and Locked Sections of the North Anatolian Fault, Turkey. Pure and Applied Geophysics (PAGEOPH).  ISSN 0033-4553.  176(3), s 1293- 1321 . doi: 10.1007/s00024-018-2027-2 Fulltekst i vitenarkiv.
• Kandula, Neelima; Cordonnier, Benoit; Boller, Elodie; Weiss, Jérôme; Dysthe, Dag Kristian & Renard, Francois (2019). Dynamics of microscale precursors during brittle compressive failure in Carrara marble. Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  124(6), s 6121- 6139 . doi: 10.1029/2019JB017381 Fulltekst i vitenarkiv.
• McBeck, Jessica Ann; Cordonnier, Benoit; Mair, Karen & Renard, Francois (2019). The evolving energy budget of experimental faults within continental crust: Insights from in situ dynamic X-ray microtomography. Journal of Structural Geology.  ISSN 0191-8141.  123, s 42- 53 . doi: 10.1016/j.jsg.2019.03.005 Fulltekst i vitenarkiv.
• McBeck, Jessica Ann; Cordonnier, Benoit; Vinciguerra, Sergio & Renard, Francois (2019). Volumetric and Shear Strain Localization in Mt. Etna Basalt. Geophysical Research Letters.  ISSN 0094-8276.  46(5), s 2425- 2433 . doi: 10.1029/2018GL081299 Fulltekst i vitenarkiv.
• McBeck, Jessica Ann; Kandula, Neelima; Aiken, John Mark; Cordonnier, Benoit & Renard, Francois (2019). Isolating the factors that govern fracture development in rocks throughout dynamic in situ X-ray tomography experiments. Geophysical Research Letters.  ISSN 0094-8276.  46(20), s 11127- 11135 . doi: 10.1029/2019GL084613 Fulltekst i vitenarkiv.
• McBeck, Jessica Ann; Mair, Karen & Renard, Francois (2019). How Porosity Controls Macroscopic Failure via Propagating Fractures and Percolating Force Chains in Porous Granular Rocks. Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  124(9), s 9920- 9939 . doi: 10.1029/2019JB017825
• McBeck, Jessica Ann; Mair, Karen & Renard, Francois (2019). Linking macroscopic failure with micromechanical processes in layered rocks: How layer orientation and roughness control macroscopic behavior. Tectonophysics.  ISSN 0040-1951.  750, s 229- 242 . doi: 10.1016/j.tecto.2018.11.016 Fulltekst i vitenarkiv.
• Montes-Hernandez, German; Bah, Mahamadou Diouma & Renard, Francois (2019). Mechanism of the formation of engineered magnesite: A critical mineral to mitigate CO2 industrial emissions. Journal of CO2 Utilization.  ISSN 2212-9820.  35, s 272- 276 . doi: 10.1016/j.jcou.2019.10.006 Fulltekst i vitenarkiv.
• Panahi, Hamed; Kobchenko, Maya; Meakin, Paul; Dysthe, Dag Kristian & Renard, Francois (2019). Fluid expulsion and microfracturing during the pyrolysis of an organic rich shale. Fuel.  ISSN 0016-2361.  235, s 1- 16 . doi: 10.1016/j.fuel.2018.07.069 Fulltekst i vitenarkiv.
• Petley-Ragan, Arianne Juliette; Ben-Zion, Yehuda; Austrheim, Håkon Olaf; Ildefonse, Benoit; Renard, Francois & Jamtveit, Bjørn (2019). Dynamic earthquake rupture in the lower crust. Science Advances.  ISSN 2375-2548.  5(7) . doi: 10.1126/sciadv.aaw0913 Fulltekst i vitenarkiv.
• Renard, Francois; McBeck, Jessica Ann; Cordonnier, Benoit; Zheng, Xiaojiao; Kandula, Neelima; Sanchez, Jesus Rodriguez; Kobchenko, Maya; Noiriel, Catherine; Zhu, Wenlu; Meakin, Paul; Fusseis, Florian & Dysthe, Dag Kristian (2019). Dynamic In Situ Three-Dimensional Imaging and Digital Volume Correlation Analysis to Quantify Strain Localization and Fracture Coalescence in Sandstone. Pure and Applied Geophysics (PAGEOPH).  ISSN 0033-4553.  176, s 1083- 1115 . doi: 10.1007/s00024-018-2003-x Fulltekst i vitenarkiv.
• Renard, Francois; McBeck, Jessica Ann; Kandula, Neelima; Cordonnier, Benoit; Meakin, Paul & Ben-Zion, Yehuda (2019). Volumetric and shear processes in crystalline rock approaching faulting. Proceedings of the National Academy of Sciences of the United States of America.  ISSN 0027-8424.  116(33), s 16234- 16239 . doi: 10.1073/pnas.1902994116 Fulltekst i vitenarkiv.
• Thøgersen, Kjetil; Sveinsson, Henrik Andersen; Amundsen, David Skålid; Scheibert, Julien; Renard, Francois & Malthe-Sørenssen, Anders (2019). Minimal model for slow, sub-Rayleigh, supershear, and unsteady rupture propagation along homogeneously loaded frictional interfaces. Physical review. E.  ISSN 2470-0045.  100(4) . doi: 10.1103/PhysRevE.100.043004 Fulltekst i vitenarkiv.
• Thøgersen, Kjetil; Sveinsson, Henrik Andersen; Scheibert, Julien; Renard, Francois & Malthe-Sørenssen, Anders (2019). The Moment Duration Scaling Relation for Slow Rupture Arises From Transient Rupture Speeds. Geophysical Research Letters.  ISSN 0094-8276.  46(22), s 12805- 12814 . doi: 10.1029/2019GL084436 Fulltekst i vitenarkiv.
• Pluymakers, Anne Marie Henriette; Liu, J.; Kohler, Felix; Renard, Francois & Dysthe, Dag Kristian (2018). A high resolution interferometric method to measure local swelling due to CO2 exposure in coal and shale. International Journal of Coal Geology.  ISSN 0166-5162.  187, s 131- 142 . doi: 10.1016/j.coal.2018.01.007 Fulltekst i vitenarkiv.
• Aslan, G; Cakir, Ziyadin; Ergintav, Semih; Lasserre, Cécile & Renard, Francois (2018). Analysis of secular ground motions in istanbul from a long-term InSAR time-series (1992-2017). Remote Sensing.  ISSN 2072-4292.  10(3) . doi: 10.3390/rs10030408 Fulltekst i vitenarkiv.
• Clerc, Adriane; Renard, Francois; Austrheim, Håkon Olaf & Jamtveit, Bjørn (2018). Spatial and size distributions of garnets grown in a pseudotachylyte generated during a lower crust earthquake. Tectonophysics.  ISSN 0040-1951.  733, s 159- 170 . doi: 10.1016/j.tecto.2018.02.014 Fulltekst i vitenarkiv.
• Heap, Michael; Reuschle, Thierry; Baud, Patrick; Renard, Francois & Iezzi, Gianluca (2018). The permeability of stylolite-bearing limestone. Journal of Structural Geology.  ISSN 0191-8141.  116, s 81- 93 . doi: 10.1016/j.jsg.2018.08.007 Fulltekst i vitenarkiv.
• Jamtveit, Bjørn; Ben-Zion, Yehuda; Renard, Francois & Austrheim, Håkon Olaf (2018). Earthquake-induced transformation of the lower crust. Nature.  ISSN 0028-0836.  556(7702), s 487- 491 . doi: 10.1038/s41586-018-0045-y Fulltekst i vitenarkiv.
• Lafay, Romain; Montes-Hernandez, German; Renard, Francois & Vonlanthen, Pierre (2018). Intracrystalline reaction-induced cracking in olivine evidenced by hydration and carbonation experiments. Minerals.  ISSN 2075-163X.  8(9) . doi: 10.3390/min8090412 Fulltekst i vitenarkiv.
• McBeck, Jessica Ann; Kobchenko, Maya; Hall, Stephen; Tudisco, Erika; Cordonnier, Benoit; Meakin, Paul & Renard, Francois (2018). Investigating the Onset of Strain Localization Within Anisotropic Shale Using Digital Volume Correlation of Time-Resolved X-Ray Microtomography Images. Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  123(9), s 7509- 7528 . doi: 10.1029/2018JB015676 Fulltekst i vitenarkiv.
• Panahi, Hamed; Kobchenko, Maya; Meakin, Paul; Dysthe, Dag Kristian & Renard, Francois (2018). In-situ imaging of fracture development during maturation of an organic-rich shale: Effects of heating rate and confinement. Marine and Petroleum Geology.  ISSN 0264-8172.  95, s 314- 327 . doi: 10.1016/j.marpetgeo.2018.05.002 Fulltekst i vitenarkiv.
• Renard, Francois; Putnis, Christine V; Montes-Hernandez, German; King, Helen E.; Breedveld, Gijs D. & Okkenhaug, Gudny (2018). Sequestration of Antimony on Calcite Observed by Time-Resolved Nanoscale Imaging. Environmental Science and Technology.  ISSN 0013-936X.  52(1), s 107- 113 . doi: 10.1021/acs.est.7b04727 Fulltekst i vitenarkiv. Vis sammendrag

  Antimony, which has damaging effects on the human body and the ecosystem, can be released into soils, ground-, and surface waters either from ore minerals that weather in near surface environments, or due to anthropogenic releases from waste rich in antimony, a component used in batteries, electronics, ammunitions, plastics, and many other industrial applications. Here, we show that dissolved Sb can interact with calcite, a widespread carbonate mineral, through a coupled dissolution–precipitation mechanism. The process is imaged in situ, at room temperature, at the nanometer scale by using an atomic force microscope equipped with a flow-through cell. Time-resolved imaging allowed following the coupled process of calcite dissolution, nucleation of precipitates at the calcite surface and growth of these precipitates. Sb(V) forms a precipitate, whereas Sb(III) needs to be oxidized to Sb(V) before being incorporated in the new phase. Scanning-electron microscopy and Raman spectroscopy allowed identification of the precipitates as two different calcium–antimony phases (Ca2Sb2O7). This coupled dissolution–precipitation process that occurs in a boundary layer at the calcite surface can sequester Sb as a solid phase on calcite, which has environmental implications as it may reduce the mobility of this hazardous compound in soils and groundwaters.

• Renard, Francois; Røyne, Anja & Putnis, Christine V (2018). Timescales of interface-coupled dissolution-precipitation reactions on carbonates. Geoscience Frontiers.  ISSN 1674-9871.  10, s 10- 27 . doi: 10.1016/j.gsf.2018.02.013 Fulltekst i vitenarkiv.
• Renard, Francois; Weiss, Jérôme; Mathiesen, Joachim; Ben-Zion, Yehuda; Kandula, Neelima & Cordonnier, Benoit (2018). Critical Evolution of Damage Toward System-Size Failure in Crystalline Rock. Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  123(2), s 1969- 1986 . doi: 10.1002/2017JB014964 Fulltekst i vitenarkiv.
• Toussaint, Renaud; Aharonov, Einat; Koehn, Daniel; Gratier, Jean-Pierre; Ebner, Martin; Baud, Patrick; Rolland, Alexandra & Renard, Francois (2018). Stylolites: A review. Journal of Structural Geology.  ISSN 0191-8141.  114, s 163- 195 . doi: 10.1016/j.jsg.2018.05.003 Fulltekst i vitenarkiv.
• Zheng, Xiaojiao; Cordonnier, Benoit; Zhu, Wenlu; Renard, Francois & Jamtveit, Bjørn (2018). Effects of Confinement on Reaction-Induced Fracturing During Hydration of Periclase. Geochemistry Geophysics Geosystems.  ISSN 1525-2027.  19(8), s 2661- 2672 . doi: 10.1029/2017GC007322 Fulltekst i vitenarkiv.
• Aben, F.M.; Doan, M.-L.; Gratier, JP & Renard, Francois (2017). High strain rate deformation of porous sandstone and the asymmetry of earthquake damage in shallow fault zones. Earth and Planetary Science Letters.  ISSN 0012-821X.  463, s 81- 91 . doi: 10.1016/j.epsl.2017.01.016 Fulltekst i vitenarkiv.
• Aben, F.M.; Doan, ML; Gratier, JP & Renard, Francois (2017). Experimental postseismic recovery of fractured rocks assisted by calcite sealing. Geophysical Research Letters.  ISSN 0094-8276.  44(14), s 7228- 7238 . doi: 10.1002/2017GL073965 Fulltekst i vitenarkiv.
• Dumazer, Guillaume Henri; Flekkøy, Eirik Grude; Renard, Francois & Angheluta, Luiza (2017). Transient anomalous diffusion regimes in reversible adsorbing systems. Physical review. E.  ISSN 2470-0045.  96(4) . doi: 10.1103/PhysRevE.96.042106
• Dunkel, Kristina G; Austrheim, Håkon Olav; Renard, Francois; Cordonnier, Benoit & Jamtveit, Bjørn (2017). Localized slip controlled by dehydration embrittlement of partly serpentinized dunites, Leka Ophiolite Complex, Norway. Earth and Planetary Science Letters.  ISSN 0012-821X.  463, s 277- 285 . doi: 10.1016/j.epsl.2017.01.047 Fulltekst i vitenarkiv.
• Kaduri, Maor; Gratier, Jean-Pierre; Renard, Francois; Cakir, Ziyadin & Lasserre, Cécile (2017). The implications of fault zone transformation on aseismic creep: Example of the North Anatolian Fault, Turkey. Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  122(6), s 4208- 4236 . doi: 10.1002/2016JB013803 Fulltekst i vitenarkiv.
• Linga, Gaute; Mathiesen, Joachim & Renard, Francois (2017). Self-similar distributions of fluid velocity and stress heterogeneity in a dissolving porous limestone. Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  122(3), s 1726- 1743 . doi: 10.1002/2016JB013536 Fulltekst i vitenarkiv.
• Pluymakers, Anne Marie Henriette; Kobchenko, Maya & Renard, Francois Marie Paul L (2017). How microfracture roughness can be used to distinguish between exhumed cracks and in-situ flow paths in shales. Journal of Structural Geology.  ISSN 0191-8141.  94, s 87- 97 . doi: 10.1016/j.jsg.2016.11.005 Fulltekst i vitenarkiv.
• Renard, Francois; Cordonnier, Benoit; Kobchenko, Maya; Kandula, Neelima; Weiss, Jérôme & Zhu, Wenlu (2017). Microscale characterization of rupture nucleation unravels precursors to faulting in rocks. Earth and Planetary Science Letters.  ISSN 0012-821X.  476, s 69- 78 . doi: 10.1016/j.epsl.2017.08.002 Fulltekst i vitenarkiv.
• Renard, Francois; Putnis, Christine V; Montes-Hernandez, German & King, Helen E. (2017). Siderite dissolution coupled to iron oxyhydroxide precipitation in the presence of arsenic revealed by nanoscale imaging. Chemical Geology.  ISSN 0009-2541.  449, s 123- 134 . doi: 10.1016/j.chemgeo.2016.12.001 Fulltekst i vitenarkiv.
• Teixeira, Marcello Goulart; Donze, Frederic; Renard, Francois; Panahi, Hamed; Papachristos, Efthymios & Scholtes, Luc (2017). Microfracturing during primary migration in shales. Tectonophysics.  ISSN 0040-1951.  694, s 268- 279 . doi: 10.1016/j.tecto.2016.11.010 Fulltekst i vitenarkiv.
• Toy, Virginia G; Niemeijer, Andre; Renard, Francois; Morales, Luiz & Wirth, Richard (2017). Striation and slickenline development on quartz fault surfaces at crustal conditions: Origin and effect on friction. Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  122(5), s 3497- 3512 . doi: 10.1002/2016JB013498 Fulltekst i vitenarkiv.
• Aben, F.M.; Doan, ML; Mitchell, T.M.; Toussaint, Renaud; Reuschle, T.; Fondriest, Michele; Gratier, Jean-Pierre & Renard, Francois Marie Paul L (2016). Dynamic fracturing by successive coseismic loadings leads to pulverization in active fault zones. Journal of Geophysical Research (JGR): Biogeosciences.  ISSN 2169-8953.  121(4), s 2338- 2360 . doi: 10.1002/2015JB012542
• Bergsaker, Anne Schad; Røyne, Anja; Ougier-Simonin, Audrey; Aubry, Jérôme & Renard, Francois Marie Paul L (2016). The effect of fluid composition, salinity, and acidity on subcritical crack growth in calcite crystals. Journal of Geophysical Research (JGR): Biogeosciences.  ISSN 2169-8953.  121(3), s 1631- 1651 . doi: 10.1002/2015JB012723 Fulltekst i vitenarkiv.
• Colon, Cindy; Webb, A Alexander G; Lasserre, Cécile; Doin, Marie-Pierre; Renard, Francois Marie Paul L; Lohman, Rowena; Li, Jianghai & Baudoin, Patrick F (2016). The variety of subaerial active salt deformations in the Kuqa fold-thrust belt (China) constrained by InSAR. Earth and Planetary Science Letters.  ISSN 0012-821X.  450, s 83- 95 . doi: 10.1016/j.epsl.2016.06.009
• Hamdouni, Afef; Montes-Hernandez, German; Tlili, Mohamed; Findling, Nathanael; Renard, Francois & Putnis, Christine V (2016). Removal of Fe (II) from groundwater via aqueous portlandite carbonation and calcite-solution interactions. Chemical Engineering Journal.  ISSN 1385-8947.  283, s 404- 411 . doi: 10.1016/j.cej.2015.07.077
• Montes-Hernandez, German; Chiriac, Rodica; Findling, Nathaniel; Toche, François & Renard, Francois (2016). Synthesis of ceria (CeO2 and CeO2−x) nanoparticles via decarbonation and Ce(III) oxydation of synthetic bastnäsite (CeCO3F). Materials Chemistry and Physics.  ISSN 0254-0584.  172, s 202- 210 . doi: 10.1016/j.matchemphys.2016.01.066
• Montes-Hernandez, German; Findling, Nathaniel & Renard, Francois Marie Paul L (2016). Dissolution-precipitation reactions controlling fast formation of dolomite under hydrothermal conditions. Applied Geochemistry.  ISSN 0883-2927.  73, s 169- 177 . doi: 10.1016/j.apgeochem.2016.08.011
• Montes-Hernandez, German & Renard, Francois (2016). Time-Resolved in Situ Raman Spectroscopy of the Nucleation and Growth of Siderite, Magnesite, and Calcite and Their Precursors. Crystal Growth & Design.  ISSN 1528-7483.  16(12), s 7218- 7230 . doi: 10.1021/acs.cgd.6b01406
• Ougier-Simonin, Audrey; Renard, Francois Marie Paul L; Boehm, Claudine & Vidal-Gilbert, Sandrine (2016). Microfracturing and microporosity in shales. Earth-Science Reviews.  ISSN 0012-8252.  162, s 198- 226 . doi: 10.1016/j.earscirev.2016.09.006
• Pedrosa, E.T.; Putnis, C.V.; Renard, Francois Marie Paul L; Burgos-Cara, A.; Laurich, B. & Putnis, A. (2016). Porosity generated during the fluid-mediated replacement of calcite by fluorite. CrysteEngComm.  ISSN 1466-8033.  18(36), s 6867- 6874 . doi: 10.1039/c6ce01150k
• Renard, Francois Marie Paul L; Cordonnier, Benoit; Dysthe, Dag Kristian; Boller, Elodie; Tafforeau, Paul & Rack, Alexander (2016). A deformation rig for synchrotron microtomography studies of geomaterials under conditions down to 10 km depth in the Earth. Journal of Synchrotron Radiation.  ISSN 0909-0495.  23(4), s 1030- 1034 . doi: 10.1107/S1600577516008730
• Rohmer, Jeremy; Pluymakers, Anne Marie Henriette & Renard, Francois Marie Paul L (2016). Mechano-chemical interactions in sedimentary rocks in the context of CO2 storage: Weak acid, weak effects?. Earth-Science Reviews.  ISSN 0012-8252.  157, s 86- 110 . doi: 10.1016/j.earscirev.2016.03.009
• Rousset, Baptiste; Jolivet, Romain; Simons, Mark; Lasserre, Cécile; Riel, Bryan; Milillo, Pietro; Çakir, Ziyadin & Renard, Francois Marie Paul L (2016). An aseismic slip transient on the North Anatolian Fault. Geophysical Research Letters.  ISSN 0094-8276.  43(7), s 3254- 3262 . doi: 10.1002/2016GL068250
• Weiss, J.; Pellissier, V.; Marsan, D.; Arnaud, L. & Renard, Francois (2016). Cohesion versus friction in controlling the long-term strength of a self-healing experimental fault. Journal of Geophysical Research (JGR): Solid Earth.  ISSN 2169-9313.  121(12), s 8523- 8547 . doi: 10.1002/2016JB013110
• Gratier, Jean-Pierre; Noiriel, Catherine & Renard, Francois (2015). Experimental evidence for rock layering development by pressure solution. Geology.  ISSN 0091-7613.  43(10), s 871- 874 . doi: 10.1130/G36713.1
• Montes-Hernandez, German; Renard, Francois Marie Paul L; Findling, Nathaniel & Auzende, Anne Line (2015). Formation of porous calcite mesocrystals from CO2–H2O–Ca(OH)2 slurry in the presence of common domestic drinks. CrysteEngComm.  ISSN 1466-8033.  17(30), s 5725- 5733 . doi: 10.1039/c4ce01598c
• Renard, Francois Marie Paul L; Putnis, Christine V; Montes-Hernandez, German; Ruiz-Agudo, Encarnacion; Hovelmann, Jörn & Sarret, Géraldine (2015). Interactions of arsenic with calcite surfaces revealed by in situ nanoscale imaging. Geochimica et Cosmochimica Acta.  ISSN 0016-7037.  159, s 61- 79 . doi: 10.1016/j.gca.2015.03.025
• Richard, Julie; Doan, Mai-Linh; Gratier, Jean-Pierre & Renard, Francois Marie Paul L (2015). Microstructures Induced in Porous Limestone by Dynamic Loading, and Fracture Healing: An Experimental Approach. Pure and Applied Geophysics (PAGEOPH).  ISSN 0033-4553.  172(5), s 1269- 1290 . doi: 10.1007/s00024-014-0958-9
• Gratier, Jean-Pierre; Renard, Francois Marie Paul L & Vial, Benjamin (2014). Postseismic pressure solution creep: Evidence and time-dependent change from dynamic indenting experiments. Journal of Geophysical Research (JGR): Biogeosciences.  ISSN 2169-8953.  119(4), s 2764- 2779 . doi: 10.1002/2013JB010768

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• Linga, Gaute; Mathiesen, Joachim; Renard, Francois & Le Borgne, Tanguy (2020). Stretching and Folding in Intermittent Two-Phase Porous Media Flows.
• Madathiparambil, Aldritt Scaria; Chattopadhyay, Basab; Tekseth, Kim Robert Bjørk; Agofack, Nicolaine; Cerasi, Pierre; McBeck, Jessica Ann; Renard, Francois; Gibaud, Alain & Breiby, Dag Werner (2020). Dynamic in situ computed tomography study of strain evolution in Draupne shales under triaxial loading.
• Guren, Marthe Grønlie; Zheng, Xiaojiao; Jamtveit, Bjørn; Hafreager, Anders; Sveinsson, Henrik Andersen; Malthe-Sørenssen, Anders & Renard, Francois (2019). Molecular dynamics simulations of the hydration force and transport properties of a water film during reaction-induced fracturing.
• Aupart, Claire Olga Maryse; Schlindwein, Vera; Ben-Zion, Yehuda; Renard, Francois Marie Paul L & Jamtveit, Bjørn (2019). Fracture network and serpentinization at oceanic spreading ridges: in-situ observations and comparison with a fossilized system.
• Grøvan Aspaas, Andreas; Krautblatter, Michael; Renard, Francois & Etzelmüller, Bernd (2019). Effects of glimmer rich rocks on the failure criterion of ice-filled permafrost rock joints.
• Guren, Marthe Grønlie; Christine, Putnis; Montes-Hernandez, German & Renard, Francois (2019). Atomic force microscopy imaging of coupled dissolution-precipitation on a calcite surface when exposed to a chromium-rich fluid.
• Johnson, James Ronald; Hansen, Jørgen André; Mondol, Nazmul Haque & Renard, Francois (2019). Modeling maturation, elastic, and geomechanical properties of the Draupne Formation, Offshore Norway.
• Johnson, James Ronald; Hansen, Jørgen André; Renard, Francois & Mondol, Nazmul Haque (2019). Geomechanical Analysis of Maturation for the Draupne Shale, Offshore Norway.
• Langet, Nadege; Oye, Volker; Privat, Pierre-Etienne & Renard, Francois (2019). Seismic monitoring of the Åknes rockslope: status and challenges.
• Incel, Sarah; Labrousse, Loic; Hilairet, Nadège; John, Timm; Gasc, Julien; Shi, Feng; Wang, Yanbin; Andersen, Torgeir Bjørge; Renard, Francois; Jamtveit, Bjørn & Schubnel, Alexandre (2018). Reaction-induced faulting in granulite causes earthquakes in the lower continental crust. Vis sammendrag

  Pseudotachylite-networks in granulites on Holsnøy in the Bergen Arcs, SW Norway, and seismic tomography of the Tibetan plateau reveal that earthquakes were triggered even at the high temperature/ high pressure conditions of the lower continental crust. Both, field and geophysical observations, demonstrate a strong link between the nucleation of intermediate-depth earthquakes and areas of partial eclogitization within nominally anhydrous granulitic lower crust. This study presents four deformation experiments performed on granulite samples from Holsnøy. To accelerate reaction kinetics, which is very slow in dry rocks, we applied confining pressures of 2.5-3 GPa and temperatures in the range 995-1225 K, significantly higher than the expected eclogitization conditions of the Bergen Arcs (pressure= 1.5-2 GPa, temperature= 923-973 K). Based on the mechanical data, micro- and nanostructural observations, and recorded acoustic emissions, we were able to correlate the degree of eclogitization to the rheological behavior of the samples. Depending on the net eclogitization rate relative to the deformation rate (5∙10-5 s-1) the sample either behaved strong and ductile if no reaction occurred, mainly brittle when the rate of eclogitization was slow, or mostly weak ductile when the rate of eclogitization was fast. Our experimental results emphasize that shear localization due to grain size reduction triggered by the breakdown of plagioclase under eclogite-facies conditions lead to brittle failure accompanied by acoustic emissions. These and other experiments on a variety of lithologies suggest that there could be one common mechanism that triggers intermediate and deep earthquakes.

• Incel, Sarah; Labrousse, Loic; Hilaret, Nadege; John, Timm; Gase, Julien; Yanbin, Wang; Shi, Feng; Andersen, Torgeir Bjørge; Renard, Francois; Jamtveit, Bjørn & Schubnel, Alexandre (2018). Reaction-induced faulting in granulite: New insights for the generation of intermediate-depth earthquakes in lower continental crust. Vis sammendrag

  Pseudotachylite-networks in granulites on Holsnøy in the Bergen Arcs, SW Norway, and seismic tomography of the Tibetan plateau reveal that earthquakes were triggered even at the high temperature/ high pressure condi- tions of the lower continental crust. Both, field and geophysical observations, demonstrate a strong link between the nucleation of intermediate-depth earthquakes and areas of partial eclogitization within nominally anhydrous granulitic lower crust. This study presents four deformation experiments performed on granulite samples from Holsnøy. To accelerate reaction kinetics, which is very slow in dry rocks, we applied confining pressures of 2.5-3 GPa and temperatures in the range 995-1225 K, significantly higher than the expected eclogitization conditions of the Bergen Arcs (pressure= 1.5-2 GPa, temperature= 923-973 K). Based on the mechanical data, micro- and nanos- tructural observations, and recorded acoustic emissions, we were able to correlate the degree of eclogitization to the rheological behavior of the samples. Depending on the net eclogitization rate relative to the deformation rate (5 ×10−5s−1) the sample either behaved strong and ductile if no reaction occurred, mainly brittle when the rate of eclogitization was slow, or mostly weak ductile when the rate of eclogitization was fast. Our experimental re- sults emphasize that shear localization due to grain size reduction triggered by the breakdown of plagioclase under eclogite-facies conditions lead to brittle failure accompanied by acoustic emissions. These and other experiments on a variety of lithologies suggest that there could be one common mechanism that triggers intermediate and deep earthquakes.

• Sanchez, Jesus Rodriguez; Cordonnier, Benoit; Renard, Francois & Dysthe, Dag Kristian (2016). Transition between brittle and ductile behaviour on carbonate rocks: an X-ray tomographic analysis.
• Dysthe, Dag Kristian; Kobchenko, Maya; Hafver, Andreas; Panahi, Hamed; Jamtveit, Bjørn & Renard, Francois Marie Paul L (2014). Temporal and spatial characteristics of drainage fracture networks in elastic media with internal fluid generation.

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