Дисертації з теми "Fault damage zones"
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Mitchell, Thomas Matthew. "The fluid flow properties of fault damage zones." Thesis, University of Liverpool, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.485852.
Повний текст джерелаSeverin, Jordan Melvin. "Impact of faults and fault damage zones on large open pit slopes." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/61064.
Повний текст джерелаScience, Faculty of
Earth, Ocean and Atmospheric Sciences, Department of
Graduate
Aben, Frans. "Experimental simulation of the seismic cycle in fault damage zones." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAU012/document.
Повний текст джерелаEarthquakes along large crustal scale faults are a huge hazard threatening large populations. The behavior of such faults is influenced by the fault damage zone that surrounds the fault core. Fracture damage in such fault damage zones influences each stage of the seismic cycle. The damage zone influences rupture mechanics, behaves as a fluid conduit to release pressurized fluids at depth or to give access to reactive fluids to alter the fault core, and facilitates strain during post- and interseismic periods. Also, it acts as an energy sink for earthquake energy. Here, laboratory experiments were performed to come to a better understanding of how this fracture damage is formed during coseismic transient loading, what this fracture damage can tell us about the earthquake rupture conditions along large faults, and how fracture damage is annihilated over time.First, coseismic damage generation, and specifically the formation of pulverized fault damage zone rock, is reviewed. The potential of these pulverized rocks as a coseismic marker for rupture mechanisms is discussed. Although these rocks are promising in that aspect, several open questions remain.One of these open questions is if the transient loading conditions needed for pulverization can be reduced by progressively damaging during many seismic events. The successive high strain rate loadings performed on quartz monzonites using a split Hopkinson pressure bar reveal that indeed the pulverization strain rate threshold is reduced by at least 50%.Another open question is why pulverized rocks are almost always observed in crystalline lithologies and not in more porous rock, even when crystalline and porous rocks are juxtaposed by a fault. To study this observation, high strain rate experiments were performed on porous Rothbach sandstone. The results show that pervasive pulverization below the grain scale, such as observed in crystalline rock, does not occur in the sandstone samples for the explored strain rate range (60-150 s-1). Damage is mainly occurs at a scale superior to that of the scale of the grains, with intragranular deformation occurring only in weaker regions where compaction bands are formed. The competition between inter- and intragranular damage during dynamic loading is explained with the geometric parameters of the rock in combination with two classic micromechanical models: the Hertzian contact model and the pore-emanated crack model. In conclusion, the observed microstructures can form in both quasi-static and dynamic loading regimes. Therefore caution is advised when interpreting the mechanism responsible for near-fault damage in sedimentary rock near the surface. Moreover, the results suggest that different responses of different lithologies to transient loading are responsible for sub-surface damage zone asymmetry.Finally, post-seismic annihilation of coseismic damage by calcite assisted fracture sealing has been studied in experiments, so that the coupling between strengthening and permeability of the fracture network could be studied. A sample-scale fracture network was introduced in quartz monzonite samples, followed exposure to upper crustal conditions and percolation of a fluid saturated with calcite for several months. A large recovery of up to 50% of the initial P-wave velocity drop has been observed after the sealing experiment. In contrast, the permeability remained more or less constant for the duration of the experiment. This lack of coupling between strengthening and permeability in the first stages of sealing is explained by X-ray computed micro tomography. Incipient sealing in the fracture spaces occurs downstream of flow barriers, thus in regions that do not affect the main fluid flow pathways. The decoupling of strength recovery and permeability suggests that shallow fault damage zones can remain fluid conduits for years after a seismic event, leading to significant transformations of the core and the damage zone of faults with time
Wood, Rebekah Erin. "Fault and Fluid Interactions in the Elsinore Fault-West Salton Detachment Fault Damage Zones, Agua Caliente County Park, California." DigitalCommons@USU, 2014. https://digitalcommons.usu.edu/etd/2103.
Повний текст джерелаMichie, Emma A. H. "The influence of damage on the petrophysical properties of carbonate-hosted fault zones." Thesis, University of Aberdeen, 2015. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=227220.
Повний текст джерелаWu, Chunquan. "Fault zone damage, nonlinear site response, and dynamic triggering associated with seismic waves." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41143.
Повний текст джерелаIsaacs, Angela J. "Characterizing Deformation, Damage Parameters, and Clay Composition in Fault Zones: Insights from the Chelungpu Thrust, Taiwan, and Mozumi Right Lateral Fault, Japan." DigitalCommons@USU, 2005. https://digitalcommons.usu.edu/etd/6059.
Повний текст джерелаNishiwaki, Takafumi. "Comparison of Damage Zones of the Nojima and the Asano Faults from the Deep Drilling Project: Differences in Meso-to-microscale Deformation Structures related to Fault Activity." Kyoto University, 2020. http://hdl.handle.net/2433/253096.
Повний текст джерелаDutson, Sarah J. "Effects of Hurricane Fault Architecture on Groundwater Flow in the Timpoweap Canyon of Southwestern, Utah." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd923.pdf.
Повний текст джерелаMayolle, Sylvain. "Croissance des zones d’endommagement de faille : étude structurale en milieu carbonaté et modélisations analogiques." Thesis, Montpellier, 2021. http://www.theses.fr/2021MONTG019.
Повний текст джерелаThe study of faults in the upper crust generates interest in modeling their impact on fluid flow and the mechanical behavior of the earth's crust. Fault damage zones are important structures with multiple implications for resource management and earthquake studies. This thesis aims to characterize the distribution and growth of damage around faults and to study its impact on the Displacement - Damage thickness (D-T) scaling law. Two complementary approaches of field measurements and analog modeling of normal faults are developed to answer this question. This manuscript presents new results of fault damage mapping, D-T scaling in carbonate rocks, and the first analog modeling experiments of fault damage zones. The results show a heterogeneous and asymmetric distribution of damage around faults, mainly influenced by fault interactions during their growth (segmentation, conjugate faults). A D-T law specific to wall damage is established and shows a normal correlation between D and T for less than 100 m of fault displacement, and also confirms the existence of a damage thickness threshold after 100 m of displacement. To explain this law, we propose a damage zone growth model controlled by the interaction and coalescence of fault segments. Analog modeling experiments allowed the description of two new types of damage (graben damage and dip-change link damage), and show a failure mode transition during fault growth, from a segmented dilatational-shear mode to a localized compactional-shear mode. They also demonstrate that initiation of segmentation, segment activity selection, interaction and coalescence processes control the development of fault damage zones and the D-T law. We propose that the thickness of the faulted brittle layer is a main controlling parameter of segmentation, strain localization, and the fault damage thickness threshold observed
Lefèvre, Mélody. "Propriétés structurales, pétro-physiques et circulations de fluides au sein d'une zone de failles dans les argiles." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4320/document.
Повний текст джерелаFault zones concentrate fluids migration and deformations in the upper crust. The shale hydraulic properties make them excellent storage sites and hydrocarbon reservoirs/source rocks. Fault zones can play two roles in the fluid circulation; drains or barriers, in general, both roles are combined within the same fault zone. What are the conditions that promote the fluid circulation along the fault zones in shales and what are the fault zone impacts on the formation properties are relatively poorly explored key questions. This study focused on characterizing the relationships between fault architecture, paleo-fluid as well as current fluid circulations through the analysis of fault calcite mineralization, injection tests and petrophysical properties conducted on a fault zone outcropping underground in the Tournemire research laboratory nested in the Toarcian shale. The fault zone structure was characterized using boreholes data and reconstructed in 3D through modeling to define different deformation facies. No clear facies organization is observed, a fault core and a fault damage zone being difficult to define as it is in hard rocks. The intact, fractured and breccia facies are characterized by a porosity of 9.5-13.5, 10-15 and 13-21%. Large fluid flowrate concentrated along a few “channels” located at the breccia boundaries and in the secondary fault zones that displayed fractured facies and limited breccia fillings. Detailed microstructural and geochemical analysis at the breccia/fractured zones interface revealed that fluids circulated out of the main shear zones, in micro-more or less inherited fractures highlighting a decoupling between fault slip and fluid migrations
Godwin, Steven Benjamin. "Hot Springs Inflow Controlled by the Damage Zone of a Major Normal Fault." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/7724.
Повний текст джерелаMoser, Amy C. "Spatiotemporal Evolution of Pleistocene and Late Oligocene-Early Miocene Deformation in the Mecca Hills, Southernmost San Andreas Fault Zone." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/5992.
Повний текст джерелаWald, Laura Cardon. "Structural Analysis of Rock Canyon Near Provo, Utah." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/844.
Повний текст джерелаDebenham, Natalie. "Characterising the structural, petrophysical, and geochemical properties of inverted fault zones." Thesis, 2019. http://hdl.handle.net/2440/120459.
Повний текст джерелаThesis (Ph.D.) -- University of Adelaide, Australian School of Petroleum (ASP), 2019
Becker, Andrew 1987. "Off-fault Damage Associated with a Localized Bend in the North Branch San Gabriel Fault, California." Thesis, 2012. http://hdl.handle.net/1969.1/148091.
Повний текст джерела"Geologic and Structural Characterization of Shallow Seismic Properties Along The San Jacinto Fault at Sage Brush Flat, Southern California." Master's thesis, 2018. http://hdl.handle.net/2286/R.I.50609.
Повний текст джерелаDissertation/Thesis
Geologic Map of Sage Brush Flat
3D fault zone model of the SJFZ at Sage Brush Flat
Masters Thesis Geological Sciences 2018
Heron, Bretani. "Grain-scale Comminution and Alteration of Arkosic Rocks in the Damage Zone of the San Andreas Fault at SAFOD." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10246.
Повний текст джерелаYu-LinWang and 王鈺淋. "A Study of Building Damage along the Fault as a Reflection of Fault Zone Plan—A Case Study of 921 Earthquake." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/2h33a2.
Повний текст джерелаAyyildiz, Muhammed. "Scales Depencence of Fracture Density and Fabric in the Damage Zone of a Large Displacement Continental Transform Fault." Thesis, 2012. http://hdl.handle.net/1969.1/148095.
Повний текст джерелаCook, Jennie E. "Development of a dilatant damage zone along a thrust relay in a low-porosity quartz arenite." 2005. http://etd.utk.edu/2005/CookJennie.pdf.
Повний текст джерелаLiu, Cheng-Xun, and 劉承勛. "Studies on the pattern of Fault Damage Zone and Fracture Network Analysis in Northeastern Coastal Area of Taiwan." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/8t6kq9.
Повний текст джерела國立臺北科技大學
資源工程研究所
106
The northeastern coast of Taiwan is part of the northern extension of the Hsuehshan Range and has complex geological structures. The strata of Tatungshan formation from the Hsuehshan Range. Along the coast are dominated by drgillite and intercalated with thin layers of gray sandstone or siltstone. In this area, it is subject to regional tectonic action, with well developed fractures on the abrasion platform, which is by many strike-slip faults, resulting in intricate fracture patterns. This study adopts the concept of a fracture network (Sanderson and Nixon, 2015) utilizing the relationship of the fractures in the region to determine the type of fractures; there are different types of branches between nodes. There are six types of branch types and branching patterns, which describe the relationship between different nodes and further the order of development. The fault pattern is based on the geometry of the strike-slip fault zone (Kim et al., 2004). The fault geometry of the translational fault in this region is integrated. It is understood that the fault geometry corresponds to the location of the fault zone. The fractures in each area are staged through the depiction of the aerial photographs. At 113, at 114 and 116 km marks of the coastal road are divided into four stages of cracks; and the 115 km mark is divided into three stages of cracks. The integration of the fault zone can clearly use the fault geometry at different scales to make the comparison of the location of the fault zone; the branch type of this study may be I-I nodes as the first stage, the second stage as the I-Y nodes, the third stage is based on I-X, Y-Y and X-X nodes, and the fourth stage is based on I-Y nodes, where I,X and Y represent isolated, crossing and abutting nodes, repectively.
Coulson, Adam Lee. "Investigation of the Pre to Post Peak Strength State and Behaviour of Confined Rock Masses Using Mine Induced Microseismicity." Thesis, 2009. http://hdl.handle.net/1807/19183.
Повний текст джерела