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  • 1
    Online Resource
    Online Resource
    The Geometry and growth of normal faults (2017)
    London : The Geological Society
    Details Availability
    Keywords: Faults (Geology) ; Aufsatzsammlung ; Störung ; Deformation ; Strukturgeologie ; Verwerfung ; Faltung ; Tektonik ; Rifting ; Störungstektonik ; Rift ; Abschiebung ; Aufsatzsammlung ; Störung ; Deformation ; Strukturgeologie ; Verwerfung ; Faltung ; Tektonik ; Rifting ; Störungstektonik ; Rift ; Abschiebung ; Aufsatzsammlung
    Description / Table of Contents: Normal faults are the primary structures that accommodate extension of the brittle crust. This volume provides an up-to-date overview of current research into the geometry and growth of normal faults. The 23 research papers present the findings of outcrop and subsurface studies of the geometrical evolution of faults from a number of basins worldwide, complemented by analogue and numerical modelling studies of fundamental aspects of fault kinematics. The topics addressed include how fault length changes with displacement, how faults interact with one another, the controls of previous structure on fault evolution and the nature and origin of fault-related folding. This volume will be of interest to those wishing to develop a better understanding of the structural geological aspects of faulting, from postgraduate students to those working in industry
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (vi, 540 Seiten) , Illustrationen, Diagramme, Karten
    Series Statement: Geological Society special publication no. 439
    URL: https://doi.org/10.1144/SP439
    URL: https://sp.lyellcollection.org/content/439/1
    DOI: 10.1144/SP439
    DDC: 551.872
    Language: English
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  • 2
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    Two-phase fluid flow properties of cataclastic fault rocks: Implications for CO2 storage in saline aquifers (2012)
    Geological Society of America (GSA)
    Details
    Publication Date: 2012-01-01
    Description: Fault rocks can function as barriers to subsurface fluid flow and affect the storage of CO2 in geological structures. Even though flow across faults often involves more than one fluid phase, it is typically modeled using only single-phase functions due to a lack of fault rock relative permeability data and complexities in incorporating two-phase flow properties into flow simulations. Here we present two-phase fluid flow data for cataclastic fault rocks in porous sandstone from the 90-Fathom fault (northeast England). The study area represents a field analogue for North Sea saline aquifers of Permian–Triassic age that are currently being considered for CO2 storage. We use the experimental data to populate a synthetic model of a faulted saline aquifer to assess the impact of these fault rocks on CO2 injection. We show that even fault rocks with low clay contents and very limited quartz cementation can act as major baffles to the flow of a non-wetting phase if realistic two-phase properties are taken into account. Consequently, pressure may increase far more rapidly in the storage compartment during CO2 injection than anticipated based on models that only incorporate absolute fault rock permeabilities. To avoid high pressures, which may lead to hydrofracturing and CO2 leakage, either more complex injection strategies need to be adopted or seismic data acquired to ensure the absence of faults in aquifers selected for CO2 storage.
    Print ISSN: 0091-7613
    Electronic ISSN: 1943-2682
    Topics: Geosciences
    Published by Geological Society of America (GSA)
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