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Browsing by Author "Childs, Conrad"
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Schöpfer, Martin P. J. ; Childs, Conrad ; Walsh, John J. (American Geophysical Union, 2007)The distinct element method is used for modeling the growth of normal faults in layered sequences. The models consist of circular particles that can be bonded together with breakable cement. Size effects of the model ...
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Schöpfer, Martin P. J. ; Childs, Conrad ; Walsh, John J. (American Geophysical Union, 2007)The growth of normal faults in periodically layered sequences with varying strength contrast and at varying confining pressure is modeled using the Distinct Element Method. The normal faulting models are comprised of strong ...
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Childs, Conrad ; Sylta, Oyvind ; Moriya, S. ; Morewood, Nigel ; Manzocchi, Tom ; Walsh, John J. ; Hermanssen, D. (Elsevier, 2009-06)It is widely acknowledged that fault rock capillary properties are important in controlling the distribution of hydrocarbons in sedimentary basins, and methods exist for predicting the capillary seal capacity of prospect ...
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Childs, Conrad ; Walsh, John J. ; Manzocchi, Tom ; Strand, Julian ; Nicol, Andrew ; Tomasso, Mark ; Schöpfer, Martin P. J. ; Aplin, Andrew C. (Geological Society, London, 2007)Post-depositional normal faults within the turbidite sequence of the Late Miocene Mount Messenger Formation of the Taranaki basin, New Zealand are characterised by granulation and cataclasis of sands and by the smearing ...
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Schöpfer, Martin P. J. ; Childs, Conrad ; Walsh, John J. ; Manzocchi, Tom ; Koyi, Hemin A. (Elsevier, 2007-02)Normal faults contained in multilayers are often characterised by dip refraction which is generally attributed to differences in the mechanical properties of the layers, sometimes leading to different modes of fracture. ...
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Bonson, Chris G. ; Childs, Conrad ; Walsh, John J. ; Schöpfer, Martin P. J. ; Carboni, Vincent (Elsevier, 2007-02)The Maghlaq Fault is a large, left-stepping normal fault (displacement >210 m) cutting the Oligo-Miocene pre- to syn-rift carbonates of SW Malta. Two principal slip zones separate the deformed rocks of the fault zone from ...
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Schöpfer, Martin P. J. ; Abe, Steffen ; Childs, Conrad ; Walsh, John J. (Elsevier, 2009-02)Empirical rock properties and continuum mechanics provide a basis for defining relationships between a variety of mechanical properties, such as strength, friction angle, Young’s modulus, Poisson’s ratio, on the one hand ...
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Schöpfer, Martin P. J. ; Childs, Conrad ; Walsh, John J. (Elsevier, 2006-05)Existing conceptual growth models for faults in layered sequences suggest that faults first localise in strong, and brittle, layers and are later linked in weak, and ductile, layers. We use the Discrete Element Method (DEM) ...
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Schöpfer, Martin P. J. ; Arslan, Arzu ; Walsh, John J. ; Childs, Conrad (Elsevier, 2011-04)Natural and man-made brittle layers embedded in a weaker matrix and subjected to layer-parallel extension typically develop an array of opening-mode fractures with a remarkably regular spacing. This spacing often scales ...
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Manzocchi, Tom ; Walsh, John J. ; Tomasso, Mark ; Strand, Julian ; Childs, Conrad ; Haughton, P. D. W. (Geological Society, London, 2007)A range of unfaulted and faulted bed-scale models with sheet-like bed geometries have been built and analysed in terms of static bed connectivity and fractional permeability assuming permeable sands and impermeable shales. ...
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