Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"Pore fluid pressure"”.
-
Pore fluid pressure detection within the plate boundary fault interface of the Costa Rica convergent margin using AVO attributes
… 3D seismic reflection data to detect elevated pore fluid content and pore fluid pressure along the Costa Rica convergent margin to address dewatering processes of subduction zone sediments. These data provide the highest quality 3D seismic data acquired to date along a convergent margin for …
-
Monitoring induced seismicity near the Wellington oil field, South-Central Kansas
… operations have suggested that injection-related pore fluid pressure increases are inducing the earthquakes. In this investigation, I examine earthquake occurrence in southern Kansas and northern Oklahoma and its relation to the change in pore pressure. The main source of data comes from the …
-
Geomechanical and tectonic investigations into the geologic history of Mars at local, regional, and global scales
… for the wedge material and décollement and the pore fluid pressure ratio were varied between reasonable values for these parameters suggested by terrestrial and Venusian values. The topographic slope of the Thaumasia Highlands was measured from a digital elevation model derived from MOLA …
-
The Causes and Implications of Microstructures in Glacial Sediments
… immobilised shears or hydraulic fractures buffer pore fluid pressure to ~470 kPa. The information from previous chapters is then used to analyse other material from the Yorkshire coast. This analysis confirms the presence in the area of meltout tills that have undergone low strain, as well as …
-
Effect of Heating Rate on Thermally Induced Pore Water Pressure and Crack Evolution in Clay and Shales
… temperature distribution and the evolution of pore pressure under elevated temperatures. Clay shales, characterized by their extensive geological presence and low hydraulic conductivity, carry immense importance across a wide array of applications, including their pivotal role as caprock in oil …
-
3-D seismic characterization of the Niobrara Formation, Silo field, Laramie County, Wyoming
… to regional fault and fracture systems, pore fluid pressure increases due to hydrocarbon generation, and reactivation of pre-existing faults. This study integrated previous work, 3-D seismic, and FMI log analysis in order to determine the nature of faulting and fracturing in Silo Field, …
-
Testing and constitutive modelling of saturated interfaces in dynamic soil-structure interaction.
… Also, a constitutive model for the stress-strain-pore-pressure behavior of cohesive soil interfaces under dynamic loading is developed using the new unified disturbed state concept (DSC). The model is based on elasto-plasticity theory as defined by the hierarchical single surface (HISS) plasticity …
-
Formulation and Implementation of a Constitutive Model for Soft Rock
… is characterized by elastoplasticity, including pore collapse, shear failure, and tensile failure mechanisms; rate-dependence; and pore fluid dependence. The research described in this dissertation was performed with the objectives to formulate a constitutive model which describes all aspects of …
-
3d rheological modelling in the aegean region and its importance for the seismotectonics of the area
… parameters such as the friction coefficient, the pore fluid pressure and the tectonic regime. Prior to the reconstruction of the strength envelopes, a detailed sensitivity analysis on the variability of the input parameters and their influence on the main thermo-rheological modelled properties has …
-
The structural architecture of seismogenic faults, Sierra Nevada, California; implications for earthquake rupture processes
… fission track data, define the temperature and pressure changes associated with cooling and exhumation of the pluton. The P-T conditions prevalent during the deformation history of the GPF fault system are evaluated by relating recrystallisation mechanisms in quartz to temperature, showing that …
-
Causes and Mechanisms of Remagnetisation in Palaeozoic Sedimentary Rocks - a Multidisciplinary Approach
… against a pervasive migration of orogenic fluids on a regional scale as a cause of remagnetisation in the NE Rhenish Massif. While a temporal relationship between clay diagenesis and remagnetisation is observed in Upper Devonian and Lower Carboniferous rocks, the remagnetisation is not …