Interest in the contemporary geodynamic setting of southwestern British Columbia stems from a concern that a large earthquake may impact the major urban centres of the province. Indeed, monitoring of seismic activity in western Canada indicates that numerous smaller magnitude (<M4) intraplate earthquakes affect the southern coastal region annually. and that very small tremors occur daily. Large...

Most of Earth’s volcanism occurs at tectonic plate boundaries associated with subduction or rifting processes. The mantle plume hypothesis is an important supplement to tectonics for explaining some high-volume intraplate volcanic fields. However, many magmatic provinces occur as low-volume, monogenetic basaltic-suite fields that are neither plate-boundary processes nor attributable plumes, and...

The eastern margin of North America has been shaped by a series tectonic events including the Paleozoic Appalachian Orogeny and breakup Pangea during Mesozoic. For past ∼200 Ma, passive continental margin; however, there is evidence in Central Mountains for post-rifting modification lithospheric structure. This includes two co-located pulses magmatism that post-date rifting event (at 152 47 Ma)...

Abstract The Franconian Platform of SE Germany and the underlying Permian Triassic rocks that developed from latest to time were affected by multiple compressional extensional events created a complex fracture, fault stylolite network. We reconstructed spatio-temporal variations post-Triassic palaeostress fields in strata using fault-slip tectonic inversion. Our highly resolved stress inversion...

Brazil is in an intraplate area of low to moderate seismicity, this means that few or no records strong ground motions are available. Part the site response analysis and seismic design structures require use acceleration time-histories compatible with a specified target spectrum. This study aims utilize methodologies based on existing earthquake from well-known database synthetic accelerograms ...

We present the effect of neotectonics in intracratonic settings as revealed by surface, brittle deformation associated to a regionally-sized shear corridor, which affects Southeastern Brazil. The zone is characterized presence nearly orthogonal fracture sets, interpreted systematic and non-systematic joints often cutting Quaternary deposits. An original methodology fault joint inversion Monte C...