Abstract Groundwater seepage leads to the formation of theater-headed valleys (THVs) in unconsolidated sediments. In bedrock, role groundwater THV development remains disputed. Here, we integrate field and remote-sensing observations from Gnejna Valley (Maltese Islands) with numerical modeling demonstrate that can be main driver jointed limestone overlying clays. The inferred erosion mechanisms...

In this paper, the effects of three typical operation modes, namely short-circuit fault, load change, and chemical energy storage on frequency a regional power grid after photovoltaic asynchronous interconnection were studied with different penetration ratios, taking in Northern Henan Province as research object. It was found that an increase ratio, maximum value system fluctuation amplitude gr...

Seismic reflection profiles, drill-hole data, and geologic maps delimit the form of normal faults and Tertiary sedimentary rocks in the southern half of the Cache Valley basin in northern Utah. Dips of faults and sedimentary rocks were estimated from time-migrated reflection profiles by using the stacking velocities for the data. At the southern end of the basin, the East Cache fault zone is li...

Introduction Changes in land surface shape in active tectonic  zones result from interplay between tectonic forces and surface processes (Keller and Pinter, 1996; Keller et al., 1999). Salt Domes  are dome-shaped Geological structures whose central core is composed of salt. Their economic importance is due to the location of oil tanks in structures with salt domes and also the presence of sulf...

This study develops a fault-source-based seismic hazard model for the Leech River Valley Fault (LRVF) and Devil’s Mountain (DMF) in southern Vancouver Island, British Columbia, Canada. These faults pose significant risks to provincial capital, Victoria, due their proximity potentially large earthquake magnitudes. To evaluate effects of including these probabilistic analysis city-wide loss estim...

At least five surface rupturing earthquakes that occurred during a <300 year time span near Carson City, Nevada, USA form spatiotemporal cluster of similar to those observed on fault systems around the world. These exhibit not only temporal clustering behavior, but also have varying rupture boundaries successive earthquakes. The Range Fault System is series east-dipping normal faults extend ∼10...

The Behabad region is located within a tectono–sedimentary zone in southeast Yazd province, Central Iran. The tectonic activities have deformed and faulted the Mesozoic and Quaternary formations in this area. The faults in Kuhbanan and Behabad have played a key role in the evolution of geological events, mineralization, and the formation of Behabad–Kuhbanan horst. These faults have separated th...