...N.A. Radziminovich Abstract —Earthquake focal mechanisms that are atypical for the South Baikal basin, which is under the extension of the Earth’s crust in the NW-SE direction, are analyzed. Atypical mechanisms are understood as focal solutions of strike-slip and reverse fault types, as well...

... of the central Himalaya, PT2 is less distinct in western Nepal, reflecting along-strike changes in MHT geometry and/or a migrating locus of midcrustal deformation, the details of which have important implications for seismic hazard in western Nepal. New mineral cooling ages (apatite and zircon U-Th/He...

...Natasha Toghramadjian; John H. Shaw ABSTRACT We present a new, 3D representation of the Long Beach restraining bend system along the Newport–Inglewood fault (NIF), Los Angeles, California. The NIF is an active strike‐slip system that cuts over 60 km through densely populated metropolitan Los...

...Xi Peng; Chun-Feng Li Abstract We analyse how the potential field and deep structures of the continent–ocean transition (COT) zone in the northern South China Sea vary along-strike with the aim of understanding the break-up styles and synrift magmatism in this region. The high free-air gravity...

... originating from Siwalik (for all rivers of the western segment). For rivers originating from Lesser Himalaya, the river segments were divided into Lesser Himalaya, Siwalik and piedmont. The results of the chi analysis are used to infer the spatial variation of tectonic activity along and across the strike...

...‐constrained 3D geometric–kinematic reconstruction and a related high‐quality catalog. Our new 3D algorithm was applied to smooth the ABT seismicity on the grid, resulting in a 3D earthquake rate model that also provides rupture parameters such as strike, dip, rake, and seismogenic thickness. Our approach...

... ductile shearing are separated by unsheared or less-sheared rocks. In Hutti, nine such curviplanar, intensely sheared auriferous zones (“reefs” in the miners’ parlance) are recognized within a distance of about 1.5km across strike. At places the shear zones bifurcate and may rejoin to form horses...

... to study whether a general pattern exists for deep postseismic slips in this area. The previous studies have shown that the ruptures of these three mainshocks did not extend to the surface, and these mainshocks may have occurred on a blind fault system with a northwest–southeast strike ( Hsu et al. , 2011...

... for uncertainty and anisotropy. We introduce PREDICT, a methodology that computes probability distributions for the directional components (dip-normal, strike-parallel, and dip-parallel) of the fault permeability tensor from statistical samples for a set of geological variables. These variables, which include...

... of the eastward subducted SCS oceanic lithosphere can be clearly identified. The focal depths are down to ∼100 km near Luzon island at ∼16° N but deepen southward to a depth of ∼180 km at ∼14° N. Dips of the slab also steepen from north to south, indicating along‐strike changes in the geometry of the Manila...

... with Jurassic to Early Cretaceous ages. They show steep attitudes with strikes varying from NNW to NNE and from NE to SE, consistent with a stress regime transition from E–W to N–S extension. Major-element analysis on representative dyke samples reveals a composition range from basaltic to andesitic with a few...

... intervals. The 110 km long fault zone is composed of vertical and moderately dipping segments that accommodate oblique, right‐lateral reverse displacement. Onshore, there is a counterclockwise reorientation in the PVFZ’s strike, which produces a major restraining bend that generates the Palos Verdes...

... (MFT), Main Boundary Thrust (MBT), and Main Central Thrust (MCT), which also demarcates the tectonic divisions. These thrust faults are striking almost parallel along the entire Himalayan arc except at some places. In Sikkim Himalaya, the MBT trend is almost E-W, but the MCT trend is almost N-S...

... original surface broken by a fault, the scarp height is equal to the vertical throw. The horizontal component of the total dip-slip (horizontal heave, Fig. 6 ) was measured perpendicular to the strike of the rupture. For all ruptures, the strike, the length, and the dip of the original surfaces, as well...

... is characterised by of alternating tabular sheet like beds of grey mudstone, siltstone and sandstone with uncommon thin conglomerate beds. On the basis of the four-fold classification, the Siwalik rocks of the Arunachal Himalaya have been mapped over a strike length of ~230 km, demonstrating the lateral continuity...

... are gently westerly dipping with a general dip amount not exceeding 10°. The outcrop pattern ( Fig.2 ) reveals that the basement has been repeated in three major fault slices. The faults are in general N-S oriented and are sub-parallel to the general strike of the beds. Locally developed asymmetric...

...Jared T. Gooley; Glenn R. Sharman; Stephan A. Graham Abstract The correlation of the ca. 23 Ma Pinnacles and Neenach volcanic complexes provides the most robust estimate on the timing and magnitude of Neogene right-lateral displacement on the San Andreas strike-slip fault system (California, United...

... structural grain strikes NW-SE consistent with the general Dharwarian trend. In the immediate east, five successive deformation phases have been identified from structural analysis of the basement rocks in a small area of granites and gneisses around Chitrial by carrying out integrated AMS data...

... In order to reduce the subjectivity in the rock slope stability evaluation obtained from RMR system, due to the absence of the orientation of discontinuity parameters namely dip, strike, slope inclination, and azimuth, the modified SMR method was then applied in the present study. The modified SMR method...

.../phyllites intercalated with quartzite beds (Cambrio-Silurian and Pre-Cambrian) overlain by recent unconsolidated material of gravel, sand, silt with clay. The whole area is structurally dominated by complex folded and tilted sequence with sharp litho-contacts. The general strike direction of bedding plane...