Analysis of lithofacies, paleoflow directions, and sandstone petrography of upper Paleocene-lower Eocene paralic and continental sediments exposed along the transpressional suture zone of the western margin of the Indian plate indicate that the process of deformation and uplift of the carbonate shelf in this area had started by late Paleocene time. This tectonic uplift and deformation is docume...

Abstract The tectonic deformation of the outer Indo-Burman Ranges (i.e., Chittagong Tripura Fold Belt, CTFB) is associated with oblique convergence Indo-Burmese plates since latest Miocene. This article presents detailed field evidence structures and their kinematics in exposed Tertiary successions CTFB. We combine observations made this study published structural, geodetic, seismic data sets t...

Post-collisional mafic dykes crosscut the Paleozoic metamorphic basement and late-Variscan plutons in Les Guilleries massif (Catalan Coastal Ranges, NE Iberia). The predominance of phenocrysts, porphyritic texture, abundant amphibole, high MgO volatile content, together with crustal-like trace-element patterns indicate that correspond to calc-alkaline lamprophyres, mainly spessartites. Their en...

[1] Nearly complete coverage of shipboard multibeam bathymetry data at the right‐stepping Menard and Pitman Fracture Zones allowed us to map abyssal hill deviations along their traces. In this study we distinguish between (1) J‐shaped curvatures at their origin, where modeling is addressing primary volcanism and faulting following a curved zone, and (2) straight abyssal hills getting bent in an...

Induced earthquakes currently pose a significant hazard in the central United States, but there is considerable uncertainty about the severity of their ground motions. We measure stress drops of 39 moderate-magnitude induced and tectonic earthquakes in the central United States and eastern North America. Induced earthquakes, more than half of which are shallower than 5 km, show a comparable med...

In this contribution, we investigate the spatial and temporal evolution of mid-crustal flow in Agly Massif (North Pyrenean Zone) that represents southern foreland Variscan orogenic plateau. Massif, middle crust is represented by an Ediacarian–Devonian series metasedimentary rocks recorded high-grade metamorphism synchronously with crustal thinning (D2) dextral wrenching (D3) during Carboniferou...

Abstract The Portland and Tualatin basins are part of the Salish-Puget-Willamette Lowland, a 900-km-long, forearc depression lying between volcanic arc Coast Ranges Cascadia convergent margin. Such inland seaways characteristic warm, young slab subduction. We analyzed to better understand their evolution relation Range history provide an improved tectonic framework for metropolitan area. model ...

The Patagonian Andes have been used to illustrate the dependency of major topographic changes in response glacial erosion processes dominating over tectonic deformation and uplift. Here, we investigate contributors history evolution topography at 46.5°S. We present 33 new apatite zircon (U-Th)/He (AHe ZHe, respectively) fission track (AFT ZFT, ages integrated with 46 previously published bedroc...

Abstract Inversion structures including folds, reverse faults are observed along the Bjørnøyrenna Fault Complex in western Barents Sea, although fault complex is extensional origin and developed mid-Jurassic to Early Cretaceous. Subsidence was interrupted Cretaceous (Valanginian early Barremian) because of syn-rift localized tectonic inversion, itself related uplift Loppa High. The inversion ca...

[1] A simple dynamic model based on boundary layer theory shows that dynamic topography is unlikely to vary significantly in response to short term ( 20 Myr) variations in the mean tectonic velocity. Tectonic velocities essentially mirror variations in mantle viscosity, but are not indicative of substantial modification of dynamic topography, which primarily reflects mass anomalies in the mantl...