The Nam Pat Group of the Nam Pat Basin, Uttaradit Province, Thailand is situated in the Nan Suture Zone. Two contrasting tectonic framework models of the Nan Suture have previously been proposed: as a main Paleo-Tethyan suture and as a remnant of a closed back-arc basin. The goal of this study is to analyze the tectonic framework of the Nan Suture and reevaluate the existing tectonic models. Th...

In the Western Alps, while many P–T constraints are available for high-grade units, dataset low-grade units located along westernmost edge of belt remains scarcer and incomplete. To face these uncertainties, we quantify first time metamorphic peak conditions Marguareis Unit, a fragment European margin (Briançonnais Domain) regarded till now as very-low-grade unit, exposed boundary between Marit...

Introduction: Grooved terrain on Ganymede generally occurs as individual lanes and polygonal crosscutting swaths of bright terrain. Internally, grooved terrain swaths consist of parallel to sub-parallel ridges and troughs at a variety of scales (Fig. 1); the ridges and troughs show generally similar morphology, size, and orientation. Grooved terrain on Ganymede has been interpreted by most auth...

[1] Mature fault zones appear to be weaker than predicted by both theory and experiment. One explanation involves the presence of weak minerals, such as talc. However, talc is only a minor constituent of most fault zones and thus the question arises: what proportion of a weak mineral is needed to satisfy weak fault models? Existing studies of fault gouges indicate that >30% of the weak phase is...

[1] Vesta’s large southern hemisphere impact basin is likely to have caused reorientation. However, because the basin is not centred at the south pole, Vesta likely also has a remnant rotational figure. Reorientation of ≈6° is predicted to have occurred based on the dimensions of the basin. Existing measurements of Vesta’s shape are consistent with ≈20° or less reorientation, and ≈20% or less d...

Abstract The Central Alpine lower crustal migmatitic Gruf complex was exhumed in contact to the greenschist-grade Chiavenna ophiolite and gneissic Tambo nappe leading a lateral gradient of ~ 70 °C/km within ophiolite. 14 km long, E-W striking subvertical now bridges metamorphic conditions 730 °C, 6.6 kbar gneisses 500 4.2 serpentinites schists 2–4 north contact. An obvious fault, mylonite or hi...

The Dora-Maira massif is an archetypal nappe stack of subducted and exhumed upper crust. Slices continental crust experienced metamorphism at blueschist to ultrahigh-pressure (UHP) eclogite-facies conditions. While the timing peak in UHP unit has been extensively studied, little known about other units. In order constrain conditions high-pressure metamorphism, U-Pb-trace element analyses rutile...

[1] The M = 7.8 1906 San Francisco earthquake cast a stress shadow across the San Andreas fault system, inhibiting other large earthquakes for at least 75 years. The duration of the stress shadow is a key question in San Francisco Bay area seismic hazard assessment. This study presents a three-dimensional (3-D) finite element simulation of post-1906 stress recovery. The model reproduces observe...

CHAMP and Swarm satellite magnetic data are combined to establish the lithospheric magnetic field over the Tibetan Plateau at satellite altitude by using zonal revised spherical cap harmonic analysis (R-SCHA). These data are integrated with geological structures data to analyze the relationship between magnetic anomaly signals and large-scale geological tectonic over the Tibetan Plateau and to ...