Neoproterozoic sedimentary successions worldwide display evidence for multiple low-latitude glacial events and continental rifting episodes related to the fragmentation of the supercontinent Rodinia. In Death Valley, eastern California, these events are represented by two intervals of glacial diamictite and two episodes of synsedimentary extensional faulting in the Kingston Peak Formation. Deep...

Abstract. With the aim of unveiling evidence Late Quaternary faulting, a series ground-penetrating radar (GPR) profiles were acquired across southern portion Fosso della Valle–Campotenese normal fault (VCT), located at Campotenese continental basin (Mt. Pollino region) in Apennines active extensional belt (Italy). A set 49 GPR profiles, traced nearly perpendicular to this fault, was using 300 a...

We study the physical processes controlling the development and evolution of normal faults by analyzing numerical experiments of extension of an ideal two-dimensional elastic-plastic (brittle) layer floating on an inviscid fluid. The yield stress of the layer is the sum of the layer cohesion and its frictional stress. Faults are initiated by a small plastic flaw in the layer. We get finite faul...

We use more than 5000 crossings of magnetic anomalies and fracture zones along the Carlsberg and Central Indian ridges to examine whether the onset of widespread reverse faulting at ~ 8 Ma in the Central Indian Basin was accompanied by a significant change in India–Capricorn motion, whether the onset of this faulting represented the initiation of motion between these two plates, and whether the...

Crustal extension at mature continental rifts and oceanic ridges occurs by a combination of normal faulting and magma injection, which interact to create rift morphology. Quantifying the relative roles of faulting and melt intrusion in accommodating extension at magmatic rifts remains difficult and requires studies at sufficient spatial and temporal scales to resolve the interaction between the...

Seismicity was monitored beneath the Krafla central volcano, NE Iceland, between 2009 and 2012 during a period of volcanic quiescence, when most earthquakes occured within the shallow geothermal field. The highest concentration of earthquakes is located close to the rock-melt transition zone as the IDDP-1 wellbore suggests, and decays quickly at greater depths. We recorded multiple swarms of mi...

Deformation measurements from 64 sandstone samples collected in three study areas from the Eastern Belt of the Franciscan Complex are used to evaluate how the high­ pressure metamorphic interior of the Franciscan wedge was exhumed. Pressure estimates indicate 25-30 km of exhumation in this part of the Franciscan Complex. Much of the Eastern Belt has a semi-penetrative cleavage that formed by so...