Anxiety Disorders in Williams Syndrome Contrasted with Intellectual Disability and the General Population: A Systematic Review and Meta-Analysis

Individuals with specific genetic syndromes associated with intellectual disability (ID), such as Williams syndrome (WS), are at increased risk for developing anxiety disorders. A systematic literature review identified sixteen WS papers that could generate pooled prevalence estimates of anxiety disorders for WS. A meta-analysis compared these estimates with prevalence estimates for the heterogeneous ID population and the general population. Estimated rates of anxiety disorders in WS were high. WS individuals were four times more likely to experience anxiety than individuals with ID, and the risk was also heightened compared to the general population. The results provide further evidence of an unusual profile of high anxiety in WS

New Variscan 40Ar-39Ar Ages for the Danubian Ophiolite

International audienc

Contribution of the Corbu Mylonitic Zone to the emplacement and cooling of the Carboniferous Cherbelezu granitoid (Almaj Mountains, Romania)

International audienc

Implications of petrostructural analysis on the tectonic evolution of the Neoproterozoic Tasriwine ophiolite (Anti-Atlas, Morocco)

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Géochimie des roches méta-volcaniques de l'ophiolite de Tasriwine, Anti-Atlas, Maroc: nature des sources et environnement tectonique de mise en place

International audienc

New structural data and 40Ar-39Ar ages from the Danubian ophiolitic sole: implications for the Variscan collision

International audienc

Petrology, geochemistry and Sm-Nd analyses on the Balkan-Carpathian Ophiolite (BCO – Romania, Serbia, Bulgaria): Remnants of a Devonian back-arc basin in the easternmost part of the Variscan domain

International audienceThe pre-Alpine basement of the Southern Carpathians/Western Balkans contains four ophiolitic massifs dismembered by Alpine tectonics, which define the “Balkan-Carpathian Ophiolite” (BCO) for which the tectonic setting and age of formation are still debated (Precambrian or Early Devonian). In this contribution, we demonstrate that, in light of a Pre-Alpine restoration, the four massifs belonged to a unique slice of very complete, obducted oceanic lithosphere and we re-evaluate its tectonic setting. Large chromitite volumes with Al-rich spinel compositions (Cr# = 0.39–0.48), as well as major and trace geochemical results on basalts (slightly enriched N-MORBs with low negative Nb anomaly associated with calk-alkaline BABBs), point to a formation in a back-arc basin. Mantle spinel composition (Cr# = 0.49–0.51) and melting modeling indicate mean melting extents of 8.5–11% favouring intermediate spreading rate. New Sm-Nd dating on lower gabbroic rocks give a whole rock isochron, interpreted as the age of formation of the BCO crust at 409 ± 38 Ma, thus confirming an Early Devonian oceanic crust. The previous ∼563 Ma U-Pb zircon age can be interpreted as casual inheritance indicating the proximity of an old continental lithosphere. Taking into account the lithological evidences and paleocontinental affinities of the two recognized terranes separated by the BC oceanic basin (Balkans and Sredna Gora) and by analogy with other Variscan ophiolites in Western/Central Europe, we suggest that the BC ophiolite belong to the ∼400 Ma ophiolites group obducted between West and East Galatia and belonging to the southern Variscan suture. However, the BC ophiolite is the only one of this group obducted to the north and not involved in the Lower Allochthon/ophiolite/Upper Allochthon thrust pile, likely explaining its exceptional preservation. Finally, we tentatively propose a new unifying tectonic model where different terrane drift rates and highly oblique displacements create two Rheic branches, the “Rheic” and the “Galicia-Brittany-Massif Central”. © 2017 Elsevier Lt

Occurence of a mylonitic zone developed on oceanic and sedimentary rocks (Almaj mountains, Romania): Record of the obduction of the Danubian ophiolite?

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Intra-oceanic arc growth driven by magmatic and tectonic processes recorded in the Neoproterozoic Bougmane arc complex (Anti-Atlas, Morocco)

The Bougmane complex represents the lower crustal section of a Neoproterozoic oceanic arc.Successive arc magmatic pulses triggered the ‘garnetisation’ of hydrous arc mafics and the in situ formation of tonalitic melt via dehydration and dehydration-melting reactions.Moroccan oceanic arc relics reached a significant crustal thickness (>30–35 km) via a combination of intra-oceanic magmatic and tectonic processes