The D. João de Castro is a submarine volcano with known hydrothermal activity located in the Terceira ultra-slow spreading rift within Azores triple junction (ATJ). Several well-known mafic and ultramafic rock-hosted seafloor systems lay along Mid-Atlantic Ridge, to north south of platform, yet little about activity, ore-metal availability, magmatic–hydrothermal interactions ATJ. Here, we inves...

Abstract The Banchetta-Rognosa tectonic unit (BRU), covering an area of 10 km 2 in the upper Chisone valley, consists two successions referred to a continental margin (Monte Banchetta succession) and proximal oceanic domain (Punta Rognosa respectively. In both successions, Mesozoic meta-sedimentary covers discordantly lie on their basement. This paper presents new data lithostratigraphy metamor...

The continental collision between India and Asia has been ongoing since early Eocene time, but the orogenic record is typically dominated by Miocene younger deformation metamorphism that largely overprinted earlier Eocene-Oligocene events. This hinders our understanding of how crustal thickening responds to initial when Himalayan mountains initially rise. advancement spatially precise petrochro...

Data collated from subalkaline lavas and dikes of Palaeogene ophiolites the SW Pacific in Papua, New Guinea, Caledonia, North Island, Zealand interpreted as having formed first upon subduction initiation, are investigated to determine whether these MORB like, similar other initiation IBM forearc. ophiolite mostly tholeiitic basalt; however, calc-alkaline comprise ~ 25% samples. Major element ab...

In the Western Gneiss Region in Norway, mafic eclogites form lenses within granitoid orthogneiss and contain best record of pressure temperature evolution this ultrahigh-pressure (UHP) terrane. Their exhumation from UHP conditions has been extensively studied, but their prograde rarely quantified although it represents a key constraint for tectonic history area. This study focused on well-prese...