Abstract The Taibai granitic plutons lie between the ductile shear zone to north and Shangdan suture south. deformation mechanism of shearing is crucial understanding exhumation processes multiple that formed after Late Mesozoic period. Geological investigations, microstructures, kinematic vorticity calculations indicate deformed in response pure shear-dominated (54%–65%) transpression top-to-N...

The distribution of metamorphic rocks throughout the western European Alps indicates subduction-related metamorphism. However, processes by which high-grade exhume remain disputed. Here, we present two-dimensional petrological–thermomechanical numerical models to investigate facies evolution during orogenesis. We model closure an oceanic basin with exhumed mantle bounded passive margins. To ens...

The central part of the Namaqua Metamorphic Province was subjected to intense deformation under high-grade metamorphic conditions up granulite facies, but also shows greenschist facies overprints denoting nature during 1.2–1.0 Ga Namaquan Orogeny. This study examines structural development Kakamas Domain eastern Province, which has not been extensively studied previously. compressional orogenic...

The Goiás Archean Block (GAB) in central Brazil is an important gold district that hosts several world-class orogenic deposits. A better comprehension of the crustal, tectono-magmatic, and metallogenic settings GAB essential to accurately define its geological evolution, evaluate crustal growth models, target We present overview systems, regional whole-rock Sm-Nd analyses have been used constra...

Major, minor, and trace element geochemistry as well iron oxidation state isotopes were investigated in serpentinites olivine-talc fels present along a metamorphic gradient the Bergell contact aureole (Central European Alps) to evaluate mobility during serpentine. This is an ideal target study dehydration of mantle rocks due increase temperature from greenschist facies conditions (350°C) amphib...

The Avalon Peninsula on the island of Newfoundland, Canada, defined as type zone Avalonia, is believed to have been impacted by several orogenetic and deformation events since Neoproterozoic. Previous studies determined that lowest degree metamorphism reached in successions was prehnite–pumpellyite or greenschist facies. We sampled measured 13 mainly clastic sedimentary sections ranging from la...

Using a combination of microstructural, spectroscopic, and geochemical analyses, we investigate how subgrain rotation recrystallization fluid migration affect Ti concentration [Ti] in naturally deformed quartz veins from the Prijakt Nappe (Austroalpine Unit, Eastern Alps). These coarse-grained veins, that formed at amphibolite facies conditions, were overprinted by lower greenschist deformation...

This contribution deals first new ICP-MS U–Pb zircon ages that indicate Middle- and Late Triassic magmatic episode tectonometamorphic events, respectively, for the central Patagonia region, instead of a Paleozoic history as previously estimated. The Calcatapul Formation consists (meta-) volcano-sedimentary syn-rift sequence deposited unconformably, shortly after extensional Gondwanide orogenic ...

Exploration of copper ore in the Nepal Himalayas has been carried out by different researchers at times. The author conducted detailed geological studies and mineral exploration some polymetallic prospects also reviewed literature related to Nepal. present research is able delineate two distinct mineralization belts extending from west east identify promising sites for that could be feasible mi...