This paper present new U–Pb geochronological data (LA-ICP MS on zircon) of granitoids from the Moroccan Meseta Variscan belt. Zircons Oulad Ouaslam granodiorite in Jebilet massif Western highlight a peak magmatic activity at 335.2 ± 0.8 Ma. In Eastern Meseta, ages obtained several facies High Moulouya complex restrained its to early Visean: 339.6 1.9 Ma for Perdreaux granite, 337 1.6 calc-alkal...

Many granitic intrusions display evidence of magma mixing processes. The interaction melts contrasting composition may play a significant role during their generation and evolution. Strzegom-Sobotka massif (SSM), located in the Sudetes (SW Poland) north-eastern part Bohemian Massif Central European Variscides, exhibits mingling on macro- micro-scales. The massif is composite intrusion, with fou...

We present high-precision isotope dilution-thermal ionization mass spectrometry (ID-TIMS) U-Pb zircon data from the Carboniferous Punteglias granodiorite Central Alpine basement in Aar massif Switzerland. These analyses yield complex age spectra consisting of both concordant and normally discordant dates, which form a linear array indicative mixing two components within individual crystals. Whi...

the etive igneous complex has intruded into dalradian and moine meta-sedimentary rocks in devonian. main rock types of the complex are granodiorite, monzodiorite, monzogranite, granite and diorite. geochemical studies show that the magmas were of high k calc-alkaline, i-type and metaluminous nature. application of discriminant diagrams to the etive rocks indicates a possible within-plate tecton...

The Shaitian granite complex (SGC) spans more than 80 Ma of crustal growth in the Arabian–Nubian Shield southeast Egypt. It is a voluminous composite intrusion (60 km2) comprising host tonalite massif intruded by subordinate dyke-like masses trondhjemite, granodiorite and monzogranite. tonalite, turn, encloses several, fine-grained amphibolite enclaves. U-Pb zircon dating indicates wide range c...