Abstract Variable single and/or swarms of post-granitic dikes are widespread at Gabal Serbal, Southwestern Sinai, Egypt. The present article aims to identify and discriminate these multiphase through detailed geological, petrographical, geochemical examinations. These classified into two subphases: (1) acidic (porphyritic dacite, microgranite, granophyre, alkaline granophyre dikes); (2) basic (...

Different rock types (syenogranite, alkali feldspar granite and quartz syenite intruded by microgranite dikes veins) were investigated in the Nikeiba region Egypt. The main components of studied intrusive rocks, comprised granites syenite, are plagioclase, amphibole, biotite, K-feldspar different proportions. Ground gamma ray measurements show that syenogranite, have highest radioactivity (K, e...

Pre-Mesozoic exotic crystalline blocks within the Outer Carpathian flysch have potential to unravel nature of their eroded basement source(s) and reconstruct Paleozoic–Precambrian history Protocarpathians. Strongly tectonized Campanian–Maastrichtian grey marls in Subsilesian Nappe Western Carpathians Poland contain a variety different lithology types, including granitoids andesites. Petrologica...

The Aiguilles-Rouges and Mont-Blanc massifs represent a segment of crustal-scale transpressional shear zone named the East Variscan Shear Zone (EVSZ) along which two plutonic pulses occurred during Early Late Carboniferous times. aim this study is to constrain relationships between dynamics zone, mechanisms pluton emplacement at different structural levels within crust magma sources. A detailed...

The Wadhrai granite stock is a part of the Nagar Parkar Igneous Complex, an extension Neoproterozoic Malani Suite western Rajasthan. It occupied by petrographically uniform comprising perthite, plagioclase, quartz, with small quantities biotite, opaque oxides, titanite, and secondary minerals. rocks are sparingly porphyritic contain dykes microgranite, aplite, rare pegmatite. In south-central p...

La coupole de Montebras est un petit massif granite à métaux rares (Sn, W, Li, Nb-Ta) situé au nord du Massif Central Français qui se met en place Carbonifère supérieur dans encaissant plus ancien, le Chanon (357,2 ± 2,1 Ma). Deux épisodes magmatiques, microgranite (316,1 4,3 Ma) et leucogranite albitique (309,8 3,9 Ma), sont distingués. Le second développe son toit des formations contact, nota...

Abstract The Altenberg–Teplice Volcanic Complex (ATVC) is a large ~ NNW–SSE trending volcano-plutonic system in the southern part of Eastern Erzgebirge (northern Bohemian Massif, south-eastern Germany and northern Czech Republic). This study presents high precision U–Pb CA-ID-TIMS zircon ages for pre-caldera volcano-sedimentary Schönfeld–Altenberg various rocks caldera stage: Teplice rhyolite, ...