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...

Demingding is a promising porphyry Mo-dominated deposit recently discovered in the eastern Gangdese metallogenic belt Tibet, China. We present zircon U-Pb-Lu-Hf isotopic studies, as well geochemical data of late monzogranites and prior rhyolites from to uncover their origin geodynamic mechanism. Zircon U–Pb dating yielded precise crystallization ages 17.3 ± 0.6 Ma (MSWD = 2.5) 186.5 3.0 2.0) fo...

The Western Qinling orogenic belt (WQOB) is one of the most important prospective gold districts in China, with widely distributed Indosinian intermediate–acidic intrusions. Liziyuan Au deposit a representative northern WQOB, hosting several sections spatially associated igneous rocks. hosted by meta-sedimentary volcanic rocks Cambrian–Ordovician Group and Tianzishan monzogranite. Two periods, ...

In their paper, Spiess et al. (2021) published structural, geochronological, and EBSD data on one of the monzogranite apophyses (Capo Bianco) buried Porto Azzurro Pluton (island Elba, Northern Apennines, Italy), a pluton emplaced in upper crust (P < 0.2 GPa; e.g. Papeschi al., 2019). The authors new U/Pb age 6.4 ± 0.4 Ma, associated with thermal peak, U-Th/He apatite 5.0 0.6 indicating cooling ...

granitoid rocks of kaje area, northwest ferdows, with the composition of diorite, monzodiorite, monzonite, monzogranite, syenogranite and granite, with calk-alkaline and high potassium affinities, have trace and rare earth element geochemical characteristics similar to those from subduction zones, belonging to i-type granitoid rocks. most of these rocks are oxidized (magnetite series), while on...

introduction the investigated area is situated in the south west of the khorasan razavi province along the north west of the lut block. different types of metal ore bodies along with non-metal deposits have already been documented in the lut block (karimpour et al., 2008). most of the study area is covered with granitoid rocks. metamorphic rocks with unknown age are present in the north of the ...

The late Pan-African Fawakhir, Urn Had and Urn Effein Granite Plutons in the Egyptian Central Eastern Desert are small, elongate to circular bodies of pink monzogranite and syenogranite, and grey monzodiorite. Structural investigation of the intrusive contacts of these plutons reveals marginal sub-horizontal intrusive sheets as magma injection along preexisting flat-lying structures including m...

Abstract Rubidium (Rb) deposits mostly occur in the South China and Central Asia orogenic belts are often closely associated with highly differentiated granites. This study aimed to investigate a newly discovered giant Rb deposit at Gariatong Lhasa terrane Tibet. Detailed field studies logging data revealed that mineralization mainly occurrs monzogranite is related greisenization. LA‐ICP‐MS U‐P...